| Portsmouth Rhode Island
Weather Almanac |
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| Tuesday, September 22, 2020 |
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| Clear early to Mostly Cloudy Skies, Windy, Continued Very
Cold and Dry |
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| Climate
Normal Period |
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Climate Record Period |
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| 1981- 2010 |
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1893 - 2020 |
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September
22, 2020 |
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Record |
Record |
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| Observed Daily Data |
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Observed |
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2019 |
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Normal |
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Depart |
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Highest |
Lowest |
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| Maximum Temperature |
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65 |
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76 |
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70 |
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-5 |
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88 |
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in |
1980 |
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54 |
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in |
1904 |
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| Minimum
Temperature |
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45 |
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62 |
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54 |
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-9 |
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70 |
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in |
1989 |
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36 |
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in |
1904 |
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| Average Temperature |
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55 |
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69 |
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62 |
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-7 |
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78 |
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in |
1980 |
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45 |
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in |
1904 |
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| Precipitation |
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.00 |
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.00 |
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.13 |
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-.13 |
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1.86 |
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in |
1979 |
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| One Hour |
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.00 |
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.00 |
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.58 |
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in |
1990 |
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| Snow |
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#N/A |
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0.0 |
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0.0 |
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#N/A |
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0.0 |
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in |
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| Snow Depth |
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#N/A |
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0 |
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0 |
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in |
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| HDD |
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10 |
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0 |
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4 |
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+6 |
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20 |
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in |
1904 |
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0 |
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in |
2019 |
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| CDD |
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0 |
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4 |
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1 |
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-1 |
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13 |
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in |
1980 |
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0 |
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in |
2020 |
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| Maximum Dew Point |
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41 |
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68 |
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58 |
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-17 |
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71 |
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in |
2011 |
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41 |
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in |
2020 |
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| Minimum
Dew Point |
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32 |
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60 |
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49 |
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-17 |
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68 |
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in |
1989 |
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32 |
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in |
2020 |
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| Average Dew Point |
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37 |
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64 |
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54 |
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-17 |
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70 |
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in |
1989 |
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37 |
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in |
2020 |
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| Maximum Humidity |
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78% |
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97% |
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95% |
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-17% |
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100% |
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in |
2017 |
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78% |
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in |
1955 |
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| Minimum
Humidity |
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30% |
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72% |
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61% |
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-31% |
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91% |
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in |
2011 |
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30% |
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in |
2020 |
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| Average Humidity |
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54% |
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85% |
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78% |
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-24% |
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95% |
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in |
2011 |
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56% |
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in |
1955 |
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| Maximum Barometer |
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30.34 |
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30.20 |
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30.11 |
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+00.23 |
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30.53 |
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in |
1929 |
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29.73 |
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in |
1954 |
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| Minimum
Barometer |
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29.76 |
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30.01 |
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29.88 |
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-00.12 |
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30.29 |
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in |
1962 |
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29.17 |
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in |
1966 |
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| Average Barometer |
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30.05 |
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30.11 |
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30.00 |
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+00.05 |
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30.35 |
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in |
2008 |
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29.51 |
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in |
1966 |
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| Average Wind |
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9.3 |
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6.0 |
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6.7 |
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+2.6 |
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20.0 |
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in |
2017 |
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2.0 |
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in |
2016 |
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| Direction |
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NNW |
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S |
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SSW |
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NNE |
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N |
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| High Wind Gust |
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27 |
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19 |
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22 |
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+5 |
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43 |
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in |
2017 |
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11 |
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in |
2016 |
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| Direction |
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NNW |
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S |
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SW |
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NNE |
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SE |
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| High
Heat Index |
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61 |
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78 |
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71 |
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-10 |
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89 |
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in |
1980 |
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| Wind Chill |
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#N/A |
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in |
#N/A |
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| Maximum Water Temp |
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64.6 |
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67.6 |
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67.8 |
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-3.2 |
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71.2 |
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in |
2005 |
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64.6 |
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in |
2020 |
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| Minimum
Water Temp |
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63.1 |
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66.3 |
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65.8 |
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-2.7 |
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68.6 |
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in |
2016 |
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63.1 |
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in |
2020 |
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| Average Water Temp |
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63.9 |
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67.0 |
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66.8 |
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-3.0 |
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69.5 |
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in |
2016 |
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63.9 |
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in |
2020 |
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| Sunrise/ AM Twilight |
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6:34:04 AM |
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6:06:32 AM |
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| Sunset
/ PM Twilight |
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6:40:54 PM |
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7:08:27 PM |
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| Length Of Day |
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12:06:50 |
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| Special Conditions |
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None |
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| Comments |
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12 consecutive day without measurable rain |
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September
22, 2020 |
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Record |
Record |
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| Month-to-Date Summary |
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Observed |
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2019 |
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Normal |
Depart |
Highest |
Lowest |
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| Avg Maximum Temperature |
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74.0 |
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74.6 |
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73.0 |
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+1.0 |
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80.7 |
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in |
1983 |
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68.5 |
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in |
1963 |
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| Avg
Minimum Temperature |
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57.0 |
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56.5 |
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57.7 |
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-0.7 |
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63.4 |
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in |
1961 |
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52.7 |
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in |
1984 |
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| Average Temperature |
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65.8 |
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65.7 |
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65.3 |
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+0.5 |
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71.6 |
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in |
1961 |
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61.5 |
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in |
1963 |
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| Total
Precipitation |
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.66 |
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.64 |
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2.86 |
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-2.20 |
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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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| Total Snow |
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0.0 |
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0.0 |
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0.0 |
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+0.0 |
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0.0 |
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in |
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0.0 |
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in |
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| Total
HDD |
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56 |
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33 |
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41 |
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+15 |
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106 |
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in |
1956 |
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4 |
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in |
2015 |
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| Total CDD |
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74 |
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49 |
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52 |
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+22 |
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160 |
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in |
1961 |
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7 |
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in |
1893 |
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| Avg Maximum Dew Point |
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61.4 |
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62.9 |
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61.1 |
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+0.3 |
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68.5 |
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in |
2018 |
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54.8 |
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in |
1984 |
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| Avg
Minimum Dew Point |
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49.8 |
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52.6 |
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52.1 |
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-2.3 |
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59.8 |
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in |
2018 |
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44.0 |
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in |
1984 |
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| Average Dew Point |
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55.8 |
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58.0 |
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56.6 |
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-0.8 |
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64.4 |
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in |
2018 |
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49.4 |
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in |
1984 |
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September 22, 2020 |
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Record |
Record |
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| Year-to-Date Summary |
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Observed |
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2019 |
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Normal |
Depart |
Highest |
Lowest |
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| Total Precipitation |
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24.69 |
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38.47 |
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34.48 |
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-9.79 |
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48.02 |
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in |
1998 |
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17.53 |
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in |
1957 |
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| Total
Snow (since Jul 1 20) |
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0.0 |
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0.0 |
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0.0 |
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+0.0 |
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0.0 |
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in |
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0.0 |
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in |
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| Total HDD (since Jul 1
20) |
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56 |
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33 |
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50 |
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+6 |
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106 |
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in |
1956 |
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4 |
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in |
2015 |
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| Total
CDD (since Jan 1) |
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840 |
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707 |
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550 |
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+290 |
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840 |
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in |
2020 |
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282 |
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in |
1902 |
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| Hour-by-Hour Weather For September 22, 2020 |
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| Climate Weather for September 22 |
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| Weather History For September 22 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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