| Portsmouth Rhode Island Weather Almanac |
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| Saturday,
July 31, 2021 |
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| Clear and
Much Cooler |
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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 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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73 |
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84 |
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80 |
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-7 |
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97 |
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in |
1917 |
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63 |
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in |
1923 |
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| Minimum
Temperature |
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56 |
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67 |
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65 |
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-9 |
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73 |
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in |
1917 |
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51 |
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in |
1956 |
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| Average Temperature |
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65 |
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76 |
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73 |
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-8 |
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85 |
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in |
1917 |
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61 |
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in |
1923 |
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| Month Avg Max Temperature |
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78.9 |
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83.5 |
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79.7 |
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-0.8 |
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84.7 |
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in |
1952 |
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74.3 |
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in |
1902 |
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| Month
Avg Min Temperature |
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64.6 |
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67.2 |
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64.6 |
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-0.0 |
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69.6 |
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in |
2013 |
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59.5 |
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in |
1962 |
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| Month Average
Temperature |
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72.1 |
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75.7 |
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72.6 |
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-0.5 |
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75.9 |
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in |
2013 |
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67.6 |
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in |
1914 |
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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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4 |
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in |
1923 |
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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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34 |
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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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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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0 |
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11 |
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8 |
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-8 |
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20 |
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in |
1917 |
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0 |
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in |
2021 |
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| Month CDD |
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228 |
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331 |
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235 |
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-7 |
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339 |
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in |
2013 |
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108 |
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in |
1902 |
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| Year CDD |
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390 |
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464 |
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328 |
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+62 |
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472 |
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in |
2010 |
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133 |
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in |
1902 |
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| Maximum Dew Point |
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57 |
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73 |
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69 |
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-12 |
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76 |
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in |
1994 |
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50 |
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in |
1964 |
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| Minimum
Dew Point |
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48 |
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65 |
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61 |
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-13 |
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70 |
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in |
2004 |
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42 |
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in |
1964 |
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| Average Dew Point |
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53 |
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69 |
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65 |
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-12 |
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73 |
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in |
2004 |
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46 |
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in |
1964 |
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| Month Avg Max Dew Point |
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70.0 |
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71.8 |
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68.6 |
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+1.4 |
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73.5 |
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in |
1994 |
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61.8 |
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in |
1965 |
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| Month
Avg Min Dew Point |
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61.1 |
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63.8 |
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60.3 |
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+0.9 |
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66.7 |
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in |
2013 |
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51.8 |
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in |
1965 |
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| Month Average Dew Point |
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65.6 |
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67.8 |
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64.4 |
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+1.1 |
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69.8 |
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in |
2013 |
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56.8 |
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in |
1965 |
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| Precipitation |
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.00 |
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.06 |
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.10 |
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-.10 |
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1.38 |
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in |
1927 |
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| One Hour |
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.00 |
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.02 |
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.25 |
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in |
1996 |
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| Hourly Rate |
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.00 |
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.02 |
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2.77 |
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in |
2009 |
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| Month Precipitation |
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3.77 |
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1.36 |
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3.08 |
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+.69 |
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9.05 |
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in |
2009 |
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.36 |
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in |
1952 |
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| Year Precipitation |
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22.83 |
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22.38 |
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25.65 |
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-2.82 |
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41.55 |
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in |
1998 |
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14.33 |
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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
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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85% |
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94% |
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94% |
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-9% |
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100% |
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in |
2015 |
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63% |
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in |
1964 |
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| Minimum
Humidity |
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51% |
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66% |
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60% |
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-9% |
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89% |
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in |
2009 |
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34% |
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in |
1953 |
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| Average Humidity |
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68% |
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80% |
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77% |
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-9% |
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93% |
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in |
2009 |
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50% |
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in |
1964 |
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| Maximum Barometer |
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29.96 |
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29.86 |
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30.06 |
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-00.10 |
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30.37 |
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in |
1968 |
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29.73 |
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in |
2008 |
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| Minimum
Barometer |
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29.89 |
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29.78 |
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29.88 |
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+00.01 |
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30.22 |
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in |
2003 |
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29.56 |
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in |
2008 |
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| Average Barometer |
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29.93 |
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29.82 |
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29.97 |
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-00.04 |
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30.25 |
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in |
2003 |
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29.65 |
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in |
2008 |
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| Average Wind |
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6.0 |
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2.3 |
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5.1 |
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+0.9 |
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10.9 |
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in |
1971 |
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1.6 |
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in |
1965 |
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| Direction |
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NW |
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NNW |
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SSW |
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SSW |
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S |
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| High Wind Gust |
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22 |
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11 |
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19 |
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+3 |
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36 |
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in |
1954 |
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9 |
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in |
1998 |
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| Direction |
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SW |
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WNW |
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SSE |
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SSW |
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N |
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| High
Heat Index |
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73 |
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89 |
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82 |
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-9 |
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97 |
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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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73.2 |
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68.4 |
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71.6 |
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+1.6 |
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75.4 |
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in |
2006 |
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66.7 |
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in |
1996 |
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| Minimum
Water Temp |
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71.8 |
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63.5 |
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68.4 |
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+3.4 |
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71.8 |
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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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72.5 |
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66.0 |
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70.0 |
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+2.5 |
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73.0 |
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in |
2013 |
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65.9 |
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in |
1996 |
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| Sunrise/ AM Twilight |
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5:40:10 AM |
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5:09:04 AM |
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| Sunset /
PM Twilight |
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8:03:01 PM |
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8:34:07 PM |
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| Length Of Day |
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14:22:51 |
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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 July 31, 2021 |
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| Climate Weather for July 31 |
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| Weather History For July 31 |
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| Weather Calendar |
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| Back
To Weather Stat Page |
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