| Portsmouth Rhode Island Weather Almanac |
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| Wednesday,
September 1, 2021 |
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| Mostly Cloudy
early then Cloudy, Heavy PM Rain, Fog, Thunderstorm, Remnats of Hurricane Ida |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2021 |
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September 1, 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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71 |
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78 |
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77 |
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-6 |
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91 |
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in |
2010 |
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65 |
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in |
1912 |
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| Minimum
Temperature |
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63 |
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59 |
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62 |
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+1 |
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73 |
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in |
1959 |
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48 |
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in |
1975 |
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| Average Temperature |
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67 |
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69 |
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69 |
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-2 |
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82 |
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in |
1898 |
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57 |
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in |
1912 |
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| Month Avg Max Temperature |
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71.0 |
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78.0 |
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77.0 |
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-6.0 |
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91.0 |
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in |
2010 |
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65.0 |
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in |
1912 |
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| Month Avg
Min Temperature |
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63.0 |
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59.0 |
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62.0 |
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+1.0 |
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73.0 |
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in |
1959 |
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48.0 |
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in |
1975 |
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| Month Average Temperature |
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67.0 |
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69.0 |
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69.0 |
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-2.0 |
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82.0 |
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in |
1898 |
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57.0 |
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in |
1912 |
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| High Heat
Index |
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73 |
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78 |
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78 |
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-5 |
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98 |
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in |
2010 |
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| Low Wind Chill |
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#N/A |
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in |
#N/A |
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| HDD |
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0 |
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0 |
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1 |
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-1 |
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8 |
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in |
1912 |
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0 |
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in |
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| Month HDD |
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0 |
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0 |
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1 |
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-1 |
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8 |
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in |
1912 |
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0 |
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in |
2021 |
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| Season HDD |
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9 |
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0 |
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8 |
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+1 |
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42 |
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in |
1905 |
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0 |
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in |
2020 |
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| CDD |
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2 |
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4 |
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5 |
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-3 |
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17 |
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in |
1898 |
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0 |
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in |
2017 |
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| Month CDD |
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2 |
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4 |
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5 |
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-3 |
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17 |
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in |
1898 |
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0 |
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in |
2017 |
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| Year CDD |
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685 |
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770 |
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542 |
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+143 |
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770 |
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in |
2020 |
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260 |
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in |
1902 |
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| Maximum Dew Point |
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68 |
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65 |
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66 |
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+2 |
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75 |
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in |
2014 |
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45 |
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in |
1970 |
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| Minimum Dew
Point |
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61 |
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57 |
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57 |
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+4 |
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72 |
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in |
1959 |
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34 |
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in |
1991 |
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| Average Dew Point |
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65 |
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61 |
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61 |
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+4 |
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73 |
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in |
2014 |
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41 |
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in |
1991 |
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| Month Avg Max Dew Point |
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68.0 |
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65.0 |
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66.0 |
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+2.0 |
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75.0 |
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in |
2014 |
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45.0 |
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in |
1970 |
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| Month Avg
Min Dew Point |
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61.0 |
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57.0 |
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57.0 |
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+4.0 |
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72.0 |
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in |
1959 |
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34.0 |
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in |
1991 |
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| Month Average Dew Point |
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65.0 |
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61.0 |
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57.0 |
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+8.0 |
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73.0 |
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in |
2014 |
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40.5 |
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in |
1991 |
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| Precipitation |
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1.24 |
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.00 |
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.11 |
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+1.13 |
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2.15 |
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in |
1982 |
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| One Hour |
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.84 |
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.00 |
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.94 |
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in |
1949 |
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| Hourly Rate |
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3.92 |
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.00 |
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3.92 |
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in |
2021 |
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| Month Precipitation |
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1.24 |
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.00 |
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.11 |
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+1.13 |
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2.15 |
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in |
1982 |
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.00 |
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in |
2020 |
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| Year Precipitation |
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30.34 |
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24.03 |
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29.39 |
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+.95 |
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45.30 |
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in |
1998 |
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16.54 |
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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
1, 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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97% |
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94% |
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92% |
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+5% |
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100% |
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in |
2003 |
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63% |
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in |
1953 |
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| Minimum
Humidity |
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79% |
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54% |
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56% |
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+23% |
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93% |
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in |
2013 |
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29% |
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in |
1963 |
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| Average Humidity |
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88% |
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74% |
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74% |
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+14% |
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96% |
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in |
2013 |
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48% |
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in |
1953 |
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| Maximum Barometer |
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29.86 |
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30.20 |
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30.11 |
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-00.25 |
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30.50 |
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in |
2002 |
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29.82 |
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in |
1995 |
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| Minimum
Barometer |
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29.69 |
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30.13 |
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29.92 |
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-00.23 |
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30.29 |
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in |
2018 |
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29.57 |
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in |
2005 |
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| Average Barometer |
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29.78 |
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30.17 |
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30.02 |
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-00.24 |
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30.38 |
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in |
2002 |
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29.73 |
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in |
2005 |
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| Average Wind |
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5.1 |
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3.3 |
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5.7 |
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-0.6 |
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15.4 |
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in |
1965 |
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1.9 |
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in |
1966 |
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| Direction |
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ENE |
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SSE |
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WNW |
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S |
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SE |
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| High Wind Gust |
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27 |
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21 |
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20 |
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+7 |
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39 |
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in |
1965 |
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10 |
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in |
1966 |
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| Direction |
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E |
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SSE |
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SSE |
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S |
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S |
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| Maximum Water Temp |
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75.4 |
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69.4 |
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70.8 |
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+4.6 |
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75.6 |
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in |
2010 |
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66.2 |
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in |
2003 |
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| Minimum
Water Temp |
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73.6 |
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68.0 |
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68.5 |
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+5.1 |
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73.6 |
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in |
2021 |
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65.4 |
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in |
2003 |
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| Average Water Temp |
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74.5 |
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68.7 |
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69.7 |
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+4.8 |
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74.5 |
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in |
2021 |
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65.8 |
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in |
2003 |
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| Sunrise/ AM Twilight |
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6:10:31 AM |
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5:43:32 AM |
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| Sunset / PM
Twilight |
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7:19:42 PM |
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7:46:42 PM |
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| Length Of Day |
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13:09:11 |
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| Special Conditions |
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Fog, Thunderstorm |
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| Comments |
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Remnants from Hurricane Ida |
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| Hour-by-Hour Weather For September 1, 2021 |
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| Climate Weather for September 1 |
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| Weather History For September 1 |
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| Weather Calendar |
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| Back
To Weather Stat Page |
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