| Portsmouth Rhode Island Weather Almanac |
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| Tuesday,
August 31, 2021 |
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| Mostly
Cloudy early then Partly Cloudy, Light Winds and Warm |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2021 |
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August 31, 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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83 |
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77 |
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77 |
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+6 |
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93 |
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in |
1973 |
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62 |
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in |
1903 |
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| Minimum
Temperature |
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69 |
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54 |
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62 |
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+7 |
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72 |
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in |
2005 |
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41 |
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in |
1965 |
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| Average Temperature |
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76 |
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66 |
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70 |
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+6 |
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82 |
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in |
1973 |
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53 |
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in |
1965 |
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| Month Avg Max Temperature |
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81.5 |
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82.7 |
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78.6 |
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+2.9 |
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82.8 |
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in |
2016 |
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73.0 |
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in |
1903 |
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| Month Avg
Min Temperature |
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66.9 |
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66.3 |
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63.7 |
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+3.2 |
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68.0 |
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in |
2018 |
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57.6 |
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in |
1964 |
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| Month Average
Temperature |
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74.5 |
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74.7 |
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71.2 |
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+3.3 |
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75.3 |
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in |
2018 |
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66.1 |
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in |
1964 |
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| High
Heat Index |
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85 |
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76 |
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79 |
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+6 |
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104 |
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in |
1973 |
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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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1 |
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-1 |
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12 |
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in |
1965 |
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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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4 |
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-4 |
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38 |
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in |
1905 |
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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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7 |
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+2 |
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40 |
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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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1 |
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5 |
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+6 |
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17 |
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in |
1973 |
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0 |
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in |
2009 |
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| Month CDD |
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293 |
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302 |
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209 |
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+84 |
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320 |
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in |
2018 |
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61 |
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in |
1964 |
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| Year CDD |
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683 |
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766 |
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537 |
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+146 |
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766 |
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in |
2020 |
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253 |
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in |
1902 |
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| Maximum Dew Point |
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72 |
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59 |
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66 |
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+6 |
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75 |
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in |
2010 |
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49 |
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in |
1965 |
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| Minimum
Dew Point |
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63 |
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50 |
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57 |
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+6 |
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72 |
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in |
2005 |
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33 |
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in |
1965 |
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| Average Dew Point |
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68 |
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55 |
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61 |
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+7 |
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73 |
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in |
2005 |
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41 |
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in |
1965 |
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| Month Avg Max Dew Point |
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72.5 |
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70.4 |
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67.9 |
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+4.6 |
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72.5 |
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in |
2021 |
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60.8 |
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in |
1964 |
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| Month Avg
Min Dew Point |
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64.1 |
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61.5 |
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59.6 |
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+4.5 |
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65.0 |
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in |
2018 |
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50.8 |
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in |
1964 |
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| Month Average Dew Point |
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68.3 |
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65.9 |
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63.7 |
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+4.6 |
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68.6 |
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in |
2018 |
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55.8 |
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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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.11 |
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-.11 |
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2.60 |
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in |
1954 |
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| One Hour |
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.00 |
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.00 |
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.80 |
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in |
1954 |
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| Hourly Rate |
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.00 |
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.00 |
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3.89 |
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in |
2014 |
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| Month Precipitation |
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6.27 |
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1.65 |
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3.63 |
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+2.64 |
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11.81 |
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in |
1985 |
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.33 |
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in |
1993 |
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| Year Precipitation |
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29.10 |
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24.03 |
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29.28 |
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-.18 |
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45.30 |
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in |
1998 |
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16.54 |
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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
31, 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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98% |
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93% |
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93% |
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+5% |
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100% |
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in |
2004 |
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62% |
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in |
1953 |
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| Minimum
Humidity |
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56% |
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43% |
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58% |
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-2% |
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90% |
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in |
1950 |
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31% |
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in |
1968 |
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| Average Humidity |
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77% |
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68% |
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76% |
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+1% |
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95% |
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in |
1950 |
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50% |
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in |
1953 |
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| Maximum Barometer |
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29.78 |
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30.17 |
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30.10 |
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-00.32 |
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30.54 |
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in |
2002 |
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29.78 |
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in |
2021 |
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| Minimum
Barometer |
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29.73 |
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29.94 |
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29.89 |
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-00.16 |
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30.29 |
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in |
2002 |
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28.65 |
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in |
1954 |
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| Average Barometer |
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29.76 |
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30.06 |
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30.00 |
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-00.24 |
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30.42 |
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in |
2002 |
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29.26 |
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in |
1954 |
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| Average Wind |
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4.0 |
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3.3 |
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6.2 |
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-2.2 |
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27.5 |
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in |
1954 |
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1.3 |
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in |
1990 |
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| Direction |
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NW |
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S |
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SSW |
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SW |
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SW |
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| High Wind Gust |
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17 |
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17 |
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22 |
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-5 |
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109 |
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in |
1954 |
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11 |
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in |
1950 |
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| Direction |
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NW |
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S |
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SSW |
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ESE |
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SE |
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| Maximum Water Temp |
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76.3 |
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69.4 |
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70.9 |
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+5.4 |
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76.3 |
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in |
2021 |
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66.9 |
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in |
2003 |
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| Minimum
Water Temp |
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73.9 |
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63.5 |
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68.5 |
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+5.4 |
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73.9 |
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in |
2021 |
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63.5 |
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in |
2020 |
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| Average Water Temp |
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75.1 |
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66.5 |
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69.7 |
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+5.4 |
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75.1 |
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in |
2021 |
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65.6 |
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in |
2003 |
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| Sunrise/ AM Twilight |
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6:11:32 AM |
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5:43:10 AM |
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| Sunset /
PM Twilight |
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7:18:54 PM |
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7:47:16 PM |
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| Length Of Day |
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13:07:22 |
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| Special Conditions |
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Fog |
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| Comments |
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| Hour-by-Hour Weather For August 31, 2021 |
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| Climate Weather for August 31 |
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| Weather History For August 31 |
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| Weather Calendar |
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| Back
To Weather Stat Page |
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