| Portsmouth Rhode Island Weather Almanac |
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| Tuesday,
March 18, 2025 |
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| Cloudy early, Partly Cloudy Day to Clear PM,
Windy and Colder |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2025 |
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March 18, 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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51 |
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51 |
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46 |
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+5 |
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68 |
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in |
2022 |
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20 |
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in |
1967 |
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| Minimum
Temperature |
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38 |
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36 |
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31 |
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+7 |
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44 |
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in |
2022 |
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7 |
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in |
1916 |
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| Average Temperature |
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45 |
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44 |
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39 |
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+6 |
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56 |
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in |
2022 |
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15 |
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in |
1967 |
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| Month Avg Max Temperature |
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48.8 |
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51.3 |
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44.7 |
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+4.1 |
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51.8 |
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in |
1973 |
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31.8 |
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in |
1916 |
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| Month Avg
Min Temperature |
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32.3 |
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36.2 |
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31.6 |
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+0.8 |
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37.4 |
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in |
1973 |
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19.6 |
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in |
1916 |
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| Month Average
Temperature |
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40.9 |
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43.9 |
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38.0 |
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+2.9 |
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44.9 |
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in |
1973 |
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25.9 |
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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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29 |
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29 |
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20 |
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+9 |
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-7 |
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in |
1967 |
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| Heating Degree Days |
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20 |
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21 |
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26 |
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-6 |
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50 |
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in |
1967 |
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9 |
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in |
2022 |
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| Month Heating DD |
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434 |
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379 |
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512 |
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-78 |
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703 |
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in |
1916 |
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362 |
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in |
1973 |
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| Season
Heating DD |
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4096 |
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3926 |
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4338 |
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-242 |
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5389 |
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in |
1905 |
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3564 |
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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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38 |
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36 |
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35 |
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+3 |
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57 |
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in |
2022 |
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-6 |
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in |
1967 |
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| Minimum
Dew Point |
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25 |
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22 |
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21 |
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+4 |
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40 |
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in |
2022 |
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-14 |
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in |
1967 |
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| Average Dew Point |
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32 |
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29 |
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28 |
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+4 |
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49 |
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in |
2022 |
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-10 |
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in |
1967 |
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| Month Avg Max Dew Point |
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37.5 |
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42.8 |
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33.3 |
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+4.2 |
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42.8 |
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in |
2024 |
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20.9 |
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in |
1960 |
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| Month Avg
Min Dew Point |
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23.2 |
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30.6 |
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18.3 |
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+4.8 |
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30.6 |
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in |
2024 |
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4.2 |
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in |
1980 |
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| Month Average Dew Point |
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30.5 |
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36.7 |
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26.2 |
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+4.3 |
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36.7 |
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in |
2024 |
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15.1 |
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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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4.26 |
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in |
1968 |
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| One Hour
Rain |
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.00 |
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.00 |
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.67 |
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in |
1968 |
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| Half Hour
Rain |
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.00 |
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.00 |
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.15 |
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in |
2021 |
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| Hourly Rain Rate |
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.00 |
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.00 |
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.73 |
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in |
2021 |
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| Month Precipitation |
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2.61 |
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5.05 |
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2.45 |
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+.16 |
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8.03 |
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in |
1968 |
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.08 |
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in |
1915 |
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| Year Precipitation |
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7.79 |
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14.61 |
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9.55 |
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-1.76 |
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19.20 |
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in |
1979 |
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5.30 |
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in |
1901 |
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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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4.5 |
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in |
1949 |
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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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0.4 |
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-0.4 |
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9 |
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in |
1896 |
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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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3.8 |
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-3.8 |
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20.3 |
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in |
1916 |
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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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31.1 |
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-19.2 |
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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
18, 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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86% |
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76% |
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82% |
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+4% |
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100% |
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in |
2012 |
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45% |
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in |
2015 |
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| Minimum
Humidity |
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44% |
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38% |
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45% |
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-1% |
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90% |
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in |
1968 |
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20% |
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in |
1992 |
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| Average Humidity |
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65% |
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57% |
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64% |
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+1% |
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95% |
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in |
1968 |
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33% |
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in |
1992 |
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| Maximum Barometer |
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30.06 |
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29.69 |
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30.11 |
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-00.05 |
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30.66 |
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in |
2000 |
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29.19 |
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in |
1973 |
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| Minimum
Barometer |
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29.83 |
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29.58 |
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29.80 |
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+00.03 |
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30.33 |
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in |
2000 |
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28.91 |
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in |
1973 |
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| Average Barometer |
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29.95 |
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29.64 |
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29.95 |
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-00.00 |
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30.50 |
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in |
2000 |
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29.05 |
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in |
1973 |
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| Average
Wind |
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12.6 |
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8.5 |
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8.7 |
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+3.9 |
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19.2 |
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in |
1973 |
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1.5 |
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in |
1996 |
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| Direction |
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N |
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NW |
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N |
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W |
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SSE |
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| High
Wind Gust |
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31 |
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23 |
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28 |
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+3 |
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48 |
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in |
1928 |
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11 |
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in |
2004 |
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| Direction |
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N |
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NNW |
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NW |
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NE |
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SE |
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| Maximum Water Temp |
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43.2 |
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45.3 |
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40.9 |
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+2.3 |
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47.1 |
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in |
2012 |
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35.4 |
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in |
2015 |
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| Minimum
Water Temp |
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42.1 |
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44.1 |
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38.9 |
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+3.2 |
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44.9 |
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in |
2012 |
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33.9 |
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in |
2015 |
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| Average Water Temp |
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42.7 |
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44.7 |
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39.9 |
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+2.7 |
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46.0 |
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in |
2012 |
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34.7 |
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in |
2015 |
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| Sunrise/ AM Twilight |
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6:51:15 AM |
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6:22:20 AM |
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| Sunset /
PM Twilight |
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6:55:23 PM |
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7:23:36 PM |
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| Length Of Day |
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12:04:08 |
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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
18, 2025 |
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| Climate Weather for March 18 |
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| Weather History For March 18 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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