| Portsmouth Rhode Island
Weather Almanac |
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| Sunday, March 21, 2021 |
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| Clear, Fog Late, Light Winds 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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March
21, 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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59 |
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59 |
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47 |
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+12 |
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71 |
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in |
1921 |
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26 |
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in |
1912 |
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| Minimum
Temperature |
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33 |
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33 |
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32 |
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+1 |
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50 |
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in |
2012 |
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13 |
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in |
1986 |
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| Average Temperature |
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46 |
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46 |
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40 |
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+6 |
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60 |
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in |
2012 |
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23 |
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in |
1986 |
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| Month Avg Max Temperature |
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45.1 |
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52.0 |
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44.0 |
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+1.0 |
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52.0 |
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in |
2020 |
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31.6 |
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in |
1916 |
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| Month Avg
Min Temperature |
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27.3 |
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35.5 |
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29.3 |
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-2.0 |
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36.7 |
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in |
1973 |
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19.8 |
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in |
1916 |
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| Month Average Temperature |
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36.5 |
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44.0 |
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37.0 |
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-0.5 |
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44.2 |
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in |
2010 |
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25.9 |
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in |
1916 |
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| HDD |
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19 |
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19 |
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25 |
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-6 |
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42 |
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in |
1986 |
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5 |
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in |
2012 |
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| Month HDD |
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599 |
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442 |
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589 |
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+10 |
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821 |
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in |
1916 |
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437 |
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in |
2010 |
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| Season HDD |
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4166 |
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4003 |
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4415 |
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-249 |
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5468 |
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in |
1905 |
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3649 |
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in |
2016 |
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| CDD |
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0 |
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0 |
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0 |
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+0 |
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0 |
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in |
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0 |
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in |
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| 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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0 |
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in |
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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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0 |
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in |
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0 |
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in |
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| Maximum Dew Point |
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38 |
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53 |
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36 |
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+2 |
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58 |
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in |
2012 |
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7 |
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in |
1988 |
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| Minimum
Dew Point |
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21 |
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12 |
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21 |
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+0 |
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50 |
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in |
2012 |
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-11 |
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in |
1988 |
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| Average Dew Point |
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30 |
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33 |
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29 |
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+1 |
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54 |
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in |
2012 |
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-2 |
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in |
1988 |
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| Month Avg Max Dew Point |
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28.7 |
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40.0 |
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33.6 |
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-4.9 |
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41.5 |
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in |
2012 |
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22.0 |
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in |
1960 |
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| Month Avg
Min Dew Point |
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11.0 |
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23.1 |
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18.7 |
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-7.8 |
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29.6 |
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in |
1983 |
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5.7 |
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in |
1950 |
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| Month Average Dew Point |
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19.8 |
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31.6 |
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26.5 |
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-6.6 |
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35.1 |
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in |
2012 |
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15.8 |
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in |
1950 |
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| Precipitation |
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.00 |
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.00 |
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.15 |
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-.15 |
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1.78 |
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in |
1983 |
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| One Hour |
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.00 |
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.00 |
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.79 |
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in |
1983 |
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| Hourly Rate |
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.00 |
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.00 |
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.30 |
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in |
2004 |
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| Month Precipitation |
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1.88 |
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2.24 |
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2.90 |
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-1.02 |
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8.46 |
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in |
1983 |
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.08 |
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in |
1915 |
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| Year Precipitation |
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7.38 |
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8.05 |
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10.00 |
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-2.62 |
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19.23 |
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in |
1979 |
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5.75 |
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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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0.2 |
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-0.2 |
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5.3 |
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in |
1912 |
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| Snow Depth |
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0 |
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0 |
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15 |
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in |
1956 |
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| Month Snow |
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T |
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0.7 |
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4.4 |
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-4.4 |
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27.8 |
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in |
1956 |
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0.0 |
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in |
1947 |
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| Season Snow |
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27.7 |
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12.9 |
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31.7 |
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-4.0 |
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75.0 |
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in |
2005 |
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4.8 |
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in |
1998 |
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March
21, 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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95% |
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85% |
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87% |
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+8% |
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100% |
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in |
2012 |
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52% |
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in |
1988 |
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| Minimum
Humidity |
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25% |
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22% |
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52% |
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-27% |
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93% |
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in |
2003 |
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19% |
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in |
1991 |
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| Average Humidity |
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60% |
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54% |
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70% |
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-10% |
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97% |
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in |
2003 |
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37% |
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in |
1985 |
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| Maximum Barometer |
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30.57 |
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30.45 |
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30.06 |
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+00.51 |
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30.80 |
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in |
2007 |
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29.38 |
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in |
1958 |
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| Minimum
Barometer |
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30.48 |
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29.83 |
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29.74 |
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+00.74 |
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30.57 |
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in |
2007 |
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29.03 |
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in |
1958 |
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| Average Barometer |
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30.53 |
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30.14 |
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29.90 |
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+00.63 |
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30.69 |
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in |
2007 |
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29.21 |
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in |
1958 |
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| Average Wind |
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3.8 |
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10.9 |
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8.6 |
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-4.8 |
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18.8 |
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in |
2008 |
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1.8 |
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in |
2005 |
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| Direction |
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S |
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NW |
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WNW |
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WNW |
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WNW |
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| High Wind Gust |
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16 |
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31 |
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27 |
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-11 |
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45 |
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in |
1980 |
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11 |
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in |
1952 |
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| Direction |
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SSW |
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NNW |
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NNE |
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ESE |
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SSE |
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| High Heat Index |
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| Wind Chill |
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33 |
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28 |
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23 |
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+10 |
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-4 |
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in |
1986 |
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| Maximum Water Temp |
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39.2 |
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40.6 |
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40.8 |
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-1.6 |
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49.8 |
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in |
2012 |
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36.0 |
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in |
2015 |
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| Minimum
Water Temp |
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37.8 |
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39.4 |
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38.9 |
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-1.1 |
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47.5 |
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in |
2012 |
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34.7 |
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in |
2015 |
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| Average Water Temp |
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38.5 |
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40.0 |
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39.9 |
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-1.4 |
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48.7 |
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in |
2012 |
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35.4 |
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in |
2015 |
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| Sunrise/ AM Twilight |
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6:44:47 AM |
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6:17:13 AM |
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| Sunset /
PM Twilight |
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6:59:23 PM |
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7:26:57 PM |
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| Length Of Day |
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12:14:36 |
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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 March 21, 2021 |
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| Climate Weather for March 21 |
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| Weather History For March 21 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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