| Portsmouth Rhode Island Weather Almanac |
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| Thursday,
August 12, 2021 |
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| Mostly
Cloudy and Foggy early then Partly Cloudy, Hot and Very 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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August 12, 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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89 |
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90 |
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79 |
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+10 |
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92 |
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in |
1944 |
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63 |
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in |
1979 |
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| Minimum
Temperature |
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71 |
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74 |
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64 |
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+7 |
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74 |
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in |
2020 |
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51 |
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in |
1968 |
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| Average Temperature |
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80 |
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82 |
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72 |
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+8 |
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82 |
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in |
2020 |
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60 |
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in |
1979 |
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| Month Avg Max Temperature |
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79.5 |
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85.5 |
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79.4 |
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+0.1 |
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85.5 |
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in |
2020 |
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71.5 |
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in |
1903 |
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| Month Avg
Min Temperature |
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64.7 |
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69.5 |
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64.8 |
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-0.1 |
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71.9 |
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in |
1988 |
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56.3 |
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in |
1964 |
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| Month Average
Temperature |
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72.3 |
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77.7 |
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72.0 |
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+0.3 |
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78.6 |
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in |
1988 |
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64.8 |
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in |
1964 |
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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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5 |
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in |
1979 |
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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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18 |
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in |
1903 |
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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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15 |
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17 |
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7 |
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+8 |
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17 |
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in |
2020 |
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0 |
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in |
1983 |
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| Month CDD |
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88 |
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152 |
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91 |
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-3 |
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163 |
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in |
1988 |
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11 |
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in |
1964 |
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| Year CDD |
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478 |
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616 |
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419 |
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+59 |
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616 |
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in |
2020 |
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203 |
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in |
1902 |
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| Maximum Dew Point |
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77 |
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78 |
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69 |
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+8 |
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78 |
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in |
2020 |
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50 |
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in |
1968 |
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| Minimum
Dew Point |
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70 |
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71 |
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60 |
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+10 |
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71 |
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in |
2020 |
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44 |
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in |
2006 |
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| Average Dew Point |
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74 |
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75 |
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64 |
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+10 |
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75 |
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in |
2020 |
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47 |
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in |
1968 |
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| Month Avg Max Dew Point |
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70.6 |
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73.5 |
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69.0 |
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+1.6 |
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74.3 |
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in |
2018 |
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58.9 |
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in |
1964 |
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| Month Avg
Min Dew Point |
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62.3 |
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65.3 |
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61.1 |
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+1.3 |
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69.4 |
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in |
2003 |
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48.4 |
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in |
1964 |
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| Month Average Dew Point |
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66.5 |
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69.4 |
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64.9 |
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+1.5 |
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71.4 |
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in |
2003 |
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53.7 |
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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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2.30 |
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in |
1983 |
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| One Hour |
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.00 |
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.00 |
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.92 |
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in |
1983 |
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| Hourly Rate |
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.00 |
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.00 |
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.87 |
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in |
2016 |
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| Month Precipitation |
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3.97 |
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.12 |
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1.43 |
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+2.54 |
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6.82 |
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in |
1952 |
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T |
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in |
2005 |
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| Year Precipitation |
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26.80 |
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22.50 |
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27.08 |
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-.28 |
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43.87 |
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in |
1983 |
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15.63 |
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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
12, 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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99% |
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97% |
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94% |
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+5% |
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100% |
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in |
2018 |
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63% |
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in |
1950 |
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| Minimum
Humidity |
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65% |
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57% |
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61% |
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+4% |
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92% |
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in |
1955 |
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33% |
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in |
1974 |
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| Average Humidity |
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82% |
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77% |
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78% |
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+4% |
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96% |
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in |
1955 |
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52% |
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in |
1950 |
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| Maximum Barometer |
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29.99 |
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30.05 |
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30.05 |
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-00.06 |
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30.34 |
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in |
1986 |
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29.77 |
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in |
2008 |
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| Minimum
Barometer |
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29.93 |
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29.97 |
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29.86 |
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+00.07 |
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30.17 |
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in |
1994 |
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29.53 |
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in |
1964 |
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| Average Barometer |
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29.96 |
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30.01 |
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29.96 |
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+00.00 |
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30.23 |
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in |
1994 |
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29.68 |
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in |
1964 |
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| Average Wind |
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6.0 |
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6.7 |
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5.6 |
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+0.4 |
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12.5 |
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in |
1979 |
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1.8 |
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in |
1994 |
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| Direction |
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SW |
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SW |
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SSW |
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NNE |
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SSE |
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| High Wind Gust |
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20 |
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26 |
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20 |
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+0 |
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34 |
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in |
1983 |
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9 |
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in |
1951 |
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| Direction |
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SSW |
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SW |
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WSW |
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NNE |
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SE |
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| High
Heat Index |
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100 |
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102 |
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81 |
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+19 |
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102 |
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in |
2020 |
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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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73.7 |
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73.2 |
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72.1 |
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+1.6 |
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77.0 |
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in |
2003 |
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68.3 |
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in |
2017 |
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| Minimum
Water Temp |
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71.1 |
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70.2 |
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68.8 |
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+2.3 |
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73.8 |
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in |
2012 |
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63.6 |
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in |
2004 |
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| Average Water Temp |
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72.4 |
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71.7 |
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70.4 |
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+2.0 |
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75.0 |
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in |
2012 |
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66.9 |
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in |
2017 |
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| Sunrise/ AM Twilight |
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5:52:13 AM |
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5:22:20 AM |
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| Sunset /
PM Twilight |
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7:47:59 PM |
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8:17:52 PM |
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| Length Of Day |
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13:55:46 |
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| Special Conditions |
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Dense Fog |
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| Comments |
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| Hour-by-Hour Weather For August 12, 2021 |
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| Climate Weather for August 12 |
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| Weather History For August 12 |
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| Weather Calendar |
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| Back
To Weather Stat Page |
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