| Portsmouth Rhode Island
Weather Almanac |
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| Thursday, September 10, 2020 |
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| Dense Fog early then Cloudy and Rain, Light Winds, Warm and
Very Muggy |
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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
10, 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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76 |
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76 |
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73 |
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+3 |
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89 |
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in |
1961 |
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60 |
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in |
1913 |
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| Minimum
Temperature |
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71 |
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59 |
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58 |
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+13 |
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71 |
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in |
2020 |
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44 |
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in |
1956 |
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| Average Temperature |
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74 |
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68 |
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66 |
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+8 |
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79 |
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in |
1897 |
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54 |
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in |
1913 |
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| Precipitation |
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.27 |
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.00 |
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.13 |
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+.14 |
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2.58 |
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in |
1896 |
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| One Hour |
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.17 |
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.00 |
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.49 |
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in |
1999 |
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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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2 |
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-2 |
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11 |
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in |
1913 |
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0 |
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in |
2020 |
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| CDD |
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9 |
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3 |
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3 |
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+6 |
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14 |
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in |
1897 |
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0 |
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in |
2018 |
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| Maximum Dew Point |
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74 |
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64 |
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61 |
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+13 |
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74 |
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in |
2020 |
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46 |
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in |
1975 |
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| Minimum
Dew Point |
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69 |
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57 |
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53 |
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+17 |
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69 |
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in |
2020 |
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35 |
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in |
1980 |
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| Average Dew Point |
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72 |
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61 |
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57 |
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+15 |
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72 |
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in |
2020 |
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42 |
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in |
1956 |
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| Maximum Humidity |
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98% |
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97% |
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93% |
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+5% |
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100% |
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in |
2016 |
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77% |
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in |
1975 |
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| Minimum
Humidity |
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92% |
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55% |
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57% |
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+35% |
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93% |
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in |
1999 |
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25% |
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in |
1980 |
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| Average Humidity |
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95% |
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76% |
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75% |
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+20% |
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97% |
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in |
1999 |
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54% |
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in |
1953 |
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| Maximum Barometer |
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30.32 |
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30.40 |
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30.12 |
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+00.20 |
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30.49 |
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in |
1957 |
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29.81 |
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in |
1958 |
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| Minimum
Barometer |
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30.10 |
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30.26 |
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29.89 |
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+00.21 |
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30.31 |
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in |
2009 |
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29.43 |
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in |
1933 |
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| Average Barometer |
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30.21 |
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30.33 |
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30.01 |
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+00.20 |
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30.38 |
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in |
2009 |
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29.71 |
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in |
1958 |
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| Average Wind |
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4.0 |
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4.8 |
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6.1 |
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-2.1 |
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11.2 |
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in |
1965 |
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1.8 |
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in |
1990 |
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| Direction |
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S |
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S |
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S |
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SSW |
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SW |
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| High Wind Gust |
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17 |
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17 |
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21 |
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-4 |
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33 |
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in |
1965 |
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12 |
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in |
2007 |
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| Direction |
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SW |
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S |
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SSW |
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SSW |
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NNE |
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| High
Heat Index |
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79 |
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77 |
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75 |
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+4 |
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95 |
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in |
1961 |
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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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71.4 |
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69.5 |
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69.4 |
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+2.0 |
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73.6 |
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in |
2015 |
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65.8 |
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in |
2017 |
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| Minimum
Water Temp |
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70.7 |
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68.4 |
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67.2 |
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+3.5 |
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70.7 |
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in |
2020 |
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63.9 |
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in |
2017 |
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| Average Water Temp |
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71.1 |
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69.0 |
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68.3 |
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+2.7 |
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71.5 |
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in |
2016 |
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64.9 |
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in |
2017 |
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| Sunrise/ AM Twilight |
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6:21:53 AM |
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5:54:02 AM |
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| Sunset
/ PM Twilight |
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7:01:37 PM |
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7:29:28 PM |
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| Length Of Day |
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12:39:44 |
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| Special Conditions |
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Dense Fog |
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| Comments |
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September
10, 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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79.2 |
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75.1 |
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74.7 |
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+4.5 |
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84.7 |
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in |
1983 |
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68.8 |
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in |
1994 |
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| Avg
Minimum Temperature |
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64.2 |
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58.6 |
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59.6 |
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+4.6 |
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67.7 |
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in |
1959 |
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51.5 |
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in |
1893 |
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| Average Temperature |
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71.9 |
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67.0 |
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67.2 |
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+4.8 |
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75.5 |
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in |
1959 |
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62.1 |
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in |
1994 |
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| Total
Precipitation |
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.66 |
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.08 |
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1.30 |
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-.64 |
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4.86 |
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in |
1924 |
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.00 |
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in |
2009 |
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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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5 |
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11 |
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-11 |
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36 |
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in |
1994 |
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0 |
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in |
2020 |
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| Total CDD |
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69 |
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25 |
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35 |
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+34 |
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105 |
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in |
1959 |
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0 |
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in |
1893 |
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| Avg Maximum Dew Point |
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68.5 |
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64.3 |
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62.7 |
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+5.8 |
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70.6 |
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in |
1993 |
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54.2 |
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in |
1984 |
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| Avg
Minimum Dew Point |
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59.2 |
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54.8 |
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53.7 |
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+5.5 |
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64.0 |
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in |
1959 |
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44.0 |
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in |
1984 |
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| Average Dew Point |
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64.0 |
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59.8 |
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58.2 |
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+5.8 |
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67.2 |
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in |
1959 |
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49.1 |
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in |
1984 |
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September 10, 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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37.91 |
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32.92 |
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-8.23 |
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46.33 |
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in |
1998 |
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16.94 |
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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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5 |
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20 |
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-20 |
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36 |
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in |
1994 |
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0 |
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in |
2020 |
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| Total
CDD (since Jan 1) |
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835 |
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683 |
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533 |
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+302 |
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835 |
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in |
2020 |
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279 |
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in |
1902 |
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| Hour-by-Hour Weather For September 10, 2020 |
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| Climate Weather for September 10 |
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| Weather History For September 10 |
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| Weather Calendar |
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