| Portsmouth Rhode Island Weather Almanac |
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| Saturday,
September 25, 2021 |
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| Partly Cloudy
AM, Mostly Cloudy Day, Cloudy and Heavy Shower & Fog PM, Light Winds
& Warm |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2021 |
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September 25, 2021 |
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Record |
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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 |
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Lowest |
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| Maximum Temperature |
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77 |
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81 |
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69 |
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+8 |
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86 |
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in |
1920 |
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57 |
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in |
1977 |
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| Minimum
Temperature |
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60 |
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59 |
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55 |
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+5 |
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67 |
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in |
2011 |
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40 |
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in |
1963 |
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| Average Temperature |
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69 |
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70 |
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62 |
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+7 |
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75 |
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in |
1926 |
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50 |
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in |
1950 |
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| Month Avg Max Temperature |
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75.7 |
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74.6 |
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72.9 |
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+2.8 |
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79.1 |
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in |
1983 |
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67.5 |
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in |
1963 |
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| Month Avg
Min Temperature |
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61.5 |
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56.9 |
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58.1 |
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+3.4 |
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63.4 |
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in |
1961 |
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51.9 |
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in |
1962 |
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| Month Average
Temperature |
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68.9 |
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66.0 |
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65.5 |
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+3.4 |
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71.2 |
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in |
1961 |
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60.2 |
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in |
1963 |
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| High
Heat Index |
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77 |
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82 |
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69 |
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+8 |
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83 |
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in |
2017 |
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| Low Wind Chill |
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37 |
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in |
1950 |
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| HDD |
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0 |
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0 |
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4 |
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-4 |
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15 |
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in |
1950 |
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0 |
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in |
2021 |
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| Month HDD |
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2 |
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56 |
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49 |
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-47 |
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132 |
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in |
1963 |
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2 |
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in |
2021 |
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| Season HDD |
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11 |
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56 |
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56 |
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-45 |
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159 |
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in |
1956 |
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7 |
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in |
2015 |
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| CDD |
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4 |
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5 |
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1 |
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+3 |
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10 |
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in |
1926 |
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0 |
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in |
2019 |
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| Month CDD |
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99 |
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82 |
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61 |
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+38 |
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171 |
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in |
1961 |
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7 |
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in |
1893 |
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| Year CDD |
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782 |
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848 |
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598 |
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+184 |
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848 |
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in |
2020 |
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283 |
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in |
1902 |
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| Maximum Dew Point |
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66 |
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66 |
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61 |
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+5 |
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71 |
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in |
2011 |
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38 |
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in |
1950 |
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| Minimum
Dew Point |
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58 |
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57 |
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50 |
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+8 |
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66 |
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in |
2011 |
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28 |
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in |
1950 |
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| Average Dew Point |
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62 |
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62 |
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56 |
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+6 |
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69 |
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in |
2011 |
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33 |
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in |
1950 |
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| Month Avg Max Dew Point |
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67.5 |
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61.5 |
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63.3 |
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+4.2 |
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67.5 |
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in |
2021 |
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55.8 |
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in |
1967 |
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| Month Avg
Min Dew Point |
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58.0 |
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49.7 |
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53.6 |
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+4.4 |
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59.1 |
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in |
1961 |
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45.2 |
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in |
1967 |
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| Month Average Dew Point |
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63.0 |
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55.8 |
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58.4 |
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+4.5 |
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63.3 |
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in |
1961 |
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50.5 |
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in |
1967 |
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| Precipitation |
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.23 |
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.00 |
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.13 |
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+.10 |
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2.44 |
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in |
1991 |
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| One Hour |
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.22 |
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.00 |
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.64 |
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in |
1961 |
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| Hourly Rate |
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2.97 |
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.00 |
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2.97 |
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in |
2021 |
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| Month Precipitation |
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8.97 |
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.66 |
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3.10 |
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+5.87 |
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10.15 |
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in |
1961 |
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.31 |
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in |
1959 |
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| Year Precipitation |
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38.07 |
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24.69 |
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32.38 |
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+5.69 |
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48.03 |
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in |
1998 |
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17.64 |
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in |
1957 |
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| Snow |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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in |
#N/A |
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| Snow Depth |
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#N/A |
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#N/A |
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#N/A |
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in |
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| Month Snow |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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in |
#N/A |
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#N/A |
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in |
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| Season Snow |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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in |
#N/A |
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#N/A |
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in |
#N/A |
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September
25, 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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99% |
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96% |
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92% |
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+7% |
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100% |
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in |
2018 |
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74% |
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in |
1964 |
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| Minimum
Humidity |
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62% |
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50% |
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57% |
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+5% |
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93% |
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in |
2001 |
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29% |
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in |
1963 |
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| Average Humidity |
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81% |
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73% |
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75% |
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+6% |
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97% |
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in |
2001 |
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55% |
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in |
1950 |
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| Maximum Barometer |
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30.05 |
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30.13 |
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30.16 |
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-00.11 |
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30.57 |
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in |
2018 |
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29.85 |
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in |
1969 |
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| Minimum
Barometer |
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29.85 |
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30.01 |
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29.94 |
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-00.09 |
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30.40 |
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in |
2008 |
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29.43 |
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in |
1991 |
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| Average Barometer |
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29.95 |
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30.07 |
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30.05 |
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-00.10 |
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30.45 |
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in |
2008 |
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29.66 |
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in |
1991 |
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| Average Wind |
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2.9 |
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4.8 |
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6.1 |
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-3.2 |
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13.4 |
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in |
1958 |
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1.1 |
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in |
1994 |
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| Direction |
|
ENE |
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SW |
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NW |
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SSW |
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S |
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| High Wind Gust |
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12 |
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17 |
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21 |
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-9 |
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44 |
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in |
1991 |
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8 |
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in |
1994 |
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| Direction |
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NNE |
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SW |
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SW |
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SW |
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N |
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| Maximum Water Temp |
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71.2 |
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67.5 |
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67.0 |
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+4.2 |
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71.2 |
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in |
2021 |
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64.0 |
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in |
1997 |
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| Minimum
Water Temp |
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70.2 |
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65.1 |
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65.2 |
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+5.0 |
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70.2 |
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in |
2021 |
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61.7 |
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in |
1997 |
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| Average Water Temp |
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70.7 |
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66.3 |
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66.1 |
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+4.6 |
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70.7 |
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in |
2021 |
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62.9 |
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in |
1997 |
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| Sunrise/ AM Twilight |
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6:34:53 AM |
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6:08:42 AM |
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| Sunset /
PM Twilight |
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6:38:38 PM |
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7:04:49 PM |
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| Length Of Day |
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12:03:45 |
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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 September 25, 2021 |
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| Climate Weather for September 25 |
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| Weather History For September 25 |
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| Weather Calendar |
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| Back
To Weather Stat Page |
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