| Portsmouth Rhode Island Weather Almanac |
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| Saturday,
December 4, 2021 |
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| Mostly
Cloudy early, Cloudy Day to Partly Cloudy PM, Cooler |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2021 |
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December 4, 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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43 |
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56 |
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46 |
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-3 |
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68 |
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in |
1998 |
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20 |
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in |
1906 |
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| Minimum
Temperature |
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31 |
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47 |
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33 |
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-2 |
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53 |
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in |
1950 |
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5 |
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in |
1940 |
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| Average Temperature |
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37 |
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52 |
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39 |
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-2 |
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59 |
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in |
1998 |
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13 |
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in |
1906 |
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| Month Avg Max Temperature |
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49.0 |
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53.3 |
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46.5 |
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+2.5 |
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59.5 |
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in |
1998 |
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29.3 |
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in |
1896 |
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| Month Avg
Min Temperature |
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34.0 |
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40.0 |
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33.5 |
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+0.5 |
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44.8 |
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in |
1998 |
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13.3 |
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in |
1989 |
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| Month Average
Temperature |
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41.8 |
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47.0 |
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39.8 |
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+2.0 |
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52.5 |
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in |
1998 |
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23.3 |
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in |
1976 |
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| High Heat Index |
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| Low Wind Chill |
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23 |
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44 |
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23 |
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+0 |
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-11 |
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in |
1989 |
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| Heating Degree Days |
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28 |
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13 |
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26 |
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+2 |
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52 |
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in |
1906 |
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6 |
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in |
1998 |
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| Month HDD |
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93 |
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72 |
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101 |
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-8 |
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167 |
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in |
1976 |
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50 |
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in |
1998 |
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| Season HDD |
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887 |
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865 |
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1091 |
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-204 |
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1459 |
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in |
1904 |
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862 |
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in |
2011 |
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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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35 |
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47 |
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39 |
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-4 |
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58 |
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in |
1990 |
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1 |
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in |
1989 |
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| Minimum
Dew Point |
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18 |
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32 |
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24 |
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-6 |
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50 |
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in |
1950 |
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-11 |
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in |
1989 |
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| Average Dew Point |
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27 |
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40 |
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31 |
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-4 |
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54 |
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in |
1950 |
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-5 |
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in |
1989 |
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| Month Avg Max Dew Point |
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39.3 |
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45.0 |
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38.5 |
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+0.8 |
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51.0 |
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in |
1982 |
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13.8 |
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in |
1976 |
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| Month Avg
Min Dew Point |
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22.8 |
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29.3 |
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23.8 |
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-1.0 |
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39.0 |
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in |
1982 |
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-3.8 |
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in |
1989 |
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| Month Average Dew Point |
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31.3 |
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37.5 |
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31.1 |
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+0.1 |
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45.0 |
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in |
1982 |
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6.0 |
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in |
1976 |
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| Precipitation |
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.00 |
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.01 |
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.15 |
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-.15 |
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2.40 |
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in |
1990 |
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| One Hour |
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.00 |
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.01 |
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.39 |
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in |
1990 |
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| Hourly Rate |
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.00 |
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.00 |
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.17 |
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in |
2006 |
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| Month Precipitation |
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T |
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.05 |
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.60 |
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-.60 |
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3.13 |
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in |
1893 |
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.00 |
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in |
2011 |
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| Year Precipitation |
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45.58 |
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36.93 |
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42.03 |
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+3.55 |
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61.39 |
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in |
1983 |
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24.18 |
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in |
1957 |
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| Snow |
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0.0 |
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0.0 |
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0.1 |
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-0.1 |
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3.3 |
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in |
1901 |
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in |
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| Snow Depth |
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0 |
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0 |
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4 |
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in |
1898 |
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in |
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| Month Snow |
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0.0 |
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0.0 |
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0.4 |
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-0.4 |
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4.2 |
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in |
2019 |
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0.0 |
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in |
2021 |
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| Season Snow |
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T |
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0.6 |
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1.0 |
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-1.0 |
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19.5 |
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in |
1898 |
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0.0 |
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in |
2017 |
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December
4, 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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78% |
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87% |
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85% |
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-7% |
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100% |
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in |
2001 |
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42% |
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in |
1980 |
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| Minimum
Humidity |
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53% |
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51% |
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54% |
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-1% |
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91% |
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in |
1955 |
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24% |
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in |
2000 |
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| Average Humidity |
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66% |
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69% |
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69% |
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-4% |
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93% |
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in |
1964 |
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33% |
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in |
1980 |
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| Maximum Barometer |
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30.15 |
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30.14 |
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30.14 |
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+00.01 |
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30.72 |
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in |
1966 |
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29.56 |
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in |
2019 |
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| Minimum
Barometer |
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30.04 |
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29.93 |
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29.82 |
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+00.22 |
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30.55 |
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in |
1966 |
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29.01 |
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in |
1978 |
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| Average Barometer |
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30.10 |
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30.04 |
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29.98 |
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+00.11 |
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30.64 |
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in |
1966 |
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29.47 |
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in |
1970 |
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| Average Wind |
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6.0 |
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9.0 |
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7.9 |
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-1.9 |
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19.4 |
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in |
1980 |
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1.8 |
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in |
1994 |
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| Direction |
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SSW |
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SW |
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WNW |
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NW |
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SSW |
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| High Wind Gust |
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22 |
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28 |
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25 |
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-3 |
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58 |
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in |
1900 |
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11 |
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in |
2017 |
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| Direction |
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WNW |
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S |
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WNW |
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E |
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NE |
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| Maximum Water Temp |
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50.2 |
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51.1 |
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48.3 |
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+1.9 |
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52.6 |
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in |
2009 |
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43.5 |
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in |
2000 |
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| Minimum
Water Temp |
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48.9 |
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48.7 |
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45.9 |
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+3.0 |
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51.0 |
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in |
2009 |
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39.4 |
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in |
2002 |
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| Average Water Temp |
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49.6 |
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49.9 |
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47.1 |
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+2.4 |
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51.8 |
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in |
2009 |
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41.9 |
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in |
2002 |
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| Sunrise/ AM Twilight |
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6:54:00 AM |
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6:24:39 AM |
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| Sunset /
PM Twilight |
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4:17:13 PM |
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4:46:34 PM |
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| Length Of Day |
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9:23:13 |
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| Special Conditions |
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None |
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| Comments |
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| Hour-by-Hour Weather For December 4, 2021 |
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| Climate Weather for December 4 |
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| Weather History For December 4 |
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| Weather Calendar |
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| Back
To Weather Stat Page |
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