| Portsmouth Rhode Island Weather Almanac |
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| Sunday, June
29, 2025 |
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| Dense Fog
early, Partly Cloudy Day to Clear PM, Light Winds, Hot and Humid |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2025 |
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Jun 29 |
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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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88 |
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74 |
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78 |
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+10 |
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93 |
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in |
1991 |
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61 |
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in |
1927 |
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| Minimum
Temperature |
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67 |
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57 |
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63 |
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+4 |
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70 |
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in |
2021 |
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49 |
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in |
1995 |
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| Average Temperature |
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78 |
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66 |
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70 |
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+8 |
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81 |
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in |
2021 |
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57 |
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in |
1919 |
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| Month Avg Max Temperature |
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77.1 |
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77.0 |
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73.7 |
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+3.4 |
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79.0 |
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in |
1957 |
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66.3 |
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in |
1903 |
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| Month Avg
Min Temperature |
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60.9 |
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60.4 |
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57.7 |
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+3.2 |
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61.1 |
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in |
2010 |
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52.9 |
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in |
1907 |
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| Month Average
Temperature |
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69.2 |
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69.0 |
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65.8 |
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+3.4 |
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69.2 |
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in |
2025 |
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60.4 |
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in |
1903 |
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| High
Heat Index |
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97 |
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76 |
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106 |
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in |
2021 |
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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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0 |
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+0 |
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8 |
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in |
1919 |
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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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50 |
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-26 |
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159 |
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in |
1907 |
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5 |
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in |
2024 |
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| Season
Heating DD |
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5026 |
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4952 |
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5509 |
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-483 |
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6620 |
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in |
1905 |
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4444 |
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in |
1932 |
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| Cooling Degree Days |
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13 |
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1 |
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5 |
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+8 |
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16 |
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in |
2021 |
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0 |
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in |
All |
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| Month Cooling DD |
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146 |
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121 |
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75 |
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+71 |
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156 |
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in |
1957 |
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8 |
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in |
1972 |
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| Year Cooling DD |
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146 |
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121 |
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75 |
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+71 |
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172 |
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in |
1957 |
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8 |
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in |
1972 |
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| Maximum Dew Point |
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77 |
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71 |
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67 |
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+10 |
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78 |
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in |
2021 |
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55 |
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in |
1958 |
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| Minimum
Dew Point |
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63 |
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54 |
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58 |
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+5 |
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68 |
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in |
2008 |
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44 |
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in |
1971 |
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| Average Dew Point |
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70 |
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63 |
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63 |
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+7 |
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72 |
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in |
2021 |
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52 |
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in |
1970 |
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| Month Avg Max Dew Point |
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67.0 |
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66.4 |
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62.8 |
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+4.2 |
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67.0 |
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in |
2025 |
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54.6 |
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in |
1965 |
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| Month Avg
Min Dew Point |
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56.6 |
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55.6 |
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53.1 |
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+3.5 |
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57.4 |
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in |
2010 |
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44.7 |
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in |
1958 |
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| Month Average Dew Point |
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61.8 |
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61.0 |
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57.9 |
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+3.9 |
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61.8 |
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in |
2010 |
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50.0 |
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in |
1965 |
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| Precipitation |
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.00 |
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.00 |
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.11 |
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-.11 |
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1.32 |
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in |
1994 |
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| One Hour
Rain |
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.00 |
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.00 |
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.83 |
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in |
2019 |
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| Half Hour
Rain |
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.00 |
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.00 |
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.66 |
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in |
2019 |
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| Hourly Rain Rate |
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.00 |
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.00 |
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7.20 |
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in |
2019 |
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| Month Precipitation |
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.98 |
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3.67 |
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3.42 |
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-2.44 |
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9.44 |
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in |
1982 |
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.05 |
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in |
1949 |
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| Year Precipitation |
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21.37 |
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32.83 |
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22.46 |
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-1.09 |
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39.12 |
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in |
1983 |
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12.69 |
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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 29 |
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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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99% |
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98% |
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93% |
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+6% |
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100% |
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in |
2018 |
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70% |
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in |
1991 |
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| Minimum
Humidity |
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54% |
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66% |
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60% |
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-6% |
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98% |
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in |
1985 |
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31% |
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in |
1958 |
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| Average Humidity |
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77% |
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82% |
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76% |
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+0% |
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99% |
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in |
1985 |
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54% |
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in |
1991 |
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| Maximum Barometer |
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29.98 |
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30.28 |
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30.02 |
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-00.04 |
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30.28 |
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in |
2024 |
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29.53 |
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in |
2009 |
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| Minimum
Barometer |
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29.89 |
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30.04 |
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29.83 |
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+00.06 |
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30.16 |
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in |
2022 |
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29.34 |
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in |
1986 |
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| Average Barometer |
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29.94 |
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30.16 |
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29.92 |
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+00.01 |
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30.21 |
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in |
2003 |
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29.49 |
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in |
2009 |
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| Average
Wind |
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4.9 |
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8.4 |
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5.7 |
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-0.8 |
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16.4 |
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in |
1957 |
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2.0 |
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in |
1996 |
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| Direction |
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SSW |
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S |
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SSW |
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SW |
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SSE |
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| High
Wind Gust |
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20 |
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26 |
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21 |
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-1 |
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52 |
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in |
1957 |
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11 |
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in |
2000 |
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| Direction |
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WNW |
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S |
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SSW |
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SSW |
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S |
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| Maximum Water Temp |
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68.2 |
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67.3 |
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68.0 |
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+0.2 |
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72.0 |
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in |
2021 |
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63.1 |
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in |
2020 |
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| Minimum
Water Temp |
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65.5 |
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66.0 |
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64.1 |
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+1.4 |
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68.2 |
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in |
2021 |
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58.8 |
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in |
2004 |
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| Average Water Temp |
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66.9 |
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66.7 |
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66.1 |
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+0.8 |
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70.1 |
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in |
2021 |
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61.6 |
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in |
2020 |
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| Sunrise/ AM Twilight |
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5:13:46 AM |
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4:41:00 AM |
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| Sunset /
PM Twilight |
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8:23:10 PM |
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8:56:56 PM |
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| Length Of Day |
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15:09:24 |
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| Special
Conditions |
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Dense Fog |
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| Comments |
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| Hour-by-Hour Weather For June 29, 2025 |
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| Climate Weather for June 29 |
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| Weather History For June 29 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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