| Portsmouth Rhode Island
Weather Almanac |
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| Saturday, April 17, 2021 |
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| Cloudy, Light Rain and Warmer |
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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
17, 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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50 |
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50 |
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56 |
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-6 |
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86 |
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in |
1976 |
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41 |
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in |
2003 |
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| Minimum
Temperature |
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38 |
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34 |
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40 |
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-2 |
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56 |
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in |
2002 |
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24 |
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in |
1908 |
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| Average Temperature |
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44 |
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42 |
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48 |
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-4 |
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71 |
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in |
2002 |
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34 |
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in |
1908 |
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| Month Avg Max Temperature |
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54.6 |
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53.1 |
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53.0 |
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+1.6 |
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61.8 |
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in |
1945 |
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45.4 |
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in |
1907 |
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| Month Avg
Min Temperature |
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38.1 |
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38.5 |
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37.6 |
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+0.5 |
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42.9 |
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in |
2010 |
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30.8 |
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in |
1982 |
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| Month Average
Temperature |
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46.6 |
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46.0 |
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45.6 |
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+1.1 |
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52.2 |
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in |
1945 |
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39.1 |
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in |
1907 |
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| HDD |
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21 |
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23 |
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17 |
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+4 |
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31 |
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in |
1908 |
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0 |
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in |
2012 |
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| Month HDD |
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312 |
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323 |
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330 |
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-18 |
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441 |
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in |
1907 |
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217 |
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in |
1945 |
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| Season HDD |
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4632 |
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4548 |
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4980 |
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-348 |
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6038 |
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in |
1918 |
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4111 |
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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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6 |
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in |
2002 |
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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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6 |
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in |
2002 |
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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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6 |
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in |
2002 |
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0 |
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in |
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| Maximum Dew Point |
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41 |
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37 |
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43 |
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-2 |
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63 |
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in |
1976 |
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18 |
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in |
1980 |
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| Minimum
Dew Point |
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35 |
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22 |
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30 |
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+5 |
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50 |
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in |
2002 |
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3 |
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in |
1985 |
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| Average Dew Point |
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38 |
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30 |
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37 |
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+1 |
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56 |
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in |
2002 |
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14 |
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in |
1980 |
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| Month Avg Max Dew Point |
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41.9 |
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41.8 |
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40.8 |
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+1.1 |
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46.9 |
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in |
2010 |
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30.1 |
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in |
1975 |
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| Month Avg
Min Dew Point |
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29.1 |
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28.9 |
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27.4 |
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+1.7 |
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35.7 |
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in |
2010 |
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15.5 |
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in |
1992 |
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| Month Average Dew Point |
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35.5 |
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35.4 |
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34.1 |
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+1.4 |
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41.3 |
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in |
2010 |
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23.5 |
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in |
1992 |
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| Precipitation |
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.06 |
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.06 |
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.14 |
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-.08 |
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2.33 |
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in |
1954 |
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| One Hour |
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.04 |
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.06 |
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.53 |
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in |
1954 |
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| Hourly Rate |
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.05 |
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.10 |
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.79 |
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in |
2011 |
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| Month Precipitation |
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2.65 |
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2.99 |
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2.45 |
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+.20 |
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6.74 |
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in |
1983 |
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.04 |
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in |
1963 |
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| Year Precipitation |
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11.07 |
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13.75 |
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13.91 |
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-2.84 |
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26.01 |
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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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T |
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in |
1932 |
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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 |
1992 |
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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
17, 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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89% |
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85% |
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+6% |
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100% |
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in |
2001 |
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47% |
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in |
1985 |
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| Minimum
Humidity |
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66% |
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39% |
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46% |
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+20% |
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98% |
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in |
1987 |
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13% |
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in |
2012 |
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| Average Humidity |
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79% |
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64% |
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65% |
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+13% |
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99% |
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in |
1987 |
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32% |
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in |
1985 |
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| Maximum Barometer |
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29.80 |
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30.24 |
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30.05 |
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-00.25 |
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30.74 |
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in |
2014 |
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29.50 |
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in |
2007 |
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| Minimum
Barometer |
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29.57 |
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30.02 |
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29.79 |
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-00.22 |
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30.58 |
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in |
2014 |
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28.92 |
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in |
1929 |
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| Average Barometer |
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29.69 |
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30.13 |
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29.92 |
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-00.23 |
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30.66 |
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in |
2014 |
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29.40 |
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in |
2007 |
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| Average Wind |
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7.4 |
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10.7 |
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8.3 |
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-0.9 |
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15.1 |
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in |
1986 |
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2.7 |
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in |
2005 |
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| Wind Direction |
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NNW |
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W |
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S |
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NE |
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S |
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| High Wind Gust |
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26 |
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28 |
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26 |
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-0 |
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52 |
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in |
1954 |
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12 |
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in |
2001 |
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| Gust Direction |
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NW |
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SSW |
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SSW |
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SSW |
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S |
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| High Heat Index |
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| Wind Chill |
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30 |
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25 |
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33 |
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-3 |
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17 |
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in |
2003 |
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| Maximum Water Temp |
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45.8 |
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42.8 |
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46.8 |
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-1.0 |
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54.0 |
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in |
2012 |
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41.3 |
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in |
2003 |
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| Minimum
Water Temp |
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44.4 |
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40.1 |
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44.0 |
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+0.4 |
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49.6 |
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in |
2012 |
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39.8 |
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in |
2003 |
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| Average Water Temp |
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45.1 |
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41.5 |
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45.4 |
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-0.3 |
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51.8 |
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in |
2012 |
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40.6 |
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in |
2003 |
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| Sunrise/ AM Twilight |
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6:00:04 AM |
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5:31:08 AM |
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| Sunset /
PM Twilight |
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7:28:58 PM |
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7:57:54 PM |
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| Length Of Day |
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13:26:55 |
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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 17, 2021 |
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| Climate Weather for April 17 |
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| Weather History For April 17 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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