| Portsmouth Rhode Island Weather Almanac |
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| Wednesday,
June 30, 2021 |
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| Clear to
Mostly Cloudy PM w/Passing Thunderstorm, Continued Very Hot and Very Muggy |
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| Climate Normal
Period |
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Climate Record Period |
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| 1991- 2020 |
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1893 - 2021 |
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June 30, 2021 |
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Record |
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Record |
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| Observed Daily Data |
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2021 |
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2021 |
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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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89 |
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75 |
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78 |
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+11 |
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93 |
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in |
1945 |
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66 |
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in |
1967 |
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| Minimum
Temperature |
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71 |
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63 |
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63 |
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+8 |
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71 |
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in |
2021 |
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51 |
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in |
1919 |
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| Average Temperature |
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80 |
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69 |
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71 |
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+9 |
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80 |
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in |
2021 |
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60 |
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in |
1967 |
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| Month Avg Max Temperature |
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77.6 |
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77.1 |
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73.8 |
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+3.8 |
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79.1 |
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in |
1957 |
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66.5 |
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in |
1903 |
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| Month Avg
Min Temperature |
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60.3 |
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59.0 |
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57.9 |
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+2.4 |
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61.3 |
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in |
2001 |
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53.1 |
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in |
1907 |
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| Month Average Temperature |
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69.2 |
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68.2 |
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65.9 |
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+3.3 |
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69.3 |
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in |
2001 |
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60.5 |
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in |
1903 |
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| HDD |
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0 |
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0 |
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0 |
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+0 |
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5 |
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in |
1967 |
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0 |
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in |
2021 |
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| Month HDD |
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19 |
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28 |
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50 |
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-31 |
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159 |
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in |
1907 |
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5 |
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in |
1899 |
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| Season HDD |
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5064 |
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5120 |
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5478 |
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-414 |
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6620 |
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in |
1905 |
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4549 |
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in |
2012 |
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| CDD |
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15 |
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4 |
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6 |
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+9 |
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15 |
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in |
2021 |
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0 |
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in |
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| Month CDD |
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145 |
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125 |
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80 |
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+65 |
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165 |
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in |
1957 |
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11 |
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in |
1972 |
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| Year CDD |
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162 |
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133 |
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93 |
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+29 |
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181 |
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in |
1957 |
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11 |
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in |
1972 |
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| Maximum Dew Point |
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77 |
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67 |
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67 |
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+10 |
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77 |
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in |
2021 |
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53 |
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in |
1989 |
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| Minimum
Dew Point |
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68 |
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62 |
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59 |
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+9 |
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68 |
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in |
2021 |
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38 |
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in |
1978 |
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| Average Dew Point |
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73 |
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65 |
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63 |
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+10 |
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73 |
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in |
2021 |
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48 |
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in |
1989 |
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| Month Avg Max Dew Point |
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66.7 |
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64.7 |
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62.9 |
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+3.8 |
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66.7 |
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in |
2021 |
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54.9 |
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in |
1965 |
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| Month Avg
Min Dew Point |
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56.3 |
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55.1 |
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53.3 |
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+3.0 |
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57.2 |
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in |
2010 |
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44.9 |
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in |
1958 |
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| Month Average Dew Point |
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61.5 |
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59.9 |
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58.0 |
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+3.5 |
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61.6 |
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in |
2008 |
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50.3 |
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in |
1965 |
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| Precipitation |
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.01 |
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.00 |
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.11 |
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-.10 |
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2.27 |
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in |
1939 |
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| One Hour |
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.01 |
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.00 |
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.77 |
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in |
1998 |
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| Hourly Rate |
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.00 |
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.00 |
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3.22 |
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in |
2013 |
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| Month Precipitation |
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2.06 |
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1.81 |
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3.53 |
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-1.47 |
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10.87 |
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in |
1998 |
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.05 |
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in |
1949 |
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| Year Precipitation |
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19.06 |
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21.02 |
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22.57 |
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-3.51 |
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40.39 |
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in |
1998 |
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12.92 |
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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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##### |
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##### |
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0.0 |
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in |
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| Snow Depth |
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0 |
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0 |
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44012 |
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in |
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| Month Snow |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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in |
#N/A |
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#N/A |
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in |
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| Season Snow |
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27.7 |
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12.9 |
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33.5 |
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-5.8 |
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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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June
30, 2021 |
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|
Record |
Record |
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| Observed Daily Data |
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2021 |
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2020 |
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Norm |
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Depart |
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Highest |
Lowest |
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| Maximum Humidity |
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92% |
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94% |
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91% |
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+1% |
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100% |
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in |
2005 |
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66% |
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in |
1978 |
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| Minimum
Humidity |
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64% |
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73% |
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58% |
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+6% |
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93% |
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in |
1973 |
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29% |
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in |
1989 |
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| Average Humidity |
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78% |
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84% |
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75% |
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+3% |
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96% |
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in |
1998 |
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50% |
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in |
1978 |
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| Maximum Barometer |
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30.08 |
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29.91 |
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29.99 |
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+00.09 |
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30.41 |
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in |
1985 |
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29.50 |
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in |
1957 |
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| Minimum
Barometer |
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29.86 |
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29.85 |
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29.79 |
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+00.07 |
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30.20 |
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in |
2002 |
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29.35 |
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in |
1998 |
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| Average Barometer |
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29.97 |
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29.88 |
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29.89 |
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+00.08 |
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30.24 |
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in |
2002 |
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29.44 |
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in |
1957 |
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| Average Wind |
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6.7 |
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2.7 |
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6.1 |
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+0.6 |
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14.5 |
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in |
1975 |
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2.0 |
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in |
1980 |
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| Direction |
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SW |
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NNE |
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SSW |
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NE |
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NNE |
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| High Wind Gust |
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28 |
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13 |
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22 |
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+6 |
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44 |
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in |
1957 |
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11 |
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in |
1980 |
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| Direction |
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WSW |
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N |
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SSW |
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NW |
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ENE |
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| High Heat
Index |
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101 |
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75 |
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79 |
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+22 |
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101 |
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in |
2021 |
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| Low Wind Chill |
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| Maximum Water Temp |
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72.9 |
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63.7 |
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68.4 |
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+4.5 |
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72.9 |
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in |
2021 |
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63.6 |
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in |
2006 |
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| Minimum
Water Temp |
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68.2 |
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61.3 |
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64.4 |
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+3.8 |
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68.2 |
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in |
2021 |
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59.5 |
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in |
2003 |
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| Average Water Temp |
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70.6 |
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62.5 |
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66.4 |
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+4.2 |
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70.6 |
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in |
2021 |
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61.9 |
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in |
2006 |
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| Sunrise/ AM Twilight |
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5:15:17 AM |
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4:41:32 AM |
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| Sunset /
PM Twilight |
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8:23:02 PM |
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8:56:47 PM |
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| Length Of Day |
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15:07:45 |
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| Special Conditions |
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Thunderstorm; Haze |
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| Comments |
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| Hour-by-Hour Weather For June 30, 2021 |
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| Climate Weather for June 30 |
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| Weather History For June 30 |
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| Weather Calendar |
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| Back
To Weather Stat Page |
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