| Portsmouth Rhode Island
Weather Almanac |
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| Wednesday, December 16, 2020 |
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| Partly Cloudy to Cloudy Evening with Light Snow and Fog and
Very Cold |
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| Climate
Normal Period |
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Climate Record Period |
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| 1981- 2010 |
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1893 - 2020 |
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December
16, 2020 |
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Record |
Record |
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| Observed Daily Data |
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Observed |
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2019 |
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Normal |
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Depart |
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Highest |
Lowest |
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| Maximum Temperature |
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29 |
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33 |
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42 |
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-13 |
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62 |
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in |
1971 |
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18 |
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in |
1910 |
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| Minimum
Temperature |
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19 |
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30 |
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28 |
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-9 |
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43 |
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in |
1971 |
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6 |
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in |
1910 |
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| Average Temperature |
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24 |
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32 |
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35 |
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-11 |
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53 |
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in |
1971 |
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12 |
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in |
1910 |
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| Precipitation |
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.08 |
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.00 |
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.14 |
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-.06 |
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1.95 |
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in |
1960 |
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| One
Hour |
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.00 |
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.00 |
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.37 |
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in |
1960 |
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| Snow |
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1.3 |
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0.0 |
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0.2 |
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+1.1 |
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6.2 |
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in |
1989 |
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| Snow
Depth |
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0 |
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0 |
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11 |
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in |
1904 |
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| HDD |
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41 |
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33 |
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30 |
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+11 |
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53 |
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in |
1910 |
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12 |
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in |
1971 |
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| 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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0 |
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in |
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| Maximum Dew Point |
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27 |
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22 |
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34 |
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-7 |
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58 |
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in |
1971 |
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4 |
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in |
1961 |
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| Minimum
Dew Point |
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2 |
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19 |
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18 |
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-16 |
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35 |
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in |
2018 |
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-10 |
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in |
1961 |
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| Average Dew Point |
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15 |
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21 |
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26 |
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-11 |
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45 |
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in |
1982 |
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-3 |
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in |
1961 |
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| Maximum Humidity |
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94% |
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68% |
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86% |
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+8% |
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100% |
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in |
2005 |
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52% |
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in |
1951 |
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| Minimum
Humidity |
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42% |
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57% |
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58% |
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-16% |
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89% |
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in |
2014 |
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22% |
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in |
1961 |
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| Average Humidity |
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68% |
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63% |
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72% |
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-4% |
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93% |
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in |
2014 |
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39% |
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in |
1988 |
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| Maximum Barometer |
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30.49 |
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30.26 |
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30.14 |
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+00.35 |
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30.62 |
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in |
1994 |
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29.54 |
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in |
1987 |
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| Minimum
Barometer |
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30.06 |
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30.08 |
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29.78 |
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+00.28 |
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30.49 |
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in |
1994 |
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28.87 |
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in |
1972 |
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| Average Barometer |
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30.28 |
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30.17 |
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29.96 |
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+00.31 |
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30.56 |
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in |
1994 |
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29.25 |
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in |
1987 |
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| Average Wind |
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8.0 |
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7.8 |
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8.7 |
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-0.7 |
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17.0 |
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in |
1972 |
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1.2 |
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in |
1986 |
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| Direction |
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ENE |
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WNW |
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WNW |
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W |
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E |
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| High Wind Gust |
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29 |
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26 |
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28 |
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+1 |
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56 |
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in |
1927 |
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10 |
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in |
1986 |
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| Direction |
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ESE |
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WNW |
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WNW |
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W |
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W |
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| High Heat Index |
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| Wind Chill |
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11 |
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22 |
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18 |
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-7 |
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-9 |
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in |
1951 |
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| Maximum Water Temp |
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45.9 |
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41.8 |
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45.7 |
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+0.2 |
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51.3 |
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in |
2011 |
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39.4 |
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in |
2010 |
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| Minimum
Water Temp |
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44.4 |
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39.7 |
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43.3 |
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+1.1 |
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49.8 |
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in |
2015 |
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36.7 |
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in |
2010 |
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| Average Water Temp |
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45.2 |
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40.8 |
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44.5 |
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+0.6 |
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50.5 |
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in |
2011 |
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38.1 |
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in |
2010 |
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| Sunrise/ AM Twilight |
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7:06:04 AM |
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6:34:46 AM |
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| Sunset /
PM Twilight |
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4:16:59 PM |
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4:48:17 PM |
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| Length Of Day |
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9:10:55 |
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| Special Conditions |
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Dense Fog |
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| Comments |
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December
16, 2020 |
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|
Record |
Record |
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| Month-to-Date Summary |
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Observed |
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2019 |
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Normal |
Depart |
Highest |
Lowest |
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| Avg Maximum Temperature |
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45.3 |
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43.8 |
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44.3 |
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+1.0 |
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54.4 |
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in |
2015 |
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30.4 |
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in |
1904 |
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| Avg
Minimum Temperature |
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33.2 |
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30.4 |
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30.6 |
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+2.6 |
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42.1 |
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in |
2015 |
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16.3 |
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in |
1989 |
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| Average Temperature |
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39.4 |
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37.4 |
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37.4 |
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+2.1 |
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48.6 |
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in |
2015 |
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24.9 |
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in |
1904 |
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| Total
Precipitation |
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3.55 |
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4.82 |
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2.35 |
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+1.20 |
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7.06 |
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in |
1981 |
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.20 |
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in |
1998 |
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| Total Snow |
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1.3 |
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8.0 |
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3.1 |
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-1.8 |
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19.9 |
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in |
1981 |
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0.0 |
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in |
2015 |
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| Total
HDD |
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409 |
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442 |
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438 |
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-29 |
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642 |
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in |
1904 |
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263 |
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in |
2015 |
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| Total 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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| Avg Maximum Dew Point |
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38.6 |
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38.7 |
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36.2 |
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+2.4 |
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48.6 |
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in |
2015 |
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18.7 |
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in |
1989 |
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| Avg
Minimum Dew Point |
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25.1 |
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22.9 |
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21.1 |
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+3.9 |
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37.7 |
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in |
2015 |
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-1.2 |
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in |
1989 |
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| Average Dew Point |
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32.0 |
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31.2 |
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28.6 |
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+3.4 |
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43.3 |
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in |
2015 |
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8.8 |
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in |
1989 |
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December 16, 2020 |
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Record |
Record |
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| Year-to-Date Summary |
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Observed |
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2019 |
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Normal |
Depart |
Highest |
Lowest |
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| Total Precipitation |
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40.43 |
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54.32 |
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46.33 |
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-5.90 |
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63.81 |
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in |
1983 |
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27.10 |
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in |
1965 |
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| Total
Snow (since Jul 1 20) |
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1.9 |
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8.0 |
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4.2 |
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-2.3 |
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21.1 |
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in |
1898 |
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0.0 |
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in |
2015 |
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| Total HDD (since Jul 1
20) |
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1202 |
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1432 |
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1470 |
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-268 |
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1954 |
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in |
1904 |
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1058 |
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in |
2015 |
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| Total
CDD (since Jan 1) |
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871 |
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731 |
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563 |
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+308 |
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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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| Hour-by-Hour Weather For December 16, 2020 |
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| Climate Weather for December 16 |
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| Weather History For December 16 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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