| Portsmouth Rhode Island
Weather Almanac |
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| Sunday, December 13, 2020 |
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| Mostly Cloudy, Light Rain & Fog early, Partly Cloudy Day
to Mostly Cloudy PM, Continued Very Warm |
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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
13, 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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59 |
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49 |
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43 |
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+16 |
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60 |
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in |
1983 |
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17 |
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in |
1960 |
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| Minimum
Temperature |
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42 |
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25 |
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29 |
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+13 |
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49 |
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in |
2015 |
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6 |
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in |
1893 |
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| Average Temperature |
|
51 |
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37 |
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36 |
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+15 |
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55 |
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in |
1983 |
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13 |
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in |
1960 |
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| Precipitation |
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.02 |
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.04 |
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.14 |
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-.12 |
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2.43 |
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in |
1915 |
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| One
Hour |
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.01 |
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.04 |
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.27 |
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in |
1983 |
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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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5.4 |
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in |
2007 |
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| Snow
Depth |
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0 |
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3 |
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9 |
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in |
1970 |
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| HDD |
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14 |
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28 |
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29 |
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-15 |
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52 |
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in |
1960 |
|
10 |
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in |
1983 |
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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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53 |
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48 |
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35 |
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+18 |
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58 |
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in |
1983 |
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-1 |
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in |
1960 |
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| Minimum
Dew Point |
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35 |
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21 |
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19 |
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+16 |
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45 |
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in |
1983 |
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-16 |
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in |
1976 |
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| Average Dew Point |
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44 |
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35 |
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27 |
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+17 |
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52 |
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in |
1983 |
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-6 |
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in |
1960 |
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| Maximum Humidity |
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100% |
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95% |
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86% |
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+14% |
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100% |
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in |
2020 |
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57% |
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in |
1989 |
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| Minimum
Humidity |
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75% |
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77% |
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55% |
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+20% |
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90% |
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in |
1965 |
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27% |
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in |
1989 |
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| Average Humidity |
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88% |
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86% |
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71% |
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+17% |
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95% |
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in |
1965 |
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42% |
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in |
1989 |
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| Maximum Barometer |
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29.98 |
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30.67 |
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30.18 |
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-00.20 |
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30.82 |
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in |
1975 |
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29.24 |
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in |
2010 |
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| Minimum
Barometer |
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29.88 |
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30.03 |
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29.85 |
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+00.03 |
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30.53 |
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in |
1994 |
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29.06 |
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in |
2010 |
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| Average Barometer |
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29.93 |
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30.35 |
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30.01 |
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-00.08 |
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30.65 |
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in |
1975 |
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29.15 |
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in |
2010 |
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| Average Wind |
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6.3 |
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7.9 |
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8.1 |
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-1.8 |
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21.4 |
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in |
1976 |
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1.7 |
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in |
1954 |
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| Direction |
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WSW |
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E |
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N |
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NW |
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NW |
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| High Wind Gust |
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23 |
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20 |
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25 |
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-2 |
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62 |
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in |
1976 |
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10 |
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in |
1954 |
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| Direction |
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W |
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SSE |
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N |
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NW |
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NW |
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| High Heat Index |
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| Wind Chill |
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39 |
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19 |
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18 |
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+21 |
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-12 |
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in |
1976 |
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| Maximum Water Temp |
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50.7 |
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41.9 |
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46.6 |
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+4.1 |
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53.1 |
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in |
2011 |
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41.0 |
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in |
2018 |
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| Minimum
Water Temp |
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49.3 |
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39.7 |
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44.1 |
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+5.2 |
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50.5 |
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in |
2015 |
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39.2 |
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in |
2013 |
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| Average Water Temp |
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50.0 |
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40.8 |
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45.3 |
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+4.7 |
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50.8 |
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in |
2011 |
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40.2 |
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in |
2018 |
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| Sunrise/ AM Twilight |
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7:04:02 AM |
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6:32:47 AM |
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| Sunset /
PM Twilight |
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4:16:06 PM |
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4:47:21 PM |
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| Length Of Day |
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9:12:04 |
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| Special Conditions |
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Fog |
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| Comments |
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December
13, 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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47.5 |
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43.2 |
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44.8 |
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+2.7 |
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54.2 |
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in |
1953 |
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30.8 |
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in |
1904 |
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| Avg
Minimum Temperature |
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34.8 |
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28.8 |
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31.1 |
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+3.7 |
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41.3 |
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in |
2015 |
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16.5 |
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in |
1989 |
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| Average Temperature |
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41.4 |
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36.3 |
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37.9 |
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+3.5 |
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47.9 |
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in |
2015 |
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25.5 |
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in |
1904 |
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| Total
Precipitation |
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3.32 |
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3.28 |
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1.93 |
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+1.39 |
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6.64 |
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in |
1936 |
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.04 |
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in |
1911 |
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| Total Snow |
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T |
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8.0 |
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2.5 |
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-2.5 |
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17.0 |
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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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307 |
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373 |
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349 |
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-42 |
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513 |
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in |
1904 |
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222 |
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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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40.4 |
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38.2 |
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36.7 |
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+3.7 |
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47.6 |
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in |
2015 |
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19.2 |
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in |
1989 |
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| Avg
Minimum Dew Point |
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28.0 |
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24.2 |
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21.7 |
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+6.3 |
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37.2 |
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in |
2015 |
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-0.6 |
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in |
1989 |
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| Average Dew Point |
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34.4 |
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30.4 |
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29.2 |
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+5.2 |
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42.6 |
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in |
2015 |
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9.3 |
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in |
1989 |
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December 13, 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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40.20 |
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52.78 |
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45.91 |
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-5.71 |
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62.96 |
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in |
1983 |
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27.07 |
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in |
1965 |
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| Total
Snow (since Jul 1 20) |
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0.6 |
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8.0 |
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3.6 |
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-3.0 |
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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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1100 |
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1363 |
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1381 |
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-281 |
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1825 |
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in |
1904 |
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1017 |
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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 13, 2020 |
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| Climate Weather for December 13 |
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| Weather History For December 13 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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