| Portsmouth Rhode Island Weather Almanac |
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| Tuesday,
September 12, 2023 |
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| Cloudy to
Partly Cloudy PM, Light Winds, Warm and Continued Very Muggy |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2023 |
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September 12, 2023 |
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Record |
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Record |
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| Observed Daily Data |
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2023 |
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2022 |
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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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72 |
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73 |
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+8 |
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87 |
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in |
1961 |
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60 |
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in |
1950 |
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| Minimum
Temperature |
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68 |
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63 |
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58 |
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+10 |
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71 |
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in |
1947 |
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45 |
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in |
1985 |
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| Average Temperature |
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75 |
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68 |
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66 |
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+9 |
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79 |
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in |
1961 |
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54 |
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in |
1967 |
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| Month Avg Max Temperature |
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82.8 |
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76.5 |
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74.8 |
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+8.0 |
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85.2 |
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in |
1983 |
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68.4 |
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in |
1917 |
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| Month
Avg Min Temperature |
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66.7 |
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60.4 |
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59.9 |
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+6.8 |
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66.8 |
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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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75.0 |
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68.7 |
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67.4 |
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+7.6 |
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75.3 |
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in |
1961 |
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61.9 |
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in |
1994 |
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| High
Heat Index |
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86 |
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75 |
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74 |
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+12 |
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92 |
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in |
1952 |
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| Low Wind
Chill |
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41 |
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in |
1985 |
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| Heating Degree Days |
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0 |
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0 |
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1 |
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-1 |
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11 |
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in |
1967 |
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0 |
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in |
2023 |
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| Month Heating DD |
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1 |
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2 |
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12 |
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-11 |
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46 |
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in |
1917 |
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0 |
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in |
2015 |
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| Season
Heating DD |
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1 |
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2 |
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12 |
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-11 |
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81 |
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in |
1914 |
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0 |
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in |
2015 |
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| Cooling Degree Days |
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10 |
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3 |
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2 |
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+8 |
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14 |
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in |
1961 |
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0 |
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in |
2020 |
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| Month Cooling DD |
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121 |
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46 |
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41 |
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+80 |
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124 |
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in |
1961 |
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0 |
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in |
1893 |
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| Year Cooling DD |
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693 |
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757 |
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578 |
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+115 |
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835 |
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in |
2020 |
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279 |
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in |
1902 |
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| Maximum Dew Point |
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74 |
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71 |
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64 |
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+10 |
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74 |
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in |
2023 |
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45 |
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in |
1985 |
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| Minimum
Dew Point |
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68 |
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63 |
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54 |
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+14 |
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69 |
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in |
1961 |
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34 |
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in |
2004 |
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| Average Dew Point |
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71 |
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67 |
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59 |
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+12 |
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71 |
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in |
2023 |
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42 |
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in |
1985 |
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| Month Avg Max Dew Point |
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74.0 |
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65.5 |
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64.8 |
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+9.3 |
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74.0 |
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in |
2023 |
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55.8 |
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in |
1984 |
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| Month
Avg Min Dew Point |
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65.6 |
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56.7 |
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55.5 |
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+10.1 |
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65.6 |
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in |
2023 |
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43.9 |
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in |
1967 |
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| Month Average Dew Point |
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69.9 |
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61.4 |
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60.1 |
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+9.8 |
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69.9 |
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in |
2023 |
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50.0 |
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in |
1967 |
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| Precipitation |
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T |
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.61 |
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.12 |
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+.00 |
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1.19 |
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in |
1960 |
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| One Hour
Rain |
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T |
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.16 |
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.34 |
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in |
1960 |
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| Half
Hour Rain |
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.00 |
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.09 |
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.20 |
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in |
2019 |
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| Hourly Rain Rate |
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.00 |
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1.34 |
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1.34 |
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in |
2022 |
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| Month Precipitation |
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1.61 |
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1.72 |
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1.38 |
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+.23 |
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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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37.23 |
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27.14 |
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30.66 |
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+6.57 |
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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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| Snow Depth |
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| Month Snow |
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| Season 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 |
1996 |
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0.0 |
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in |
1998 |
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September 12, 2023 |
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|
Record |
Record |
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| Observed Daily Data |
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2023 |
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2022 |
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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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99% |
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91% |
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+8% |
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100% |
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in |
2018 |
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74% |
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in |
2002 |
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| Minimum
Humidity |
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78% |
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97% |
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57% |
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+21% |
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97% |
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in |
2022 |
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23% |
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in |
2004 |
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| Average Humidity |
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89% |
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98% |
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74% |
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+15% |
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98% |
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in |
2022 |
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55% |
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in |
2002 |
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| Maximum Barometer |
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30.00 |
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30.01 |
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30.13 |
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-00.13 |
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30.52 |
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in |
1966 |
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29.77 |
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in |
1968 |
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| Minimum
Barometer |
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29.95 |
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29.79 |
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29.90 |
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+00.05 |
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30.30 |
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in |
2003 |
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28.66 |
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in |
1960 |
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| Average Barometer |
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29.98 |
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29.90 |
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30.01 |
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-00.04 |
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30.34 |
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in |
2012 |
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29.29 |
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in |
1960 |
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| Average
Wind |
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3.0 |
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1.8 |
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6.3 |
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-3.3 |
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22.8 |
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in |
1960 |
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1.8 |
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in |
2022 |
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| Direction |
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SSW |
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ENE |
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SSW |
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SSE |
ENE |
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| High
Wind Gust |
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13 |
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7 |
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22 |
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-9 |
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81 |
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in |
1960 |
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7 |
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in |
2022 |
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| Direction |
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S |
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NE |
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SSW |
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SSE |
NE |
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| Maximum Water Temp |
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71.8 |
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71.2 |
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69.4 |
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+2.4 |
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74.3 |
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in |
2023 |
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65.1 |
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in |
2006 |
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| Minimum
Water Temp |
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70.9 |
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69.6 |
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67.5 |
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+3.4 |
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71.4 |
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in |
2023 |
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63.3 |
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in |
2006 |
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| Average Water Temp |
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71.4 |
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70.4 |
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68.5 |
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+2.9 |
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72.9 |
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in |
2023 |
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64.2 |
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in |
2006 |
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| Sunrise/ AM Twilight |
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6:22:04 AM |
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5:55:10 AM |
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| Sunset /
PM Twilight |
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6:59:55 PM |
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7:27:34 PM |
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| Length Of Day |
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12:37:51 |
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| Special Conditions |
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Fog |
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| Comments |
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Record High Dew Points |
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| Hour-by-Hour Weather For September 12, 2023 |
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| Climate Weather for September 12 |
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| Weather History For September 12 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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