| Portsmouth Rhode Island Weather Almanac |
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| Wednesday,
March 12, 2025 |
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| Clear early,
Partly Cloudy Day to Mostly Cloudy PM, Breezy, Continued Warm |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2025 |
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March 12, 2025 |
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Record |
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Record |
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| Observed Daily Data |
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2025 |
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2024 |
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Norm |
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Depart |
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Highest |
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Lowest |
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| Maximum Temperature |
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53 |
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57 |
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44 |
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+9 |
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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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37 |
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35 |
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30 |
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+7 |
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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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45 |
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46 |
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37 |
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+8 |
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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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47.2 |
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49.3 |
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45.3 |
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+1.8 |
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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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29.1 |
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35.9 |
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32.3 |
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-3.3 |
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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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38.4 |
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42.8 |
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38.8 |
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-0.3 |
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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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| High Heat Index |
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76 |
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76 |
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in |
2024 |
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| Low Wind
Chill |
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33 |
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29 |
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21 |
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+12 |
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-6 |
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in |
1998 |
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| Heating Degree Days |
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20 |
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19 |
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28 |
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-8 |
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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 Heating DD |
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319 |
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266 |
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351 |
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-32 |
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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
Heating DD |
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3981 |
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3813 |
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4177 |
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-196 |
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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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| Cooling Degree Days |
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0 |
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0 |
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#REF! |
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#REF! |
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0 |
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in |
1900 |
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0 |
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in |
All |
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| Month Cooling DD |
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| Year Cooling DD |
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| Maximum Dew Point |
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42 |
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32 |
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34 |
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+8 |
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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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18 |
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23 |
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19 |
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-1 |
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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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30 |
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28 |
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27 |
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+3 |
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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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34.2 |
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42.7 |
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32.8 |
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+1.4 |
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42.7 |
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in |
2024 |
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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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18.0 |
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30.5 |
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17.5 |
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+0.5 |
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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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26.3 |
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36.6 |
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25.5 |
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+0.8 |
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36.6 |
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in |
2024 |
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11.6 |
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in |
1960 |
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| Precipitation |
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.00 |
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.00 |
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.14 |
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-.14 |
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2.05 |
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in |
1985 |
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| One Hour
Rain |
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.00 |
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.00 |
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.59 |
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in |
1959 |
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| Half Hour
Rain |
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.00 |
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.00 |
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.23 |
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in |
2022 |
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| Hourly Rain Rate |
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.00 |
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.00 |
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1.22 |
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in |
2022 |
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| Month Precipitation |
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.41 |
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5.02 |
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1.59 |
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-1.18 |
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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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5.59 |
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14.58 |
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8.69 |
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-3.10 |
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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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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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0.6 |
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-0.6 |
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12 |
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in |
1941 |
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0 |
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in |
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| Month Snow |
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0.0 |
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T |
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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 |
2025 |
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| Season Snow |
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11.9 |
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12.7 |
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29.9 |
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-18.0 |
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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, 2025 |
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|
Record |
Record |
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| Observed Daily Data |
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2025 |
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2024 |
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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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93% |
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68% |
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83% |
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+10% |
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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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25% |
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34% |
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48% |
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-23% |
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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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59% |
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51% |
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66% |
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-7% |
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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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30.11 |
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29.84 |
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30.14 |
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-00.03 |
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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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29.77 |
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29.69 |
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29.79 |
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-00.02 |
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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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29.94 |
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29.77 |
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29.97 |
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-00.03 |
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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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7.7 |
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9.5 |
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8.4 |
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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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N |
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NW |
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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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25 |
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31 |
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27 |
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-2 |
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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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NNW |
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NW |
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NNW |
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W |
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S |
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| Maximum Water Temp |
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42.3 |
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42.6 |
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39.9 |
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+2.4 |
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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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40.8 |
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40.5 |
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38.3 |
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+2.5 |
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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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41.6 |
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41.6 |
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39.2 |
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+2.4 |
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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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7:01:20 AM |
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6:32:24 AM |
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| Sunset /
PM Twilight |
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6:48:40 PM |
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7:16:57 PM |
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| Length Of Day |
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11:47:20 |
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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, 2025 |
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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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