| Portsmouth Rhode Island
Weather Almanac |
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| Tuesday, April 21, 2020 |
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| Clear early then Cloudy w/Afternoon Rain, Windy and Much
Colder |
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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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April 21, 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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49 |
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64 |
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57 |
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-8 |
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84 |
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in |
1957 |
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40 |
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in |
1940 |
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| Minimum
Temperature |
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32 |
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48 |
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41 |
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-9 |
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53 |
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in |
2012 |
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24 |
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in |
1897 |
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| Average Temperature |
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41 |
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56 |
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49 |
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-8 |
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67 |
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in |
1957 |
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36 |
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in |
1908 |
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| Precipitation |
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.22 |
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.14 |
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.15 |
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+.07 |
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3.19 |
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in |
1991 |
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| One Hour |
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.08 |
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.08 |
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.39 |
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in |
2009 |
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| Snow |
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0.0 |
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0.0 |
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0.0 |
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+0.0 |
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0.2 |
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in |
1947 |
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| Snow
Depth |
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0 |
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0 |
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1 |
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in |
1904 |
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| HDD |
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24 |
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9 |
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16 |
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+8 |
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29 |
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in |
1908 |
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0 |
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in |
1957 |
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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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2 |
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in |
1957 |
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| Maximum Dew Point |
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45 |
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61 |
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44 |
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+1 |
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62 |
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in |
1987 |
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20 |
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in |
1981 |
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| Minimum
Dew Point |
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27 |
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48 |
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30 |
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-3 |
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50 |
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in |
2012 |
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5 |
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in |
1981 |
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| Average Dew Point |
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36 |
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55 |
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37 |
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-1 |
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55 |
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in |
2019 |
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13 |
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in |
1981 |
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| Maximum Humidity |
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88% |
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98% |
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88% |
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+0% |
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100% |
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in |
2017 |
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56% |
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in |
1981 |
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| Minimum
Humidity |
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55% |
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89% |
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45% |
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+10% |
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92% |
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in |
2009 |
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15% |
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in |
1980 |
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| Average Humidity |
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72% |
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94% |
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66% |
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+5% |
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95% |
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in |
2017 |
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39% |
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in |
1981 |
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| Maximum Barometer |
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29.72 |
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30.14 |
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30.10 |
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-00.38 |
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30.66 |
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in |
2013 |
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29.54 |
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in |
1971 |
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| Minimum
Barometer |
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29.39 |
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29.96 |
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29.84 |
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-00.45 |
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30.29 |
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in |
2008 |
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29.11 |
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in |
1991 |
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| Average Barometer |
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29.56 |
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30.05 |
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29.97 |
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-00.42 |
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30.43 |
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in |
2013 |
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29.38 |
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in |
1991 |
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| Average Wind |
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10.5 |
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6.4 |
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7.6 |
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+2.9 |
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14.3 |
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in |
1991 |
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3.1 |
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in |
1997 |
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| Direction |
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S |
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SE |
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SSW |
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NE |
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SSW |
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| High Wind Gust |
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32 |
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28 |
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25 |
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+7 |
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42 |
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in |
1945 |
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15 |
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in |
1955 |
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| Direction |
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WNW |
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SE |
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SSW |
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NW |
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SSE |
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| High Heat Index |
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| Wind Chill |
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31 |
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46 |
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35 |
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-4 |
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18 |
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in |
1981 |
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| Maximum Water Temp |
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41.2 |
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45.7 |
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48.7 |
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-7.5 |
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53.8 |
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in |
2012 |
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41.2 |
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in |
2020 |
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| Minimum
Water Temp |
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40.3 |
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43.7 |
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45.1 |
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-4.8 |
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50.8 |
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in |
2012 |
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40.3 |
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in |
2020 |
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| Average Water Temp |
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40.8 |
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44.7 |
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46.9 |
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-6.1 |
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52.3 |
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in |
2012 |
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40.8 |
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in |
2020 |
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| Sunrise/ AM Twilight |
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5:54:05 AM |
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5:24:49 AM |
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| Sunset /
PM Twilight |
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7:33:18 PM |
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8:02:34 PM |
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| Length Of Day |
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13:37:17 |
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| Special Conditions |
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Fog |
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| Comments |
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April 21, 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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52.4 |
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55.9 |
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53.9 |
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-1.5 |
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61.7 |
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in |
1976 |
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45.8 |
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in |
1907 |
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| Avg
Minimum Temperature |
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37.7 |
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40.7 |
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37.7 |
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+0.0 |
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42.9 |
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in |
2002 |
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31.6 |
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in |
1943 |
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| Average Temperature |
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45.0 |
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48.3 |
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46.0 |
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-0.9 |
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51.7 |
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in |
1945 |
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39.1 |
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in |
1907 |
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| Total
Precipitation |
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3.98 |
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3.83 |
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3.28 |
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+.70 |
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9.19 |
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in |
1983 |
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.08 |
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in |
1966 |
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| Total Snow |
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0.0 |
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0.0 |
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1.0 |
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-1.0 |
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9.6 |
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in |
1996 |
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0.0 |
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in |
2019 |
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| Total
HDD |
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414 |
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346 |
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397 |
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+17 |
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540 |
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in |
1907 |
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275 |
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in |
1945 |
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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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13 |
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in |
1976 |
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0 |
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in |
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| Avg Maximum Dew Point |
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41.9 |
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45.5 |
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40.6 |
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+1.3 |
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47.5 |
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in |
1987 |
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32.1 |
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in |
1965 |
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| Avg
Minimum Dew Point |
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29.0 |
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31.1 |
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27.4 |
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+1.6 |
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35.8 |
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in |
2010 |
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18.0 |
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in |
1982 |
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| Average Dew Point |
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35.4 |
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38.3 |
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34.0 |
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+1.4 |
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41.1 |
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in |
2010 |
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26.8 |
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in |
1975 |
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April 21, 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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14.74 |
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16.34 |
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15.65 |
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-.91 |
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28.46 |
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in |
1983 |
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6.71 |
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in |
2012 |
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| Total
Snow (since Jul 1 18) |
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12.9 |
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21.1 |
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31.8 |
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-18.9 |
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84.1 |
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in |
1996 |
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5.0 |
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in |
1998 |
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| Total HDD (since Jul 1
18) |
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4639 |
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5087 |
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5174 |
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-535 |
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6124 |
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in |
1918 |
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4151 |
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in |
2012 |
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| Total
CDD (since Jan 1) |
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0 |
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0 |
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0 |
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+0 |
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13 |
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in |
1976 |
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0 |
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in |
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| Hour-by-Hour Weather For April 21, 2020 |
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| Climate Weather for April 21 |
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| Weather History For April 21 |
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| Weather Calendar |
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