| Portsmouth Rhode Island Weather Almanac |
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| Saturday, June
21, 2025 |
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| Clear to
Partly Cloudy PM, Continued Warm |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2025 |
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Jun 21 |
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Record |
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Record |
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| Observed Daily Data |
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2025 |
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2024 |
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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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89 |
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75 |
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+6 |
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93 |
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in |
2012 |
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60 |
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in |
1967 |
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| Minimum
Temperature |
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62 |
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67 |
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60 |
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+2 |
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73 |
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in |
2012 |
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48 |
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in |
1979 |
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| Average Temperature |
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72 |
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78 |
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68 |
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+4 |
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83 |
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in |
2012 |
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56 |
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in |
1918 |
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| Month Avg Max Temperature |
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74.2 |
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76.5 |
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72.4 |
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+1.8 |
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78.1 |
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in |
1925 |
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65.5 |
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in |
1907 |
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| Month Avg
Min Temperature |
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58.7 |
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59.1 |
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56.3 |
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+2.4 |
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59.6 |
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in |
2001 |
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50.2 |
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in |
1907 |
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| Month Average
Temperature |
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66.7 |
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68.1 |
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64.5 |
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+2.2 |
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68.8 |
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in |
1925 |
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58.0 |
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in |
1907 |
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| High Heat
Index |
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83 |
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102 |
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102 |
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in |
2024 |
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| Low Wind
Chill |
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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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9 |
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in |
1918 |
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0 |
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in |
Many |
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| Month Heating DD |
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24 |
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5 |
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44 |
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-20 |
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159 |
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in |
1907 |
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3 |
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in |
1899 |
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| Season
Heating DD |
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5026 |
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4952 |
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5503 |
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-477 |
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6619 |
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in |
1905 |
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4433 |
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in |
1932 |
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| Cooling Degree Days |
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7 |
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13 |
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4 |
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+3 |
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18 |
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in |
2012 |
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0 |
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in |
All |
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| Month Cooling DD |
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60 |
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70 |
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40 |
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+20 |
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96 |
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in |
1925 |
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2 |
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in |
2003 |
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| Year Cooling DD |
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60 |
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70 |
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40 |
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+20 |
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106 |
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in |
2001 |
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2 |
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in |
2003 |
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| Maximum Dew Point |
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68 |
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77 |
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65 |
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+3 |
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77 |
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in |
2024 |
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45 |
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in |
1968 |
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| Minimum
Dew Point |
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57 |
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65 |
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55 |
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+2 |
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66 |
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in |
2012 |
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36 |
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in |
1986 |
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| Average Dew Point |
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63 |
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71 |
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60 |
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+3 |
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71 |
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in |
2024 |
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43 |
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in |
1968 |
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| Month Avg Max Dew Point |
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64.8 |
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65.4 |
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61.5 |
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+3.3 |
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65.4 |
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in |
2024 |
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53.4 |
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in |
1965 |
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| Month Avg
Min Dew Point |
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54.6 |
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54.8 |
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51.7 |
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+3.0 |
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55.5 |
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in |
2010 |
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43.5 |
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in |
1958 |
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| Month Average Dew Point |
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59.7 |
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60.1 |
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56.5 |
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+3.2 |
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60.1 |
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in |
1996 |
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48.8 |
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in |
1965 |
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| Precipitation |
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.00 |
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1.00 |
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.12 |
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-.12 |
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1.01 |
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in |
1962 |
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| One Hour
Rain |
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.00 |
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.69 |
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.85 |
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in |
1955 |
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| Half Hour
Rain |
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.00 |
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.58 |
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.58 |
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in |
2024 |
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| Hourly Rain Rate |
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.00 |
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5.10 |
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5.10 |
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in |
2024 |
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| Month Precipitation |
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.80 |
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1.77 |
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2.49 |
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-1.69 |
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8.90 |
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in |
1982 |
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.01 |
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in |
1949 |
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| Year Precipitation |
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21.19 |
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30.93 |
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21.53 |
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-.34 |
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38.24 |
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in |
1998 |
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12.67 |
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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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#N/A |
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#N/A |
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0.0 |
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in |
1900 |
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0.0 |
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in |
Many |
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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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0 |
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in |
2020 |
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0 |
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in |
Many |
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| Month Snow |
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0.0 |
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0.0 |
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T |
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#N/A |
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in |
#N/A |
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0.0 |
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in |
Many |
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| Season Snow |
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11.9 |
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12.7 |
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33.8 |
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21.9 |
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84.1 |
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in |
1996 |
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5.0 |
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in |
1998 |
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Jun 21 |
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Record |
Record |
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| Observed Daily Data |
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2025 |
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2024 |
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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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89% |
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99% |
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91% |
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-2% |
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100% |
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in |
2021 |
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61% |
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in |
1954 |
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| Minimum
Humidity |
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55% |
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68% |
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57% |
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-2% |
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88% |
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in |
2021 |
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29% |
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in |
1957 |
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| Average Humidity |
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72% |
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84% |
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74% |
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-2% |
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94% |
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in |
2021 |
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52% |
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in |
1968 |
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| Maximum Barometer |
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30.10 |
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30.22 |
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30.01 |
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+00.09 |
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30.52 |
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in |
2002 |
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29.56 |
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in |
2009 |
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| Minimum
Barometer |
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29.96 |
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30.11 |
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29.82 |
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+00.14 |
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30.37 |
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in |
2002 |
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29.41 |
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in |
2019 |
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| Average Barometer |
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30.03 |
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30.17 |
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29.91 |
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+00.12 |
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30.45 |
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in |
2002 |
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29.52 |
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in |
2009 |
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| Average
Wind |
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5.4 |
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4.0 |
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5.9 |
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-0.5 |
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13.3 |
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in |
1956 |
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1.4 |
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in |
1989 |
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| Direction |
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SSW |
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S |
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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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25 |
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14 |
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22 |
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+4 |
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53 |
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in |
1955 |
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7 |
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in |
1987 |
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| Direction |
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SSW |
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SSE |
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SSW |
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NW |
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S |
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| Maximum Water Temp |
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68.4 |
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69.8 |
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66.3 |
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+2.1 |
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72.0 |
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in |
2007 |
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61.1 |
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in |
2005 |
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| Minimum
Water Temp |
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65.5 |
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62.8 |
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62.3 |
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+3.2 |
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66.6 |
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in |
2007 |
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57.3 |
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in |
2006 |
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| Average Water Temp |
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67.0 |
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66.3 |
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64.3 |
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+2.6 |
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69.3 |
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in |
2007 |
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60.2 |
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in |
2003 |
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| Sunrise/ AM Twilight |
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5:11:06 AM |
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4:37:49 AM |
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| Sunset /
PM Twilight |
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8:22:36 PM |
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8:56:46 PM |
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| Length Of Day |
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15:11:30 |
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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 June 21, 2025 |
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| Climate Weather for June 21 |
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| Weather History For June 21 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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