| Portsmouth Rhode Island
Weather Almanac |
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| Saturday, September 19, 2020 |
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| Clear, Breezy, Low Humidity and Much Cooler |
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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
19, 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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64 |
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70 |
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71 |
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-7 |
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85 |
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in |
1946 |
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60 |
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in |
1987 |
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| Minimum
Temperature |
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45 |
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46 |
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55 |
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-10 |
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68 |
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in |
2016 |
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37 |
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in |
1956 |
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| Average Temperature |
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55 |
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58 |
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63 |
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-8 |
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75 |
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in |
1906 |
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50 |
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in |
1956 |
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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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1.84 |
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in |
1972 |
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| One Hour |
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.00 |
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.00 |
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.71 |
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in |
2006 |
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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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7 |
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3 |
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+7 |
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15 |
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in |
1956 |
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0 |
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in |
2017 |
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| CDD |
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0 |
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0 |
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1 |
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-1 |
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10 |
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in |
1906 |
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0 |
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in |
2020 |
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| Maximum Dew Point |
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40 |
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53 |
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59 |
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-19 |
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72 |
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in |
1991 |
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40 |
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in |
2020 |
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| Minimum
Dew Point |
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30 |
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43 |
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50 |
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-20 |
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66 |
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in |
2016 |
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26 |
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in |
1979 |
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| Average Dew Point |
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35 |
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48 |
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55 |
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-20 |
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69 |
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in |
2016 |
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35 |
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in |
2020 |
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| Maximum Humidity |
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70% |
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93% |
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93% |
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-23% |
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100% |
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in |
2018 |
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70% |
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in |
2020 |
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| Minimum
Humidity |
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29% |
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47% |
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59% |
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-30% |
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96% |
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in |
1989 |
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29% |
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in |
2020 |
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| Average Humidity |
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50% |
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70% |
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76% |
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-27% |
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98% |
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in |
1989 |
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50% |
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in |
2020 |
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| Maximum Barometer |
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30.38 |
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30.36 |
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30.16 |
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+00.22 |
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30.58 |
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in |
1939 |
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29.81 |
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in |
1976 |
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| Minimum
Barometer |
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30.09 |
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30.26 |
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29.93 |
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+00.16 |
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30.36 |
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in |
2008 |
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29.30 |
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in |
1981 |
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| Average Barometer |
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30.24 |
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30.31 |
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30.04 |
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+00.19 |
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30.43 |
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in |
2008 |
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29.60 |
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in |
1981 |
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| Average Wind |
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7.5 |
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5.3 |
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6.1 |
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+1.4 |
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14.7 |
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in |
1987 |
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2.2 |
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in |
2005 |
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| Direction |
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NNE |
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N |
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NNE |
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NNE |
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SSW |
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| High Wind Gust |
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28 |
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17 |
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21 |
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+7 |
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43 |
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in |
1936 |
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12 |
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in |
1999 |
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| Direction |
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NNE |
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NNE |
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NNE |
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E |
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SE |
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| High
Heat Index |
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59 |
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68 |
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71 |
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-12 |
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86 |
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in |
1983 |
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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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66.7 |
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67.3 |
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67.9 |
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-1.2 |
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71.1 |
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in |
2015 |
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64.6 |
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in |
1996 |
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| Minimum
Water Temp |
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64.8 |
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66.2 |
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65.7 |
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-0.9 |
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69.5 |
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in |
2018 |
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62.6 |
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in |
1996 |
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| Average Water Temp |
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65.8 |
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66.8 |
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66.8 |
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-1.1 |
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70.1 |
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in |
2018 |
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63.6 |
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in |
1996 |
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| Sunrise/ AM Twilight |
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6:31:00 AM |
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6:03:25 AM |
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| Sunset /
PM Twilight |
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6:46:05 PM |
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7:13:41 PM |
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| Length Of Day |
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12:15:05 |
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| Special Conditions |
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None |
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| Comments |
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September
19, 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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75.5 |
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74.0 |
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73.4 |
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+2.1 |
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81.1 |
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in |
1983 |
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68.7 |
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in |
1913 |
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| Avg
Minimum Temperature |
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58.9 |
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56.6 |
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58.2 |
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+0.7 |
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64.2 |
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in |
1915 |
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52.8 |
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in |
1984 |
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| Average Temperature |
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67.5 |
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65.5 |
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65.8 |
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+1.7 |
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72.3 |
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in |
1961 |
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61.7 |
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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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2.47 |
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-1.81 |
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7.93 |
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in |
1932 |
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.06 |
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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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26 |
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31 |
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31 |
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-5 |
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90 |
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in |
1913 |
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0 |
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in |
2015 |
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| Total CDD |
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74 |
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41 |
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49 |
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+25 |
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153 |
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in |
1961 |
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7 |
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in |
1975 |
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| Avg Maximum Dew Point |
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64.4 |
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62.8 |
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61.5 |
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+2.9 |
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69.1 |
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in |
2018 |
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55.0 |
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in |
1984 |
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| Avg
Minimum Dew Point |
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52.6 |
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52.6 |
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52.5 |
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+0.1 |
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60.9 |
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in |
2018 |
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44.2 |
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in |
1984 |
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| Average Dew Point |
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58.7 |
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57.9 |
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57.0 |
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+1.7 |
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65.3 |
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in |
2018 |
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49.6 |
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in |
1984 |
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September 19, 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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34.09 |
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-9.40 |
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46.35 |
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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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26 |
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31 |
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40 |
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-14 |
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90 |
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in |
1913 |
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0 |
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in |
2015 |
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| Total CDD
(since Jan 1) |
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840 |
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699 |
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547 |
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+293 |
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840 |
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in |
2020 |
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280 |
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in |
1902 |
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| Hour-by-Hour Weather For September 19, 2020 |
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| Climate Weather for September 19 |
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| Weather History For September 19 |
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| Weather Calendar |
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