| Portsmouth Rhode Island
Weather Almanac |
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| Friday, March 12, 2021 |
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| Mostly Cloudy early, Partly Cloudy Day to Clear PM, Breezy
and Very 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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March
12, 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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49 |
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44 |
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+20 |
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65 |
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in |
1973 |
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26 |
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in |
2017 |
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| Minimum
Temperature |
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45 |
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32 |
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30 |
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+15 |
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45 |
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in |
2021 |
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9 |
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in |
1900 |
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| Average Temperature |
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55 |
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41 |
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37 |
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+18 |
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55 |
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in |
2021 |
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19 |
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in |
1900 |
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| Month Avg Max Temperature |
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45.4 |
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51.8 |
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42.7 |
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+2.8 |
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52.5 |
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in |
1894 |
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32.1 |
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in |
1916 |
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| Month
Avg Min Temperature |
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27.4 |
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34.8 |
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28.2 |
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-0.8 |
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36.4 |
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in |
1973 |
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18.2 |
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in |
1950 |
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| Month Average
Temperature |
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36.8 |
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43.5 |
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35.8 |
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+1.0 |
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44.2 |
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in |
1973 |
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26.3 |
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in |
1916 |
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| HDD |
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10 |
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24 |
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28 |
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-18 |
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46 |
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in |
1900 |
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10 |
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in |
2021 |
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| Month HDD |
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339 |
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258 |
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351 |
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-12 |
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464 |
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in |
1916 |
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250 |
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in |
1973 |
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| Season HDD |
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3906 |
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3819 |
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4177 |
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-271 |
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5210 |
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in |
1918 |
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3462 |
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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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45 |
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40 |
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34 |
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+11 |
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53 |
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in |
1973 |
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1 |
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in |
1984 |
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| Minimum
Dew Point |
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19 |
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31 |
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19 |
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+0 |
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44 |
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in |
1982 |
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-10 |
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in |
1984 |
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| Average Dew Point |
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32 |
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36 |
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27 |
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+5 |
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47 |
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in |
1982 |
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-5 |
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in |
1984 |
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| Month Avg Max Dew Point |
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28.8 |
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38.7 |
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32.8 |
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-3.9 |
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41.4 |
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in |
1973 |
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17.9 |
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in |
1960 |
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| Month
Avg Min Dew Point |
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12.2 |
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23.3 |
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17.5 |
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-5.3 |
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30.6 |
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in |
1973 |
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2.4 |
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in |
1950 |
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| Month Average Dew Point |
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20.5 |
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31.0 |
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25.5 |
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-5.0 |
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36.0 |
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in |
1973 |
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11.6 |
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in |
1960 |
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| Precipitation |
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T |
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.00 |
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.14 |
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.00 |
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2.05 |
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in |
1985 |
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| One Hour |
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T |
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.00 |
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.59 |
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in |
1959 |
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| Hourly Rate |
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.00 |
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.00 |
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.88 |
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in |
2013 |
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| Month Precipitation |
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.45 |
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.39 |
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1.59 |
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-1.14 |
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5.49 |
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in |
1983 |
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T |
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in |
1894 |
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| Year Precipitation |
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5.95 |
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6.20 |
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8.69 |
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-2.74 |
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18.97 |
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in |
1979 |
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3.23 |
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in |
1980 |
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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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7.6 |
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in |
1939 |
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| Snow Depth |
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0 |
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0 |
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12 |
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in |
1941 |
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| Month Snow |
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0.0 |
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0.6 |
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2.6 |
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-2.6 |
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18.9 |
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in |
1941 |
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0.0 |
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in |
2021 |
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| Season Snow |
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27.7 |
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12.8 |
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29.9 |
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-2.2 |
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75.0 |
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in |
2005 |
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4.7 |
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in |
1998 |
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March
12, 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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83% |
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94% |
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83% |
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+0% |
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100% |
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in |
2013 |
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44% |
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in |
1984 |
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| Minimum
Humidity |
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18% |
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61% |
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48% |
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-30% |
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91% |
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in |
2013 |
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18% |
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in |
2021 |
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| Average Humidity |
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51% |
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78% |
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65% |
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-15% |
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96% |
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in |
2013 |
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33% |
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in |
1974 |
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| Maximum Barometer |
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30.09 |
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30.24 |
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30.15 |
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-00.06 |
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30.72 |
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in |
1995 |
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29.30 |
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in |
1983 |
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| Minimum
Barometer |
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29.88 |
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30.11 |
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29.80 |
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+00.08 |
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30.56 |
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in |
1995 |
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28.90 |
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in |
1983 |
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| Average Barometer |
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29.99 |
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30.18 |
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29.98 |
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+00.01 |
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30.64 |
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in |
1995 |
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29.10 |
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in |
1983 |
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| Average Wind |
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9.0 |
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6.7 |
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8.3 |
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+0.7 |
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18.0 |
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in |
1980 |
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2.8 |
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in |
1964 |
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| Direction |
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NW |
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SE |
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WNW |
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WNW |
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SW |
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| High Wind Gust |
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38 |
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21 |
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27 |
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+11 |
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47 |
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in |
1980 |
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12 |
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in |
1964 |
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| Direction |
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NW |
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ESE |
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NNW |
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W |
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S |
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| High Heat Index |
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| Wind Chill |
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40 |
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31 |
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20 |
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+20 |
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-8 |
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in |
1984 |
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| Maximum Water Temp |
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40.7 |
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39.2 |
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39.5 |
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+1.2 |
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45.8 |
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in |
2012 |
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35.1 |
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in |
2005 |
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| Minimum
Water Temp |
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38.2 |
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37.8 |
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37.9 |
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+0.3 |
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43.7 |
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in |
2012 |
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33.6 |
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in |
2017 |
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| Average Water Temp |
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39.5 |
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38.5 |
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38.7 |
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+0.7 |
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44.8 |
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in |
2012 |
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34.8 |
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in |
2005 |
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| Sunrise/ AM Twilight |
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5:59:54 AM |
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5:32:24 AM |
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| Sunset /
PM Twilight |
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5:49:27 PM |
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6:16:57 PM |
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| Length Of Day |
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11:49:33 |
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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 March 12, 2021 |
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| Climate Weather for March 12 |
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| Weather History For March 12 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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