| Portsmouth Rhode Island Weather Almanac |
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| Sunday, July
18, 2021 |
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| Cloudy,
Foggy early, Cooler and Continued 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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July 18, 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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2020 |
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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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79 |
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86 |
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80 |
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-1 |
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92 |
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in |
2012 |
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68 |
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in |
1913 |
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| Minimum
Temperature |
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72 |
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68 |
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65 |
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+7 |
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74 |
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in |
2013 |
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53 |
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in |
1956 |
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| Average Temperature |
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76 |
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77 |
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73 |
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+3 |
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83 |
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in |
2013 |
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64 |
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in |
1962 |
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| Month Avg Max Temperature |
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78.2 |
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80.2 |
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79.6 |
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-1.4 |
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85.0 |
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in |
1955 |
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74.4 |
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in |
1906 |
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| Month
Avg Min Temperature |
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65.2 |
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64.8 |
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64.3 |
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+0.9 |
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70.9 |
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in |
2013 |
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57.5 |
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in |
1962 |
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| Month Average
Temperature |
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72.0 |
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72.8 |
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72.3 |
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-0.3 |
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77.1 |
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in |
2013 |
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67.4 |
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in |
2009 |
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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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1 |
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in |
1962 |
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0 |
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in |
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| Month HDD |
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9 |
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0 |
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3 |
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+6 |
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23 |
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in |
1914 |
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0 |
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in |
2020 |
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| Season HDD |
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9 |
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0 |
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3 |
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+6 |
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23 |
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in |
1914 |
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0 |
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in |
2020 |
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| CDD |
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11 |
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12 |
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8 |
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+3 |
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18 |
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in |
2013 |
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0 |
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in |
1989 |
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| Month CDD |
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135 |
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140 |
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131 |
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+4 |
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218 |
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in |
2013 |
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52 |
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in |
1895 |
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| Year CDD |
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297 |
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273 |
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224 |
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+73 |
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339 |
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in |
2010 |
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86 |
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in |
1918 |
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| Maximum Dew Point |
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75 |
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73 |
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69 |
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+6 |
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77 |
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in |
2013 |
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53 |
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in |
1976 |
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| Minimum
Dew Point |
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70 |
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67 |
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61 |
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+9 |
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72 |
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in |
2013 |
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45 |
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in |
1993 |
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| Average Dew Point |
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73 |
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70 |
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65 |
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+8 |
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75 |
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in |
2013 |
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51 |
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in |
1956 |
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| Month Avg Max Dew Point |
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71.2 |
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70.2 |
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68.3 |
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+2.9 |
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74.1 |
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in |
2013 |
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60.1 |
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in |
1978 |
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| Month
Avg Min Dew Point |
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62.8 |
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62.3 |
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59.7 |
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+3.1 |
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68.4 |
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in |
2013 |
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50.5 |
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in |
1962 |
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| Month Average Dew Point |
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67.0 |
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66.3 |
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64.0 |
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+3.0 |
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71.3 |
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in |
2013 |
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55.6 |
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in |
1962 |
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| Precipitation |
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T |
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.00 |
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.09 |
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-.09 |
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.98 |
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in |
2007 |
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| One Hour |
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T |
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.00 |
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.71 |
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in |
2006 |
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| Hourly Rate |
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.00 |
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.00 |
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7.38 |
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in |
2006 |
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| Month Precipitation |
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3.46 |
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1.06 |
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1.82 |
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+1.64 |
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5.31 |
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in |
2009 |
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T |
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in |
1982 |
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| Year Precipitation |
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22.52 |
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22.08 |
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24.39 |
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-1.87 |
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40.76 |
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in |
1998 |
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13.52 |
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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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0 |
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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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#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 |
#N/A |
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July
18, 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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96% |
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98% |
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93% |
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+3% |
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100% |
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in |
2017 |
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77% |
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in |
1969 |
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| Minimum
Humidity |
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83% |
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59% |
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58% |
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+25% |
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92% |
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in |
2005 |
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27% |
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in |
1957 |
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| Average Humidity |
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90% |
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79% |
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75% |
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+14% |
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96% |
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in |
2005 |
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54% |
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in |
1993 |
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| Maximum Barometer |
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30.04 |
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30.07 |
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30.03 |
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+00.01 |
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30.38 |
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in |
1935 |
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29.74 |
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in |
1997 |
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| Minimum
Barometer |
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29.95 |
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29.98 |
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29.84 |
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+00.11 |
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30.10 |
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in |
1967 |
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29.56 |
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in |
1984 |
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| Average Barometer |
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30.00 |
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30.03 |
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29.94 |
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+00.06 |
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30.15 |
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in |
1967 |
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29.70 |
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in |
1997 |
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| Average Wind |
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6.2 |
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4.3 |
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5.2 |
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+1.0 |
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10.7 |
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in |
1974 |
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1.3 |
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in |
1994 |
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| Direction |
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SSW |
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SW |
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SSW |
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SW |
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N |
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| High Wind Gust |
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22 |
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21 |
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20 |
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+2 |
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42 |
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in |
2012 |
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10 |
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in |
1994 |
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| Direction |
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S |
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SW |
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SSW |
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NNW |
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N |
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| High
Heat Index |
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84 |
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93 |
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85 |
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-1 |
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106 |
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in |
2012 |
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| Low Wind Chill |
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#N/A |
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in |
#N/A |
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| Maximum Water Temp |
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74.7 |
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69.1 |
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71.6 |
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+3.1 |
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77.8 |
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in |
2013 |
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68.3 |
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in |
2004 |
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| Minimum
Water Temp |
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72.3 |
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64.4 |
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67.5 |
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+4.8 |
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72.3 |
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in |
2021 |
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63.1 |
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in |
2001 |
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| Average Water Temp |
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73.5 |
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66.8 |
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69.6 |
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+3.9 |
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74.9 |
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in |
2013 |
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65.8 |
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in |
2004 |
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| Sunrise/ AM Twilight |
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5:28:02 AM |
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4:55:37 AM |
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| Sunset /
PM Twilight |
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8:15:08 PM |
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8:47:33 PM |
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| Length Of Day |
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14:47:06 |
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| Special Conditions |
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Fog |
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| Comments |
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| Hour-by-Hour Weather For July 18, 2021 |
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| Climate Weather for July 18 |
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| Weather History For July 18 |
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| Weather Calendar |
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| Back
To Weather Stat Page |
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