Portsmouth Rhode Island Weather Almanac |
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Saturday,
September 16, 2023 |
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Cloudy, Rainy
Morning then Partly Cloudy PM, Gusty Winds from Hurricane Lee, Continued Cool |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2023 |
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September 16, 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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70 |
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71 |
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72 |
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-2 |
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87 |
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in |
1941 |
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57 |
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in |
1954 |
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Minimum
Temperature |
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58 |
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50 |
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57 |
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+1 |
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70 |
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in |
1915 |
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44 |
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in |
1988 |
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Average Temperature |
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64 |
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61 |
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65 |
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-1 |
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78 |
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in |
1915 |
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54 |
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in |
1984 |
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Month Avg Max Temperature |
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80.5 |
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75.6 |
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74.3 |
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+6.3 |
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81.9 |
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in |
1961 |
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68.6 |
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in |
1917 |
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Month
Avg Min Temperature |
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65.3 |
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60.1 |
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59.4 |
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+5.9 |
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65.8 |
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in |
1961 |
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52.8 |
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in |
1893 |
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Month Average
Temperature |
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73.1 |
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68.0 |
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66.8 |
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+6.3 |
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74.0 |
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in |
1961 |
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61.5 |
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in |
1963 |
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High
Heat Index |
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69 |
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68 |
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72 |
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-3 |
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92 |
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in |
1991 |
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Low
Wind Chill |
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42 |
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in |
1984 |
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Heating Degree Days |
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1 |
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4 |
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2 |
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-1 |
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11 |
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in |
1984 |
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0 |
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in |
2021 |
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Month Heating DD |
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5 |
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7 |
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20 |
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-15 |
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79 |
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in |
1913 |
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0 |
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in |
2015 |
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Season
Heating DD |
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5 |
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7 |
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20 |
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-15 |
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95 |
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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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0 |
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0 |
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2 |
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-2 |
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13 |
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in |
1915 |
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0 |
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in |
2023 |
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Month Cooling DD |
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135 |
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55 |
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49 |
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+86 |
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148 |
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in |
1961 |
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7 |
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in |
1975 |
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Year Cooling DD |
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707 |
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766 |
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586 |
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+121 |
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837 |
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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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56 |
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52 |
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63 |
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-7 |
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73 |
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in |
1999 |
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43 |
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in |
1966 |
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Minimum
Dew Point |
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53 |
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44 |
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53 |
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+0 |
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68 |
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in |
2005 |
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32 |
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in |
1984 |
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Average Dew Point |
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55 |
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48 |
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58 |
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-3 |
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70 |
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in |
2005 |
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39 |
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in |
1984 |
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Month Avg Max Dew Point |
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71.5 |
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65.0 |
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64.3 |
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+7.2 |
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71.5 |
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in |
2023 |
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55.2 |
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in |
1967 |
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Month
Avg Min Dew Point |
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63.3 |
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55.8 |
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54.9 |
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+8.3 |
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63.3 |
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in |
2023 |
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44.3 |
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in |
1967 |
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Month Average Dew Point |
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67.6 |
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60.8 |
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59.6 |
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+8.0 |
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67.6 |
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in |
2023 |
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49.7 |
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in |
1967 |
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Precipitation |
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.20 |
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.00 |
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.14 |
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+.06 |
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6.20 |
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in |
1932 |
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One
Hour Rain |
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.06 |
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.00 |
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.79 |
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in |
2021 |
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Half
Hour Rain |
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.03 |
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.00 |
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.77 |
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in |
2021 |
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Hourly Rain Rate |
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.08 |
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.00 |
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8.35 |
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in |
2021 |
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Month Precipitation |
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2.48 |
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3.23 |
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1.91 |
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+.57 |
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8.49 |
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in |
2021 |
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T |
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in |
1983 |
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Year Precipitation |
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38.10 |
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28.65 |
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31.19 |
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+6.91 |
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46.35 |
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in |
1998 |
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17.49 |
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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 16, 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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88% |
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84% |
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93% |
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-5% |
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100% |
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in |
2017 |
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81% |
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in |
2011 |
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Minimum
Humidity |
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59% |
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39% |
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59% |
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+0% |
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95% |
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in |
2004 |
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34% |
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in |
1984 |
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Average Humidity |
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74% |
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62% |
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76% |
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-2% |
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98% |
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in |
2004 |
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59% |
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in |
1984 |
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Maximum Barometer |
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29.83 |
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30.20 |
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30.14 |
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-00.31 |
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30.54 |
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in |
1988 |
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29.72 |
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in |
1953 |
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Minimum
Barometer |
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29.69 |
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30.10 |
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29.93 |
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-00.24 |
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30.27 |
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in |
2016 |
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29.20 |
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in |
1999 |
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Average Barometer |
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29.76 |
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30.15 |
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30.04 |
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-00.28 |
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30.36 |
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in |
1988 |
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29.63 |
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in |
1999 |
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Average
Wind |
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12.6 |
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5.4 |
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5.9 |
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+6.7 |
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17.3 |
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in |
1999 |
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1.3 |
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in |
2006 |
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Direction |
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WNW |
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NNW |
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WNW |
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ENE |
N |
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High
Wind Gust |
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33 |
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19 |
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21 |
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+12 |
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45 |
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in |
1999 |
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11 |
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in |
2006 |
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Direction |
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WNW |
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NW |
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WNW |
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SE |
WNW |
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Maximum Water Temp |
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70.0 |
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71.6 |
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68.5 |
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+1.5 |
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71.6 |
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in |
2021 |
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65.8 |
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in |
2007 |
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Minimum
Water Temp |
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69.1 |
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69.8 |
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66.8 |
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+2.3 |
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70.2 |
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in |
1999 |
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64.2 |
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in |
2001 |
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Average Water Temp |
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69.6 |
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70.7 |
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67.7 |
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+1.9 |
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70.7 |
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in |
2021 |
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65.1 |
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in |
2007 |
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Sunrise/ AM Twilight |
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6:26:08 AM |
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5:59:21 AM |
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Sunset
/ PM Twilight |
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6:53:00 PM |
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7:20:32 PM |
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Length Of Day |
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12:26:52 |
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Special Conditions |
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None |
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Comments |
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Hurricane Lee passes to the east of Rhode
Island |
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Hour-by-Hour Weather For September 16, 2023 |
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Climate Weather for September 16 |
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Weather History For September 16 |
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Weather Calendar |
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Back To Weather Stat Page |
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