| Portsmouth Rhode Island
Weather Almanac |
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| Tuesday, April 20, 2021 |
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| Clear, Windy Afternoon and Continued Warm |
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| Climate Normal
Period |
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Climate Record Period |
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| 1991- 2020 |
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1893 - 2021 |
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April
20, 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 Temperature |
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65 |
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54 |
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57 |
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+8 |
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83 |
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in |
1976 |
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38 |
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in |
1904 |
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| Minimum
Temperature |
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43 |
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33 |
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41 |
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+2 |
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55 |
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in |
1952 |
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21 |
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in |
1897 |
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| Average Temperature |
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54 |
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44 |
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49 |
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+5 |
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67 |
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in |
1976 |
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32 |
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in |
1897 |
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| Month Avg Max Temperature |
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55.8 |
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52.6 |
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53.5 |
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+2.3 |
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61.2 |
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in |
1976 |
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45.7 |
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in |
1907 |
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| Month Avg
Min Temperature |
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38.7 |
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38.0 |
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38.0 |
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+0.7 |
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42.8 |
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in |
2002 |
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31.5 |
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in |
1943 |
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| Month Average Temperature |
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47.5 |
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45.5 |
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46.1 |
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+1.5 |
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52.0 |
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in |
1945 |
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39.3 |
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in |
1907 |
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| HDD |
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11 |
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21 |
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16 |
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-5 |
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33 |
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in |
1897 |
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0 |
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in |
1976 |
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| Month HDD |
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350 |
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390 |
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379 |
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-29 |
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514 |
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in |
1907 |
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261 |
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in |
1945 |
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| Season HDD |
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4670 |
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4615 |
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5029 |
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-359 |
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6105 |
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in |
1918 |
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4142 |
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in |
2012 |
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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 |
1976 |
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0 |
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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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13 |
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in |
1976 |
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0 |
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in |
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| Year 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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| Maximum Dew Point |
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50 |
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43 |
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44 |
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+6 |
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60 |
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in |
2019 |
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22 |
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in |
1988 |
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| Minimum
Dew Point |
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39 |
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27 |
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31 |
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+8 |
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53 |
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in |
2019 |
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8 |
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in |
2007 |
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| Average Dew Point |
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45 |
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35 |
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38 |
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+7 |
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57 |
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in |
2019 |
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17 |
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in |
1988 |
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| Month Avg Max Dew Point |
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42.6 |
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41.7 |
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41.3 |
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+1.4 |
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47.1 |
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in |
2002 |
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31.9 |
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in |
1965 |
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| Month Avg
Min Dew Point |
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30.4 |
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29.1 |
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27.9 |
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+2.5 |
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35.8 |
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in |
2010 |
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18.1 |
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in |
1982 |
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| Month Average Dew Point |
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36.5 |
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35.4 |
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34.6 |
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+1.9 |
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41.0 |
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in |
2010 |
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26.3 |
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in |
1992 |
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| Precipitation |
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.00 |
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.00 |
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.14 |
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-.14 |
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1.34 |
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in |
1911 |
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| One Hour |
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.00 |
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.00 |
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.36 |
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in |
1978 |
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| Hourly Rate |
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.00 |
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.00 |
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2.06 |
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in |
2019 |
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| Month Precipitation |
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2.65 |
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3.76 |
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2.87 |
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-.22 |
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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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| Year Precipitation |
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11.07 |
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14.52 |
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14.33 |
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-3.26 |
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28.46 |
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in |
1983 |
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6.69 |
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in |
2012 |
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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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0.6 |
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in |
1904 |
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| Snow Depth |
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0 |
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0 |
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T |
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in |
1904 |
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| Month Snow |
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T |
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T |
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0.5 |
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-0.5 |
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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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| Season Snow |
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27.7 |
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12.9 |
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33.5 |
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-5.8 |
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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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April
20, 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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91% |
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81% |
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87% |
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+4% |
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100% |
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in |
2019 |
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51% |
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in |
1988 |
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| Minimum
Humidity |
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48% |
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53% |
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47% |
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+1% |
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96% |
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in |
2019 |
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13% |
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in |
2007 |
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| Average Humidity |
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70% |
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67% |
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67% |
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+2% |
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98% |
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in |
2019 |
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37% |
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in |
1952 |
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| Maximum Barometer |
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29.94 |
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29.70 |
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30.10 |
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-00.16 |
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30.61 |
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in |
1990 |
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29.48 |
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in |
1953 |
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| Minimum
Barometer |
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29.85 |
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29.59 |
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29.85 |
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+00.00 |
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30.33 |
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in |
2014 |
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29.00 |
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in |
1978 |
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| Average Barometer |
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29.90 |
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29.65 |
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29.97 |
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-00.08 |
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30.44 |
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in |
1966 |
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29.33 |
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in |
1983 |
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| Average Wind |
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7.7 |
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7.3 |
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7.7 |
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+0.0 |
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16.0 |
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in |
1975 |
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3.2 |
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in |
1965 |
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| Wind Direction |
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SW |
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NNE |
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S |
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W |
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NNW |
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| High Wind Gust |
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32 |
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20 |
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26 |
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+6 |
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46 |
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in |
1975 |
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15 |
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in |
1976 |
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| Gust Direction |
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SW |
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NE |
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SSE |
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WSW |
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WNW |
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| High Heat Index |
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| Wind Chill |
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43 |
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33 |
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35 |
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+8 |
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19 |
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in |
1988 |
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| Maximum Water Temp |
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50.5 |
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42.3 |
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48.0 |
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+2.5 |
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54.0 |
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in |
2012 |
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42.3 |
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in |
2020 |
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| Minimum
Water Temp |
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48.6 |
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40.5 |
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45.0 |
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+3.6 |
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50.8 |
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in |
2012 |
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40.5 |
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in |
2020 |
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| Average Water Temp |
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49.6 |
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41.4 |
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46.5 |
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+3.0 |
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52.4 |
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in |
2012 |
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41.4 |
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in |
2020 |
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| Sunrise/ AM Twilight |
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5:55:33 AM |
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5:26:22 AM |
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| Sunset /
PM Twilight |
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7:32:13 PM |
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8:01:24 PM |
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| Length Of Day |
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13:34:43 |
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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 April 20, 2021 |
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| Climate Weather for April 20 |
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| Weather History For April 20 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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