| Portsmouth Rhode Island
Weather Almanac |
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| Tuesday, September 1, 2020 |
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| Partly Cloudy, Light Winds, Seasonal Temperatures |
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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
1, 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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78 |
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77 |
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76 |
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+2 |
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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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59 |
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57 |
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61 |
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-2 |
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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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69 |
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67 |
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68 |
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+1 |
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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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| 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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2.15 |
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in |
1982 |
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| One Hour |
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.00 |
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.00 |
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.94 |
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in |
1949 |
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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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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 |
2020 |
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| CDD |
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4 |
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2 |
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4 |
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+0 |
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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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| Maximum Dew Point |
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65 |
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61 |
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64 |
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+1 |
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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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57 |
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53 |
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55 |
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+2 |
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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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61 |
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57 |
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60 |
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+2 |
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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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| Maximum Humidity |
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94% |
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91% |
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92% |
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+2% |
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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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54% |
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51% |
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56% |
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-2% |
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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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74% |
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71% |
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74% |
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+0% |
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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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30.20 |
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30.38 |
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30.11 |
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+00.09 |
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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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30.13 |
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30.28 |
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29.92 |
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+00.21 |
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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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30.17 |
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30.33 |
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30.02 |
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+00.15 |
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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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3.3 |
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5.4 |
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5.8 |
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-2.5 |
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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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SSE |
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NNE |
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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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21 |
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16 |
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20 |
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+1 |
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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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SSE |
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SSE |
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SSE |
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S |
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S |
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| High
Heat Index |
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78 |
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77 |
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78 |
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-0 |
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98 |
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in |
2010 |
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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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69.4 |
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70.6 |
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70.6 |
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-1.2 |
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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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68.0 |
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68.6 |
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68.3 |
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-0.3 |
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72.0 |
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in |
2010 |
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65.4 |
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in |
2003 |
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| Average Water Temp |
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68.7 |
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69.6 |
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69.5 |
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-0.8 |
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73.8 |
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in |
2010 |
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65.8 |
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in |
2003 |
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| Sunrise/ AM Twilight |
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6:12:48 AM |
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5:44:30 AM |
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| Sunset
/ PM Twilight |
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7:16:50 PM |
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7:45:08 PM |
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| Length Of Day |
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13:04:02 |
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| Special Conditions |
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None |
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| Comments |
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September
1, 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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78.0 |
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77.0 |
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76.0 |
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+2.0 |
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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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| Avg
Minimum Temperature |
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59.0 |
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57.0 |
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61.0 |
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-2.0 |
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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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| Average Temperature |
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69.0 |
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67.0 |
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68.5 |
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+0.5 |
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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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| Total
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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2.15 |
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in |
1982 |
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.00 |
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in |
2020 |
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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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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 |
2020 |
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| Total CDD |
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4 |
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2 |
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4 |
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+0 |
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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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| Avg Maximum Dew Point |
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65.0 |
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61.0 |
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64.0 |
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+1.0 |
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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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| Avg
Minimum Dew Point |
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57.0 |
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53.0 |
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55.0 |
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+2.0 |
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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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| Average Dew Point |
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61.0 |
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57.0 |
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59.5 |
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+1.5 |
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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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September 1, 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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24.03 |
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37.83 |
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31.75 |
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-7.72 |
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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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| 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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0 |
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0 |
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10 |
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-10 |
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8 |
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in |
1912 |
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0 |
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in |
2020 |
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| Total
CDD (since Jan 1) |
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770 |
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660 |
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502 |
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+268 |
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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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| Hour-by-Hour Weather For September 1, 2020 |
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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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