| Portsmouth Rhode Island Weather Almanac |
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| Monday,
December 18, 2023 |
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| Cloudy,
Heavy Rain & Fog, Stormy, Partly Cloudy Late, Very Windy and Very Warm |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2023 |
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December 18, 2023 |
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Record |
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Record |
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| Observed Daily Data |
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2023 |
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2022 |
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Norm |
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Depart |
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Highest |
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Lowest |
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| Maximum Temperature |
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59 |
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41 |
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43 |
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+16 |
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60 |
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in |
1984 |
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11 |
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in |
1919 |
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| Minimum
Temperature |
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45 |
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32 |
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29 |
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+16 |
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47 |
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in |
1996 |
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-3 |
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in |
1919 |
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| Average Temperature |
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52 |
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37 |
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36 |
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+16 |
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52 |
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in |
2023 |
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4 |
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in |
1919 |
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| Month Avg Max Temperature |
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48.6 |
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44.5 |
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44.7 |
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+3.9 |
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54.6 |
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in |
2015 |
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30.7 |
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in |
1904 |
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| Month Avg
Min Temperature |
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35.9 |
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33.4 |
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31.6 |
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+4.4 |
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41.8 |
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in |
2015 |
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16.4 |
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in |
1989 |
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| Month Average
Temperature |
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42.5 |
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39.2 |
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38.0 |
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+4.5 |
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48.5 |
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in |
2015 |
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25.1 |
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in |
1904 |
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| High Heat Index |
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#N/A |
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in |
#N/A |
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| Low Wind
Chill |
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40 |
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22 |
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16 |
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+24 |
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-15 |
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in |
1919 |
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| Heating Degree Days |
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13 |
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28 |
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29 |
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-16 |
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61 |
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in |
1919 |
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13 |
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in |
2023 |
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| Month Heating DD |
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405 |
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464 |
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485 |
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-80 |
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719 |
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in |
1904 |
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297 |
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in |
2015 |
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| Season
Heating DD |
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1346 |
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1285 |
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1475 |
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-129 |
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2031 |
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in |
1904 |
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1092 |
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in |
2015 |
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| Cooling Degree Days |
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0 |
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0 |
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0 |
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+0 |
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in |
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0 |
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in |
Many |
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| Month Cooling DD |
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0 |
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0 |
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0 |
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+0 |
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3 |
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in |
2022 |
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0 |
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in |
Many |
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| Year Cooling DD |
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726 |
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784 |
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609 |
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+117 |
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871 |
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in |
2020 |
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290 |
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in |
1902 |
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| Maximum Dew Point |
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58 |
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30 |
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35 |
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+23 |
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58 |
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in |
2023 |
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4 |
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in |
2009 |
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| Minimum
Dew Point |
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40 |
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23 |
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20 |
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+20 |
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47 |
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in |
1996 |
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-10 |
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in |
1979 |
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| Average Dew Point |
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49 |
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27 |
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28 |
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+21 |
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50 |
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in |
1996 |
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-1 |
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in |
1979 |
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| Month Avg Max Dew Point |
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42.2 |
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38.8 |
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35.9 |
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+6.4 |
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49.3 |
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in |
2015 |
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18.1 |
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in |
1989 |
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| Month Avg
Min Dew Point |
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30.6 |
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25.2 |
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20.7 |
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+9.9 |
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37.4 |
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in |
2015 |
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-0.4 |
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in |
1989 |
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| Month Average Dew Point |
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36.7 |
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32.3 |
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28.3 |
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+8.4 |
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43.6 |
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in |
2015 |
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8.8 |
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in |
1989 |
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| Precipitation |
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1.59 |
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.00 |
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.15 |
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+1.44 |
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1.59 |
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in |
2023 |
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| One Hour
Rain |
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.50 |
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.00 |
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.50 |
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in |
