| Portsmouth Rhode Island Weather Almanac |
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| Tuesday, July
20, 2021 |
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| Partly
Cloudy early, Hazy Day to Clear and Light Fog PM, Light Winds, Warm and Humid |
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| Climate Normal
Period |
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Climate Record Period |
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| 1991- 2020 |
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1893 - 2021 |
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July 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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90 |
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80 |
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+4 |
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94 |
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in |
2019 |
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66 |
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in |
1902 |
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| Minimum
Temperature |
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67 |
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71 |
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65 |
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+2 |
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74 |
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in |
2019 |
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55 |
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in |
2000 |
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| Average Temperature |
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76 |
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81 |
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73 |
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+3 |
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84 |
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in |
2019 |
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63 |
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in |
1903 |
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| Month Avg Max Temperature |
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78.5 |
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80.9 |
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79.6 |
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-1.1 |
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84.6 |
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in |
1955 |
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74.6 |
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in |
1902 |
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| Month
Avg Min Temperature |
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65.4 |
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65.3 |
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64.4 |
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+1.1 |
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71.3 |
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in |
2013 |
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57.9 |
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in |
1962 |
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| Month Average
Temperature |
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72.3 |
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73.4 |
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72.4 |
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-0.1 |
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77.5 |
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in |
2013 |
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67.7 |
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in |
2009 |
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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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2 |
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in |
1903 |
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0 |
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in |
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| Month 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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23 |
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in |
1914 |
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0 |
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in |
2020 |
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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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23 |
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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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11 |
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16 |
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8 |
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+3 |
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19 |
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in |
2019 |
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0 |
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in |
2012 |
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| Month CDD |
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154 |
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168 |
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147 |
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+7 |
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250 |
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in |
2013 |
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61 |
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in |
1895 |
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| Year CDD |
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316 |
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301 |
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240 |
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+76 |
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362 |
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in |
2010 |
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93 |
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in |
1902 |
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| Maximum Dew Point |
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74 |
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79 |
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69 |
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+5 |
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79 |
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in |
2020 |
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51 |
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in |
1965 |
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| Minimum
Dew Point |
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66 |
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69 |
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61 |
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+5 |
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72 |
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in |
2019 |
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43 |
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in |
1965 |
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| Average Dew Point |
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70 |
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74 |
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65 |
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+5 |
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76 |
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in |
2019 |
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47 |
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in |
1965 |
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| Month Avg Max Dew Point |
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71.4 |
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70.8 |
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68.4 |
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+3.1 |
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74.3 |
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in |
2013 |
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60.8 |
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in |
1978 |
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| Month
Avg Min Dew Point |
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63.1 |
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62.9 |
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59.9 |
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+3.3 |
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68.9 |
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in |
2013 |
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51.0 |
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in |
1962 |
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| Month Average Dew Point |
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67.3 |
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66.9 |
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64.1 |
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+3.2 |
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71.6 |
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in |
2013 |
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55.9 |
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in |
1962 |
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| Precipitation |
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.00 |
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.03 |
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.09 |
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-.09 |
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1.57 |
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in |
1988 |
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| One Hour |
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.00 |
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.03 |
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.33 |
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in |
1982 |
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| Hourly Rate |
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.00 |
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.02 |
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.37 |
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in |
2014 |
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| Month Precipitation |
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3.53 |
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1.09 |
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2.00 |
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+1.53 |
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5.31 |
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in |
2009 |
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.16 |
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in |
2002 |
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| Year Precipitation |
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22.59 |
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22.11 |
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24.57 |
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-1.98 |
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40.76 |
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in |
1998 |
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13.52 |
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in |
1957 |
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| 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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| Snow Depth |
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0 |
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0 |
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0 |
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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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July
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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97% |
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96% |
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92% |
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+5% |
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100% |
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in |
2004 |
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64% |
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in |
1957 |
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| Minimum
Humidity |
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69% |
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63% |
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59% |
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+10% |
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92% |
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in |
1988 |
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30% |
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in |
1957 |
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| Average Humidity |
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83% |
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80% |
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76% |
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+7% |
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96% |
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in |
1988 |
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47% |
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in |
1957 |
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| Maximum Barometer |
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29.92 |
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29.89 |
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30.01 |
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-00.09 |
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30.24 |
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in |
2006 |
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29.66 |
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in |
1963 |
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| Minimum
Barometer |
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29.83 |
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29.78 |
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29.82 |
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+00.01 |
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30.15 |
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in |
1956 |
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29.48 |
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in |
1963 |
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| Average Barometer |
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29.88 |
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29.84 |
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29.92 |
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-00.04 |
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30.20 |
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in |
1956 |
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29.57 |
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in |
1963 |
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| Average Wind |
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3.9 |
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7.3 |
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5.8 |
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-1.9 |
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11.3 |
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in |
1974 |
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2.1 |
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in |
2009 |
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| Direction |
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WNW |
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SW |
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SW |
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N |
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SE |
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| High Wind Gust |
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13 |
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24 |
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20 |
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-7 |
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34 |
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in |
1996 |
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10 |
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in |
1967 |
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| Direction |
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SSW |
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WSW |
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SSW |
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WNW |
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N |
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| High
Heat Index |
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91 |
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103 |
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82 |
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+9 |
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113 |
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in |
2019 |
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| Low 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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74.2 |
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69.1 |
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71.2 |
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+3.0 |
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75.3 |
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in |
2013 |
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67.5 |
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in |
2000 |
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| Minimum
Water Temp |
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72.5 |
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66.0 |
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67.5 |
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+5.0 |
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72.5 |
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in |
2021 |
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64.2 |
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in |
2003 |
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| Average Water Temp |
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73.4 |
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67.6 |
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69.3 |
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+4.0 |
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73.4 |
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in |
2021 |
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66.5 |
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in |
2000 |
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| Sunrise/ AM Twilight |
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5:29:48 AM |
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4:57:34 AM |
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| Sunset /
PM Twilight |
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8:13:35 PM |
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8:45:49 PM |
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| Length Of Day |
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14:43:47 |
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| Special Conditions |
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Fog, Haze |
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| Comments |
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Thick haze from wild fires out west |
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| Hour-by-Hour Weather For July 20, 2021 |
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| Climate Weather for July 20 |
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| Weather History For July 20 |
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| Weather Calendar |
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| Back
To Weather Stat Page |
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