| Portsmouth Rhode Island Weather Almanac |
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| Monday,
September 13, 2021 |
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| Partly
Cloudy To Clear PM, Warmer |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2021 |
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September 13, 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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81 |
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75 |
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73 |
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+8 |
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88 |
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in |
1952 |
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60 |
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in |
1965 |
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| Minimum
Temperature |
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62 |
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52 |
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58 |
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+4 |
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70 |
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in |
1971 |
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43 |
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in |
1943 |
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| Average Temperature |
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72 |
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64 |
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65 |
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+7 |
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77 |
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in |
1961 |
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55 |
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in |
1985 |
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| Month Avg Max Temperature |
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76.0 |
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77.9 |
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74.7 |
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+1.3 |
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84.5 |
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in |
1983 |
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68.7 |
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in |
1917 |
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| Month Avg
Min Temperature |
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61.2 |
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61.7 |
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59.8 |
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+1.5 |
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66.9 |
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in |
1961 |
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51.2 |
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in |
1893 |
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| Month Average
Temperature |
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68.9 |
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70.1 |
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67.2 |
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+1.7 |
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75.5 |
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in |
1961 |
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61.9 |
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in |
1893 |
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| High
Heat Index |
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80 |
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75 |
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74 |
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+6 |
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92 |
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in |
1952 |
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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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1 |
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2 |
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-2 |
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10 |
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in |
1985 |
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0 |
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in |
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| Month HDD |
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1 |
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3 |
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14 |
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-13 |
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48 |
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in |
1914 |
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0 |
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in |
2015 |
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| Season HDD |
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10 |
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3 |
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21 |
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-11 |
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88 |
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in |
1914 |
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0 |
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in |
2015 |
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| CDD |
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7 |
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0 |
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2 |
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+5 |
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12 |
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in |
1961 |
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0 |
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in |
2020 |
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| Month CDD |
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52 |
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69 |
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43 |
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+9 |
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136 |
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in |
1961 |
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0 |
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in |
1893 |
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| Year CDD |
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735 |
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835 |
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580 |
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+155 |
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835 |
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in |
2020 |
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280 |
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in |
1902 |
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| Maximum Dew Point |
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70 |
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65 |
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63 |
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+7 |
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73 |
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in |
1971 |
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45 |
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in |
1985 |
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| Minimum
Dew Point |
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54 |
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50 |
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54 |
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+0 |
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68 |
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in |
1971 |
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33 |
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in |
1985 |
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| Average Dew Point |
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62 |
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58 |
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58 |
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+4 |
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71 |
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in |
1971 |
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39 |
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in |
1985 |
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| Month Avg Max Dew Point |
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66.5 |
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67.5 |
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64.6 |
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+1.9 |
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70.4 |
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in |
1961 |
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55.3 |
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in |
1967 |
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| Month Avg
Min Dew Point |
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57.0 |
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57.2 |
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55.4 |
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+1.6 |
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63.7 |
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in |
1961 |
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43.7 |
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in |
1967 |
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| Month Average Dew Point |
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62.0 |
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62.5 |
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59.9 |
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+2.1 |
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67.0 |
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in |
1961 |
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49.5 |
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in |
1967 |
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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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2.42 |
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in |
1987 |
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| One Hour |
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.00 |
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.00 |
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1.52 |
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in |
2018 |
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| Hourly Rate |
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.00 |
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.00 |
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5.01 |
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in |
2015 |
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| Month Precipitation |
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7.60 |
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.66 |
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1.50 |
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+6.10 |
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7.60 |
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in |
2021 |
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T |
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in |
2005 |
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| Year Precipitation |
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36.70 |
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24.69 |
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30.78 |
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+5.92 |
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46.33 |
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in |
1998 |
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17.36 |
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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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September
13, 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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93% |
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97% |
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93% |
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+0% |
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100% |
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in |
2018 |
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68% |
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in |
1955 |
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| Minimum
Humidity |
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48% |
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58% |
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57% |
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-9% |
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93% |
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in |
1987 |
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34% |
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in |
1991 |
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| Average Humidity |
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71% |
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78% |
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75% |
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-4% |
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97% |
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in |
1987 |
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52% |
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in |
1955 |
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| Maximum Barometer |
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30.04 |
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30.27 |
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30.13 |
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-00.09 |
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30.51 |
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in |
1985 |
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29.65 |
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in |
1960 |
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| Minimum
Barometer |
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29.91 |
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30.01 |
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29.93 |
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-00.02 |
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30.33 |
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in |
1992 |
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29.45 |
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in |
1960 |
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| Average Barometer |
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29.98 |
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30.14 |
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30.03 |
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-00.05 |
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30.40 |
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in |
2019 |
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29.55 |
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in |
1960 |
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| Average Wind |
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6.2 |
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4.0 |
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5.8 |
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+0.4 |
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12.1 |
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in |
1974 |
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1.1 |
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in |
2006 |
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| Direction |
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NW |
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S |
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S |
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WSW |
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W |
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| High Wind Gust |
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23 |
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18 |
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20 |
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+3 |
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35 |
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in |
1953 |
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11 |
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in |
1998 |
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| Direction |
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NNW |
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SW |
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SSW |
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SSE |
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NE |
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| Maximum Water Temp |
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71.2 |
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70.7 |
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69.1 |
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+2.1 |
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72.1 |
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in |
1999 |
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65.5 |
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in |
2006 |
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| Minimum
Water Temp |
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69.1 |
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68.2 |
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67.0 |
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+2.1 |
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70.0 |
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in |
1999 |
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62.9 |
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in |
2005 |
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| Average Water Temp |
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70.2 |
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69.5 |
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68.0 |
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+2.1 |
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71.1 |
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in |
1999 |
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64.7 |
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in |
2006 |
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| Sunrise/ AM Twilight |
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6:22:39 AM |
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5:56:13 AM |
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| Sunset /
PM Twilight |
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6:59:22 PM |
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7:25:48 PM |
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| Length Of Day |
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12:36:43 |
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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 September 13, 2021 |
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| Climate Weather for September 13 |
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| Weather History For September 13 |
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| Weather Calendar |
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| Back
To Weather Stat Page |
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