| Portsmouth Rhode Island Weather Almanac |
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| Sunday,
December 19, 2021 |
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| Cloudy, Light
Rain & Fog early, Partly Cloudy PM, Windy and Cooler |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2021 |
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December 19, 2021 |
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Record |
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Record |
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| Observed Daily Data |
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2021 |
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2020 |
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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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42 |
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31 |
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42 |
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+0 |
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57 |
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in |
1899 |
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19 |
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in |
1919 |
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| Minimum
Temperature |
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24 |
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18 |
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29 |
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-5 |
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41 |
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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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33 |
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25 |
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36 |
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-3 |
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48 |
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in |
1899 |
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11 |
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in |
1919 |
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| Month Avg Max Temperature |
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49.6 |
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43.0 |
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44.5 |
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+5.1 |
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53.8 |
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in |
2015 |
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31.3 |
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in |
1904 |
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| Month Avg
Min Temperature |
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35.7 |
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31.3 |
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31.4 |
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+4.3 |
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41.4 |
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in |
2015 |
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16.2 |
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in |
1989 |
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| Month Average Temperature |
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42.9 |
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37.4 |
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37.9 |
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+5.0 |
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47.9 |
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in |
2015 |
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24.9 |
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in |
1989 |
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| High Heat Index |
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| Low Wind Chill |
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15 |
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10 |
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13 |
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+2 |
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-11 |
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in |
1979 |
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| Heating Degree Days |
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32 |
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40 |
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29 |
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+3 |
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54 |
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in |
1919 |
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17 |
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in |
1899 |
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| Month HDD |
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420 |
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525 |
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514 |
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-94 |
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761 |
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in |
1989 |
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325 |
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in |
2015 |
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| Season HDD |
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1214 |
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1318 |
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1504 |
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-290 |
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2066 |
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in |
1904 |
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1120 |
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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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in |
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| Month CDD |
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0 |
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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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in |
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| Year Cooling Degree Days |
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795 |
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871 |
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609 |
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+186 |
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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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42 |
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21 |
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35 |
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+7 |
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54 |
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in |
1990 |
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4 |
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in |
1991 |
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| Minimum Dew
Point |
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16 |
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13 |
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20 |
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-4 |
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41 |
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in |
1996 |
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-14 |
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in |
1979 |
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| Average Dew Point |
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29 |
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17 |
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27 |
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+2 |
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45 |
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in |
1996 |
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0 |
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in |
1979 |
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| Month Avg Max Dew Point |
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42.9 |
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36.3 |
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35.7 |
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+7.2 |
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48.5 |
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in |
2015 |
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17.9 |
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in |
1989 |
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| Month Avg
Min Dew Point |
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23.6 |
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23.5 |
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20.5 |
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+3.0 |
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36.2 |
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in |
2015 |
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-0.2 |
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in |
1989 |
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| Month Average Dew Point |
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33.4 |
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30.1 |
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28.1 |
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+5.3 |
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42.5 |
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in |
2015 |
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8.9 |
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in |
1989 |
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| Precipitation |
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.10 |
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.00 |
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.15 |
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-.05 |
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1.95 |
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in |
1986 |
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| One Hour |
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.06 |
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.00 |
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.41 |
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in |
1986 |
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| Hourly Rate |
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.26 |
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.00 |
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.36 |
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in |
2007 |
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| Month Precipitation |
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.97 |
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4.23 |
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2.86 |
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-1.89 |
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7.88 |
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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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46.55 |
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41.11 |
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44.29 |
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+2.26 |
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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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8.8 |
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in |
2008 |
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in |
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| Snow Depth |
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0 |
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7 |
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18 |
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in |
1904 |
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in |
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| Month Snow |
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0.2 |
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7.4 |
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3.4 |
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-3.2 |
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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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0.2 |
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8.0 |
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4.0 |
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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
19, 2021 |
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|
Record |
Record |
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| Observed Daily Data |
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2021 |
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2020 |
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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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98% |
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84% |
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84% |
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+14% |
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100% |
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in |
2001 |
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57% |
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in |
1978 |
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| Minimum
Humidity |
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67% |
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59% |
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54% |
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+13% |
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96% |
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in |
1993 |
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33% |
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in |
2009 |
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| Average Humidity |
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83% |
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72% |
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69% |
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+14% |
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98% |
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in |
1993 |
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46% |
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in |
1978 |
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| Maximum Barometer |
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30.20 |
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30.40 |
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30.17 |
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+00.03 |
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30.74 |
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in |
1991 |
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29.68 |
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in |
1963 |
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| Minimum
Barometer |
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29.74 |
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30.30 |
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29.84 |
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-00.10 |
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30.46 |
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in |
1964 |
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29.25 |
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in |
1969 |
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| Average Barometer |
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29.97 |
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30.35 |
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30.00 |
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-00.03 |
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30.55 |
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in |
1964 |
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29.51 |
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in |
1986 |
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| Average Wind |
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10.5 |
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3.5 |
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8.2 |
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+2.3 |
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18.5 |
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in |
1977 |
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3.0 |
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in |
2007 |
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| Direction |
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NNW |
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NNW |
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WNW |
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NE |
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E |
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| High Wind Gust |
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30 |
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13 |
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26 |
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+4 |
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49 |
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in |
1986 |
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13 |
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in |
2020 |
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| Direction |
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N |
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NNW |
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N |
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ENE |
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NNW |
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| Maximum Water Temp |
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48.9 |
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44.6 |
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45.5 |
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+3.4 |
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50.4 |
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in |
2006 |
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40.6 |
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in |
2018 |
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| Minimum
Water Temp |
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45.9 |
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42.6 |
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42.7 |
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+3.2 |
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48.7 |
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in |
2015 |
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37.9 |
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in |
2018 |
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| Average Water Temp |
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47.4 |
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43.6 |
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44.1 |
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+3.3 |
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49.5 |
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in |
2015 |
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39.3 |
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in |
2018 |
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| Sunrise/ AM Twilight |
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7:07:18 AM |
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6:37:33 AM |
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| Sunset / PM
Twilight |
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4:17:21 PM |
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4:47:07 PM |
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| Length Of Day |
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9:10:03 |
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| Special Conditions |
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Fog |
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| Comments |
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| Hour-by-Hour Weather For December 19, 2021 |
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| Climate Weather for December 19 |
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| Weather History For December 19 |
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| Weather Calendar |
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| Back
To Weather Stat Page |
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