| Portsmouth Rhode Island Weather Almanac |
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| Friday,
August 20, 2021 |
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| Partly
Cloudy, Warmer and Muggy |
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Climate Normal Period |
Climate
Record Period |
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1991 - 2020 |
1893 -
2021 |
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August 20, 2021 |
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Record |
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Record |
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| Observed Daily Data |
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2021 |
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2020 |
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Norm |
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Depart |
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Highest |
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Lowest |
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| Maximum Temperature |
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84 |
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80 |
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78 |
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+6 |
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93 |
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in |
1983 |
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68 |
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in |
1893 |
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| Minimum
Temperature |
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71 |
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59 |
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63 |
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+8 |
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72 |
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in |
1899 |
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50 |
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in |
1907 |
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| Average Temperature |
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78 |
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70 |
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71 |
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+7 |
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81 |
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in |
1937 |
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62 |
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in |
1998 |
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| Month Avg Max Temperature |
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80.8 |
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83.1 |
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79.1 |
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+1.8 |
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84.3 |
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in |
1944 |
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72.5 |
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in |
1964 |
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| Month Avg Min Temperature |
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66.2 |
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67.5 |
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64.4 |
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+1.9 |
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69.9 |
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in |
2018 |
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55.8 |
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in |
1964 |
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| Month Average
Temperature |
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73.8 |
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75.5 |
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71.7 |
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+2.1 |
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76.9 |
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in |
1988 |
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64.5 |
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in |
1964 |
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| High
Heat Index |
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90 |
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79 |
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79 |
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+11 |
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101 |
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in |
1983 |
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| Low Wind Chill |
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#N/A |
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in |
#N/A |
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| HDD |
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0 |
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0 |
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0 |
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+0 |
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3 |
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in |
1998 |
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0 |
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in |
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| Month HDD |
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0 |
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0 |
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0 |
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+0 |
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26 |
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in |
1964 |
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0 |
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in |
2021 |
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| Season HDD |
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9 |
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0 |
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3 |
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+6 |
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34 |
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in |
1914 |
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0 |
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in |
2020 |
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| CDD |
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13 |
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5 |
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6 |
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+7 |
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16 |
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in |
1937 |
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0 |
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in |
2008 |
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| Month CDD |
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176 |
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210 |
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145 |
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+31 |
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237 |
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in |
1988 |
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15 |
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in |
1964 |
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| Year CDD |
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566 |
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674 |
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473 |
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+93 |
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674 |
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in |
2020 |
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210 |
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in |
1902 |
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| Maximum Dew Point |
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74 |
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62 |
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68 |
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+6 |
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77 |
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in |
2009 |
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51 |
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in |
1975 |
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| Minimum
Dew Point |
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68 |
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55 |
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59 |
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+9 |
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70 |
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in |
2015 |
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44 |
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in |
1981 |
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| Average Dew Point |
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71 |
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59 |
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63 |
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+8 |
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73 |
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in |
2009 |
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48 |
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in |
1981 |
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| Month Avg Max Dew Point |
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71.3 |
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71.1 |
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68.6 |
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+2.7 |
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73.5 |
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in |
2018 |
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58.0 |
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in |
1964 |
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| Month Avg
Min Dew Point |
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63.1 |
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63.3 |
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60.5 |
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+2.7 |
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67.2 |
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in |
2018 |
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47.4 |
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in |
1964 |
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| Month Average Dew Point |
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67.2 |
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67.2 |
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64.5 |
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+2.7 |
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70.4 |
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in |
2018 |
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52.7 |
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in |
1964 |
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| Precipitation |
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.00 |
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.00 |
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.12 |
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-.12 |
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1.14 |
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in |
1939 |
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| One Hour |
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.00 |
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.00 |
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.44 |
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in |
2001 |
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| Hourly Rate |
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.00 |
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.00 |
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1.77 |
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in |
2006 |
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| Month Precipitation |
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4.21 |
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1.06 |
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2.39 |
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+1.82 |
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9.62 |
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in |
1946 |
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.16 |
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in |
1993 |
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| Year Precipitation |
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27.04 |
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23.44 |
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28.04 |
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-1.00 |
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43.94 |
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in |
1983 |
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15.70 |
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in |
1957 |
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| Snow |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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in |
#N/A |
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| Snow Depth |
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#N/A |
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#N/A |
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#N/A |
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in |
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| Month Snow |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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in |
#N/A |
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#N/A |
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in |
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| Season Snow |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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in |
#N/A |
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#N/A |
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in |
#N/A |
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August
20, 2021 |
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|
Record |
Record |
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| Observed Daily Data |
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2021 |
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2020 |
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Norm |
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Depart |
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Highest |
Lowest |
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| Maximum Humidity |
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95% |
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94% |
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93% |
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+2% |
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100% |
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in |
2014 |
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73% |
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in |
1953 |
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| Minimum
Humidity |
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72% |
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46% |
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57% |
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+15% |
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90% |
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in |
1950 |
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33% |
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in |
1987 |
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| Average Humidity |
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84% |
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70% |
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75% |
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+9% |
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94% |
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in |
1950 |
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57% |
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in |
1975 |
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| Maximum Barometer |
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29.91 |
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30.07 |
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30.06 |
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-00.15 |
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30.49 |
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in |
1996 |
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29.77 |
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in |
1950 |
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| Minimum
Barometer |
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29.83 |
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29.98 |
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29.87 |
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-00.04 |
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30.29 |
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in |
1996 |
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29.49 |
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in |
1983 |
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| Average Barometer |
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29.87 |
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30.03 |
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29.96 |
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-00.09 |
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30.39 |
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in |
1996 |
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29.67 |
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in |
1983 |
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| Average Wind |
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5.5 |
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5.0 |
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5.6 |
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-0.1 |
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10.8 |
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in |
1950 |
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1.6 |
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in |
2012 |
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| Direction |
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W |
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SW |
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N |
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SSW |
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SSW |
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| High Wind Gust |
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23 |
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20 |
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20 |
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+3 |
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41 |
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in |
1904 |
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10 |
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in |
1973 |
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| Direction |
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SW |
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WSW |
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SSW |
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SE |
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E |
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| Maximum Water Temp |
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74.2 |
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65.7 |
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71.4 |
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+2.8 |
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76.5 |
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in |
2003 |
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65.7 |
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in |
2020 |
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| Minimum
Water Temp |
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71.6 |
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64.2 |
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68.7 |
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+2.9 |
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72.9 |
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in |
2018 |
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63.9 |
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in |
2008 |
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| Average Water Temp |
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72.9 |
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65.0 |
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70.1 |
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+2.8 |
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74.3 |
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in |
2003 |
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65.0 |
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in |
2020 |
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| Sunrise/ AM Twilight |
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6:00:23 AM |
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5:31:12 AM |
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| Sunset /
PM Twilight |
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7:36:22 PM |
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8:05:32 PM |
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| Length Of Day |
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13:35:59 |
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| Special Conditions |
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None |
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| Comments |
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| Hour-by-Hour Weather For August 20, 2021 |
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| Climate Weather for August 20 |
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| Weather History For August 20 |
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| Weather Calendar |
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| Back
To Weather Stat Page |
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