2023 |
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| Half Hour
Rain |
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.31 |
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.00 |
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.31 |
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in |
2023 |
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| Hourly Rain Rate |
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4.54 |
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.00 |
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4.54 |
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in |
2023 |
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| Month Precipitation |
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4.63 |
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3.55 |
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2.71 |
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+1.92 |
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7.74 |
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in |
1936 |
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.27 |
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in |
1998 |
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| Year Precipitation |
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53.68 |
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41.36 |
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44.14 |
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+9.54 |
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63.81 |
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in |
1983 |
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27.14 |
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in |
1965 |
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| Snow |
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0.0 |
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0.0 |
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0.2 |
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-0.2 |
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6.6 |
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in |
1904 |
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| Snow Depth |
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0 |
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0 |
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1 |
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-1 |
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12 |
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in |
1904 |
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| Month Snow |
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0.1 |
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1.5 |
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3.2 |
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-3.1 |
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21.3 |
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in |
1981 |
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0.0 |
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in |
2015 |
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| Season Snow |
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0.1 |
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1.5 |
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3.8 |
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+3.8 |
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21.3 |
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in |
1981 |
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0.0 |
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in |
2015 |
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December 18, 2023 |
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|
Record |
Record |
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| Observed Daily Data |
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2023 |
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2022 |
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Norm |
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Depart |
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Highest |
Lowest |
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| Maximum Humidity |
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99% |
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84% |
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85% |
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+14% |
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100% |
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in |
2017 |
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51% |
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in |
1978 |
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| Minimum
Humidity |
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82% |
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52% |
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54% |
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+28% |
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96% |
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in |
1996 |
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26% |
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in |
2002 |
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| Average Humidity |
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91% |
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68% |
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70% |
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+21% |
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98% |
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in |
1996 |
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43% |
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in |
1978 |
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| Maximum Barometer |
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29.84 |
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29.96 |
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30.14 |
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-00.30 |
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30.59 |
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in |
1957 |
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29.59 |
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in |
2001 |
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| Minimum
Barometer |
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28.92 |
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29.76 |
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29.78 |
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-00.86 |
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30.38 |
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in |
1957 |
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28.92 |
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in |
2023 |
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| Average Barometer |
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29.38 |
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29.86 |
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29.96 |
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-00.58 |
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30.49 |
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in |
1957 |
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29.37 |
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in |
2001 |
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| Average
Wind |
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18.2 |
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9.4 |
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8.7 |
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+9.5 |
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20.4 |
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in |
2018 |
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1.5 |
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in |
1967 |
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| Direction |
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SSE |
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WNW |
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WNW |
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NW |
ESE |
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| High
Wind Gust |
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61 |
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23 |
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27 |
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+34 |
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61 |
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in |
2023 |
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9 |
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in |
1967 |
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| Direction |
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SSE |
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NW |
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WNW |
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SSE |
ESE |
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| Maximum Water Temp |
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50.5 |
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46.9 |
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45.9 |
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+4.6 |
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51.5 |
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in |
2011 |
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39.9 |
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in |
2007 |
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| Minimum
Water Temp |
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48.7 |
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45.3 |
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43.6 |
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+5.1 |
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50.2 |
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in |
2015 |
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37.5 |
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in |
2007 |
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| Average Water Temp |
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49.6 |
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46.1 |
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44.8 |
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+4.8 |
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50.4 |
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in |
2015 |
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38.7 |
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in |
2007 |
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| Sunrise/ AM Twilight |
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7:06:25 AM |
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6:36:58 AM |
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| Sunset /
PM Twilight |
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4:16:44 PM |
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4:46:41 PM |
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| Length Of Day |
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9:10:19 |
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| Special Conditions |
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Fog |
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| Comments |
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Record breaking low Baromter, High Wind Gust |
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| Hour-by-Hour Weather For December 18, 2023 |
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| Climate Weather for December 18 |
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| Weather History For December 18 |
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| Weather Calendar |
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