| Portsmouth Rhode Island
Weather Almanac |
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| Friday, April 30, 2021 |
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| Mostly Cloudy, Light Rain & Fog early then Partly Cloudy,
Very Windy 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
30, 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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64 |
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52 |
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60 |
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+4 |
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83 |
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in |
1942 |
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42 |
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in |
1909 |
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| Minimum
Temperature |
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48 |
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44 |
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44 |
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+4 |
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55 |
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in |
1974 |
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29 |
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in |
1992 |
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| Average Temperature |
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56 |
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48 |
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52 |
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+4 |
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66 |
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in |
1942 |
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38 |
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in |
1909 |
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| Month Avg Max Temperature |
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57.0 |
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52.2 |
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55.2 |
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+1.8 |
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61.1 |
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in |
1976 |
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48.8 |
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in |
1907 |
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| Month Avg
Min Temperature |
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39.9 |
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37.6 |
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39.4 |
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+0.5 |
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43.0 |
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in |
2010 |
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34.1 |
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in |
1943 |
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| Month Average
Temperature |
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48.7 |
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45.1 |
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47.6 |
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+1.1 |
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51.9 |
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in |
2010 |
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42.3 |
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in |
1907 |
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| HDD |
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9 |
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17 |
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13 |
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-4 |
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27 |
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in |
1909 |
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0 |
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in |
1974 |
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| Month HDD |
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489 |
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596 |
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523 |
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-34 |
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682 |
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in |
1907 |
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392 |
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in |
2010 |
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| Season HDD |
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4809 |
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4821 |
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5173 |
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-364 |
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6252 |
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in |
1904 |
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4289 |
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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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1 |
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in |
1942 |
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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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55 |
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48 |
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48 |
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+7 |
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58 |
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in |
1994 |
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28 |
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in |
1967 |
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| Minimum
Dew Point |
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35 |
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38 |
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35 |
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+0 |
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49 |
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in |
1974 |
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9 |
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in |
1978 |
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| Average Dew Point |
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45 |
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43 |
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42 |
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+3 |
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52 |
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in |
1996 |
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21 |
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in |
1978 |
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| Month Avg Max Dew Point |
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43.4 |
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41.7 |
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42.9 |
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+0.5 |
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47.6 |
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in |
2017 |
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34.3 |
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in |
1965 |
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| Month Avg
Min Dew Point |
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30.6 |
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29.3 |
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29.7 |
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+0.9 |
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37.3 |
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in |
2017 |
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20.5 |
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in |
1982 |
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| Month Average Dew Point |
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37.0 |
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35.5 |
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36.3 |
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+0.7 |
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42.4 |
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in |
2017 |
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28.9 |
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in |
1975 |
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| Precipitation |
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.01 |
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.34 |
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.14 |
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-.13 |
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2.00 |
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in |
1902 |
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| One Hour |
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.01 |
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.17 |
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.36 |
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in |
2005 |
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| Hourly Rate |
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.00 |
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.24 |
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1.71 |
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in |
2005 |
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| Month Precipitation |
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3.28 |
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5.44 |
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4.27 |
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-.99 |
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11.94 |
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in |
1983 |
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.78 |
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in |
1942 |
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| Year Precipitation |
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11.70 |
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16.20 |
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15.73 |
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-4.03 |
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31.21 |
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in |
1983 |
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7.53 |
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in |
1985 |
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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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0.0 |
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in |
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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 |
1909 |
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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
30, 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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98% |
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94% |
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87% |
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+11% |
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100% |
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in |
2005 |
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52% |
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in |
1978 |
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| Minimum
Humidity |
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45% |
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77% |
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47% |
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-2% |
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97% |
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in |
1990 |
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17% |
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in |
1957 |
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| Average Humidity |
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72% |
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86% |
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67% |
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+5% |
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99% |
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in |
1990 |
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36% |
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in |
1978 |
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| Maximum Barometer |
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29.48 |
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30.34 |
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30.10 |
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-00.62 |
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30.71 |
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in |
1934 |
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29.48 |
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in |
2021 |
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| Minimum
Barometer |
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29.25 |
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29.98 |
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29.86 |
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-00.61 |
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30.35 |
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in |
2006 |
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29.25 |
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in |
2021 |
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| Average Barometer |
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29.37 |
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30.16 |
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29.98 |
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-00.62 |
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30.39 |
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in |
2006 |
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29.37 |
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in |
2021 |
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| Average Wind |
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13.3 |
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13.4 |
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7.2 |
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+6.1 |
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16.3 |
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in |
1987 |
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3.4 |
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in |
2013 |
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| Wind Direction |
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WNW |
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ESE |
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S |
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WNW |
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S |
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| High Wind Gust |
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44 |
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29 |
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24 |
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+20 |
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45 |
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in |
1963 |
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13 |
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in |
2019 |
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| Gust Direction |
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WNW |
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SE |
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S |
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SSE |
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NW |
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| High Heat Index |
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| Wind Chill |
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42 |
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37 |
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38 |
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+4 |
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21 |
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in |
1992 |
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| Maximum Water Temp |
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48.7 |
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41.9 |
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50.5 |
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-1.8 |
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55.6 |
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in |
2012 |
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41.9 |
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in |
2020 |
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| Minimum
Water Temp |
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46.6 |
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40.8 |
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47.4 |
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-0.8 |
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52.3 |
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in |
2007 |
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40.8 |
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in |
2020 |
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| Average Water Temp |
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47.7 |
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41.4 |
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49.0 |
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-1.3 |
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53.8 |
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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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5:41:35 AM |
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5:11:29 AM |
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| Sunset /
PM Twilight |
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7:43:01 PM |
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8:13:08 PM |
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| Length Of Day |
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13:59:37 |
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| Special Conditions |
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Fog |
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| Comments |
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| Hour-by-Hour Weather For April 30, 2021 |
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| Climate Weather for April 30 |
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| Weather History For April 30 |
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| Weather Calendar |
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