| Portsmouth Rhode Island
Weather Almanac |
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| Monday, September 28, 2020 |
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| Cloudy, Afternoon Rain, Foggy, Continued Very Warm and 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
28, 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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72 |
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74 |
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68 |
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+4 |
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80 |
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in |
2017 |
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55 |
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in |
1914 |
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| Minimum
Temperature |
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65 |
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58 |
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52 |
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+13 |
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67 |
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in |
2010 |
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35 |
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in |
1980 |
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| Average Temperature |
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69 |
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66 |
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60 |
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+9 |
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71 |
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in |
1961 |
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46 |
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in |
1965 |
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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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1.85 |
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in |
1958 |
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| One Hour |
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.20 |
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.00 |
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.73 |
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in |
2018 |
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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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5 |
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-5 |
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19 |
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in |
1965 |
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0 |
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in |
2020 |
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| CDD |
|
4 |
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1 |
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1 |
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+3 |
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6 |
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in |
1961 |
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0 |
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in |
2018 |
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| Maximum Dew Point |
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69 |
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66 |
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57 |
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+12 |
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72 |
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in |
2017 |
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31 |
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in |
1957 |
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| Minimum
Dew Point |
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64 |
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56 |
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48 |
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+17 |
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66 |
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in |
2010 |
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22 |
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in |
1957 |
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| Average Dew Point |
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67 |
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61 |
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52 |
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+15 |
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68 |
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in |
2010 |
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27 |
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in |
1957 |
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| Maximum Humidity |
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98% |
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92% |
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93% |
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+5% |
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100% |
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in |
2017 |
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59% |
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in |
1957 |
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| Minimum
Humidity |
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87% |
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67% |
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59% |
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+28% |
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96% |
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in |
2004 |
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24% |
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in |
1957 |
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| Average Humidity |
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93% |
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80% |
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76% |
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+17% |
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98% |
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in |
2004 |
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42% |
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in |
1957 |
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| Maximum Barometer |
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30.00 |
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30.17 |
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30.12 |
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-00.12 |
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30.46 |
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in |
1985 |
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29.62 |
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in |
2009 |
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| Minimum
Barometer |
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29.94 |
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30.08 |
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29.88 |
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+00.06 |
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30.28 |
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in |
1950 |
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29.45 |
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in |
2009 |
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| Average Barometer |
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29.97 |
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30.13 |
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30.00 |
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-00.03 |
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30.35 |
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in |
1950 |
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29.54 |
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in |
2009 |
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| Average Wind |
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6.0 |
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8.5 |
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6.4 |
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-0.4 |
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14.3 |
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in |
1956 |
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0.9 |
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in |
1965 |
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| Direction |
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S |
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S |
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S |
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NNE |
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NNW |
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| High Wind Gust |
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18 |
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24 |
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22 |
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-4 |
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44 |
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in |
1985 |
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10 |
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in |
2015 |
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| Direction |
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S |
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S |
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S |
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SW |
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SE |
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| High
Heat Index |
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74 |
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76 |
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70 |
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+4 |
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81 |
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in |
2017 |
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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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67.5 |
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67.5 |
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66.8 |
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+0.7 |
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69.3 |
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in |
2005 |
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62.9 |
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in |
2010 |
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| Minimum
Water Temp |
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66.0 |
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66.1 |
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64.9 |
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+1.1 |
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67.6 |
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in |
2003 |
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61.1 |
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in |
2010 |
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| Average Water Temp |
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66.8 |
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66.8 |
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65.9 |
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+0.9 |
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68.4 |
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in |
2003 |
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62.0 |
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in |
2010 |
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| Sunrise/ AM Twilight |
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6:40:17 AM |
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6:12:47 AM |
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| Sunset
/ PM Twilight |
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6:30:36 PM |
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6:58:06 PM |
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| Length Of Day |
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11:50:19 |
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| Special Conditions |
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Dense Fog |
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| Comments |
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1st measurable rain since September 10th |
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September
28, 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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74.6 |
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74.8 |
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72.1 |
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+2.5 |
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78.6 |
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in |
1961 |
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67.8 |
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in |
1963 |
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| Avg
Minimum Temperature |
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57.5 |
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56.9 |
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56.8 |
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+0.8 |
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63.3 |
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in |
1961 |
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52.0 |
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in |
1956 |
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| Average Temperature |
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66.4 |
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66.0 |
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64.4 |
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+1.9 |
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71.1 |
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in |
1961 |
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60.4 |
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in |
1963 |
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| Total
Precipitation |
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.93 |
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1.57 |
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3.64 |
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-2.71 |
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10.67 |
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in |
1961 |
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.31 |
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in |
1959 |
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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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35 |
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68 |
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-12 |
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167 |
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in |
1956 |
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7 |
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in |
1930 |
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| Total CDD |
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94 |
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64 |
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58 |
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+36 |
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186 |
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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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62.2 |
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63.2 |
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60.4 |
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+1.8 |
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67.4 |
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in |
2018 |
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54.8 |
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in |
1966 |
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| Avg
Minimum Dew Point |
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51.0 |
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52.9 |
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51.2 |
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-0.3 |
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58.1 |
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in |
2018 |
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44.3 |
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in |
1984 |
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| Average Dew Point |
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56.8 |
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58.3 |
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55.8 |
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+1.0 |
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63.1 |
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in |
2018 |
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49.8 |
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in |
1984 |
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September 28, 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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24.96 |
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39.40 |
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35.26 |
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-10.30 |
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48.49 |
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in |
1998 |
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17.64 |
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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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35 |
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77 |
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-21 |
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167 |
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in |
1956 |
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7 |
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in |
1930 |
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| Total
CDD (since Jan 1 20) |
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860 |
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722 |
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556 |
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+304 |
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860 |
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in |
2020 |
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287 |
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in |
1902 |
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| Hour-by-Hour Weather For September 28, 2020 |
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| Climate Weather for September 28 |
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| Weather History For September 28 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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