| Portsmouth Rhode Island
Weather Almanac |
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| Sunday, September 27, 2020 |
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| Cloudy, Dense Fog AM, Mostly Cloudy PM, 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
27, 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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73 |
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68 |
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+8 |
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82 |
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in |
2014 |
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54 |
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in |
1893 |
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| Minimum
Temperature |
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65 |
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54 |
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53 |
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+12 |
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66 |
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in |
2007 |
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36 |
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in |
1957 |
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| Average Temperature |
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71 |
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64 |
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61 |
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+10 |
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72 |
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in |
2017 |
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48 |
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in |
1957 |
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| Precipitation |
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T |
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.00 |
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.13 |
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.00 |
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1.49 |
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in |
1962 |
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| One Hour |
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T |
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.00 |
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.29 |
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in |
1998 |
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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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1 |
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5 |
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-5 |
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17 |
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in |
1957 |
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0 |
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in |
2020 |
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| CDD |
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6 |
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0 |
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1 |
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+5 |
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7 |
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in |
2017 |
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0 |
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in |
2019 |
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| Maximum Dew Point |
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70 |
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57 |
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57 |
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+13 |
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76 |
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in |
2017 |
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29 |
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in |
1957 |
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| Minimum
Dew Point |
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63 |
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44 |
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48 |
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+15 |
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65 |
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in |
1993 |
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17 |
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in |
1957 |
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| Average Dew Point |
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67 |
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51 |
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53 |
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+15 |
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70 |
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in |
2017 |
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23 |
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in |
1957 |
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| Maximum Humidity |
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98% |
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96% |
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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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84% |
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37% |
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61% |
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+23% |
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97% |
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in |
1993 |
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26% |
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in |
1957 |
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| Average Humidity |
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91% |
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67% |
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77% |
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+14% |
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99% |
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in |
1993 |
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43% |
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in |
1957 |
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| Maximum Barometer |
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30.07 |
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30.16 |
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30.13 |
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-00.06 |
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30.48 |
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in |
2015 |
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29.76 |
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in |
1977 |
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| Minimum
Barometer |
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29.98 |
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29.92 |
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29.89 |
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+00.09 |
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30.33 |
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in |
1996 |
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28.81 |
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in |
1985 |
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| Average Barometer |
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30.03 |
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30.04 |
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30.01 |
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+00.01 |
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30.40 |
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in |
2015 |
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29.54 |
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in |
1985 |
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| Average Wind |
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4.6 |
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5.0 |
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6.1 |
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-1.5 |
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23.8 |
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in |
1985 |
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1.0 |
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in |
1990 |
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| Direction |
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S |
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NNW |
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SSW |
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S |
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ESE |
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| High Wind Gust |
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16 |
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17 |
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22 |
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-6 |
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77 |
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in |
1985 |
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9 |
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in |
2017 |
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| Direction |
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SW |
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NW |
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SW |
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S |
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SSE |
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| High
Heat Index |
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78 |
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72 |
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69 |
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+9 |
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85 |
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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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70.0 |
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in |
2003 |
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63.0 |
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in |
1996 |
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| Minimum
Water Temp |
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65.5 |
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66.2 |
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64.9 |
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+0.6 |
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67.2 |
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in |
2003 |
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61.0 |
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in |
2000 |
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| Average Water Temp |
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66.5 |
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66.9 |
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65.9 |
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+0.6 |
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68.6 |
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in |
2003 |
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62.5 |
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in |
2000 |
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| Sunrise/ AM Twilight |
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6:39:15 AM |
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6:11:44 AM |
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| Sunset /
PM Twilight |
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6:32:18 PM |
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6:59:49 PM |
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| Length Of Day |
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11:53:03 |
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| Special Conditions |
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Dense Fog |
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| Comments |
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1985: Hurricane Gloria affects RI with 77 mph
wind gust |
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September
27, 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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74.7 |
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74.8 |
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72.2 |
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+2.4 |
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78.7 |
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in |
1961 |
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67.6 |
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in |
1963 |
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| Avg
Minimum Temperature |
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57.3 |
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56.9 |
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56.9 |
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+0.3 |
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63.2 |
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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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66.3 |
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66.0 |
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64.6 |
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+1.7 |
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71.1 |
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in |
1961 |
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60.3 |
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in |
1963 |
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| Total
Precipitation |
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.66 |
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1.57 |
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3.51 |
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-2.85 |
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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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63 |
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-7 |
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156 |
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in |
1956 |
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5 |
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in |
1930 |
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| Total CDD |
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90 |
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63 |
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57 |
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+33 |
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180 |
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in |
1961 |
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7 |
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in |
1893 |
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| Avg Maximum Dew Point |
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61.9 |
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63.1 |
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60.5 |
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+1.4 |
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67.7 |
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in |
2018 |
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55.0 |
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in |
1966 |
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| Avg
Minimum Dew Point |
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50.5 |
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52.8 |
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51.4 |
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-0.9 |
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58.5 |
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in |
1961 |
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44.4 |
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in |
1984 |
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| Average Dew Point |
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56.4 |
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58.2 |
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55.9 |
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+0.5 |
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63.3 |
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in |
2018 |
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50.1 |
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in |
1984 |
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September 27, 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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39.40 |
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35.13 |
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-10.44 |
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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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72 |
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-16 |
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156 |
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in |
1956 |
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5 |
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in |
1930 |
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| Total CDD
(since Jan 1) |
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856 |
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721 |
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555 |
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+301 |
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856 |
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in |
2020 |
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285 |
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in |
1902 |
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| Hour-by-Hour Weather For September 27, 2020 |
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| Climate Weather for September 27 |
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| Weather History For September 27 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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