| Portsmouth Rhode Island Weather Almanac |
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| Thursday,
September 23, 2021 |
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| Mostly
Cloudy, Light Shower then Partly Cloudy, Windy, Much Warmer & Muggy |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2021 |
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September 23, 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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79 |
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78 |
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70 |
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+9 |
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86 |
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in |
1980 |
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54 |
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in |
1963 |
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| Minimum
Temperature |
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69 |
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54 |
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55 |
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+14 |
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69 |
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in |
2021 |
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35 |
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in |
1904 |
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| Average Temperature |
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74 |
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66 |
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63 |
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+11 |
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75 |
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in |
1980 |
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47 |
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in |
1904 |
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| Month Avg Max Temperature |
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75.7 |
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74.2 |
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73.2 |
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+2.5 |
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80.1 |
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in |
1983 |
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67.9 |
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in |
1963 |
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| Month Avg
Min Temperature |
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61.4 |
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56.9 |
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58.4 |
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+3.0 |
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63.4 |
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in |
1961 |
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52.3 |
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in |
1962 |
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| Month Average Temperature |
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68.8 |
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65.8 |
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65.8 |
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+3.0 |
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71.6 |
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in |
1961 |
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61.0 |
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in |
1963 |
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| High Heat
Index |
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82 |
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78 |
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70 |
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+12 |
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87 |
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in |
1959 |
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| Low Wind Chill |
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31 |
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in |
1904 |
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| HDD |
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0 |
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0 |
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3 |
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-3 |
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18 |
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in |
1904 |
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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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41 |
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-39 |
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110 |
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in |
1956 |
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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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48 |
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-37 |
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141 |
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in |
1956 |
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5 |
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in |
2015 |
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| CDD |
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9 |
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1 |
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1 |
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+8 |
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10 |
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in |
1980 |
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0 |
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in |
2018 |
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| Month CDD |
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90 |
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75 |
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59 |
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+31 |
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166 |
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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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773 |
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841 |
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596 |
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+177 |
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841 |
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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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72 |
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59 |
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61 |
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+11 |
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73 |
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in |
1989 |
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43 |
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in |
1963 |
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| Minimum
Dew Point |
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67 |
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39 |
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51 |
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+16 |
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67 |
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in |
2021 |
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30 |
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in |
1963 |
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| Average Dew Point |
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70 |
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49 |
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56 |
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+14 |
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70 |
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in |
2021 |
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37 |
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in |
1963 |
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| Month Avg Max Dew Point |
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67.4 |
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61.3 |
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63.5 |
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+3.9 |
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67.8 |
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in |
2018 |
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55.1 |
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in |
1984 |
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| Month Avg
Min Dew Point |
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57.9 |
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49.3 |
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53.9 |
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+4.0 |
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59.2 |
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in |
2018 |
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44.1 |
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in |
1984 |
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| Month Average Dew Point |
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62.9 |
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55.5 |
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58.7 |
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+4.2 |
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63.8 |
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in |
2018 |
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49.6 |
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in |
1984 |
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| Precipitation |
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.01 |
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.00 |
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.13 |
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-.12 |
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2.25 |
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in |
1919 |
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| One Hour |
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.01 |
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.00 |
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1.40 |
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in |
2002 |
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| Hourly Rate |
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.00 |
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.00 |
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4.50 |
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in |
2011 |
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| Month Precipitation |
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8.66 |
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.66 |
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2.84 |
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+5.82 |
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9.58 |
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in |
1960 |
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.13 |
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in |
1946 |
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| Year Precipitation |
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37.76 |
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24.69 |
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32.12 |
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+5.64 |
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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
23, 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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96% |
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76% |
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93% |
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+3% |
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100% |
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in |
2017 |
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60% |
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in |
1983 |
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| Minimum
Humidity |
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75% |
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45% |
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59% |
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+16% |
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96% |
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in |
2011 |
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38% |
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in |
1955 |
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| Average Humidity |
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86% |
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61% |
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76% |
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+10% |
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98% |
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in |
1994 |
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50% |
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in |
1983 |
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| Maximum Barometer |
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30.10 |
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29.88 |
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30.11 |
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-00.01 |
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30.61 |
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in |
1904 |
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29.57 |
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in |
1950 |
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| Minimum
Barometer |
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30.04 |
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29.74 |
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29.87 |
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+00.17 |
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30.42 |
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in |
2008 |
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29.19 |
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in |
1966 |
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| Average Barometer |
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30.07 |
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29.81 |
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29.99 |
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+00.08 |
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30.46 |
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in |
2008 |
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29.42 |
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in |
1966 |
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| Average Wind |
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9.2 |
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7.0 |
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6.7 |
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+2.5 |
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15.3 |
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in |
1989 |
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2.0 |
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in |
1960 |
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| Direction |
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SSE |
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NW |
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N |
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SW |
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S |
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| High Wind Gust |
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29 |
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20 |
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23 |
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+6 |
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45 |
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in |
1989 |
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11 |
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in |
2018 |
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| Direction |
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S |
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NNW |
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SSW |
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SW |
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NE |
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| Maximum Water Temp |
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71.8 |
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65.3 |
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67.6 |
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+4.2 |
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71.8 |
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in |
2021 |
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64.3 |
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in |
2013 |
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| Minimum
Water Temp |
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70.3 |
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61.9 |
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65.5 |
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+4.8 |
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70.3 |
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in |
2021 |
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61.9 |
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in |
2020 |
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| Average Water Temp |
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71.1 |
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63.6 |
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66.6 |
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+4.5 |
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71.1 |
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in |
2021 |
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63.6 |
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in |
2020 |
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| Sunrise/ AM Twilight |
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6:32:50 AM |
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6:06:38 AM |
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| Sunset /
PM Twilight |
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6:42:05 PM |
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7:08:17 PM |
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| Length Of Day |
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12:09:15 |
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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 23, 2021 |
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| Climate Weather for September 23 |
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| Weather History For September 23 |
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| Weather Calendar |
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| Back
To Weather Stat Page |
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