| Portsmouth Rhode Island
Weather Almanac |
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| Sunday, August 18, 2019 |
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| Dense Fog early, Partly Cloudy Day To Mostly Cloudy Evening,
Light Winds, Warm and Very Muggy |
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| Climate
Normal Period |
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Climate Record Period |
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| 1981- 2010 |
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1893 - 2019 |
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August
18, 2019 |
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Record |
Record |
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| Observed Daily Data |
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Observed |
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2018 |
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Normal |
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Depart |
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Highest |
Lowest |
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| Maximum Temperature |
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83 |
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82 |
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78 |
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+5 |
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93 |
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in |
1987 |
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64 |
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in |
1919 |
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| Minimum
Temperature |
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70 |
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70 |
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63 |
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+7 |
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74 |
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in |
1965 |
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52 |
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in |
1979 |
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| Average Temperature |
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77 |
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76 |
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71 |
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+6 |
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82 |
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in |
1987 |
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60 |
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in |
1979 |
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| Precipitation |
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.00 |
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.82 |
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.12 |
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-.12 |
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1.55 |
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in |
1955 |
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| One
Hour |
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.00 |
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.71 |
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.81 |
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in |
1955 |
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| Snow |
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0.0 |
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0.0 |
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0.0 |
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+0.0 |
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0.0 |
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in |
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| Snow Depth |
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0 |
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0 |
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in |
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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 |
1979 |
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0 |
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in |
2019 |
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| CDD |
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12 |
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11 |
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6 |
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+6 |
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17 |
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in |
1987 |
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0 |
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in |
2000 |
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| Maximum Dew Point |
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75 |
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75 |
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66 |
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+9 |
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76 |
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in |
1955 |
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53 |
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in |
1981 |
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| Minimum
Dew Point |
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69 |
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69 |
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58 |
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+11 |
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73 |
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in |
1955 |
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42 |
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in |
1981 |
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| Average Dew Point |
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72 |
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72 |
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62 |
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+10 |
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75 |
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in |
1955 |
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48 |
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in |
1981 |
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| Maximum Humidity |
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100% |
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98% |
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93% |
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+7% |
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100% |
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in |
2019 |
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73% |
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in |
1954 |
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| Minimum
Humidity |
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74% |
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79% |
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57% |
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+17% |
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96% |
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in |
1986 |
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30% |
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in |
1988 |
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| Average Humidity |
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87% |
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89% |
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75% |
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+12% |
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98% |
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in |
1986 |
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55% |
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in |
1954 |
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| Maximum Barometer |
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30.05 |
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29.94 |
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30.04 |
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+00.01 |
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30.37 |
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in |
1989 |
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29.75 |
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in |
1958 |
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| Minimum
Barometer |
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29.98 |
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29.77 |
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29.84 |
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+00.14 |
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30.20 |
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in |
1961 |
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29.45 |
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in |
1988 |
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| Average Barometer |
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30.02 |
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29.86 |
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29.94 |
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+00.07 |
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30.28 |
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in |
1961 |
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29.66 |
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in |
1958 |
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| Average Wind |
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5.2 |
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5.9 |
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5.6 |
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-0.4 |
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12.5 |
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in |
1988 |
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1.4 |
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in |
1992 |
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| Direction |
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S |
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SSW |
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WNW |
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NNW |
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WNW |
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| High Wind Gust |
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17 |
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21 |
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20 |
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-3 |
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33 |
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in |
1991 |
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9 |
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in |
2010 |
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| Direction |
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SSE |
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NNE |
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WNW |
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SW |
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NNW |
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| High
Heat Index |
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88 |
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85 |
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80 |
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+8 |
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97 |
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in |
2009 |
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| Wind Chill |
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| Maximum Water Temp |
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73.3 |
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75.0 |
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71.9 |
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+1.4 |
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75.4 |
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in |
2012 |
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67.6 |
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in |
2000 |
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| Minimum
Water Temp |
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71.1 |
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73.4 |
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68.7 |
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+2.4 |
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73.4 |
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in |
2018 |
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64.0 |
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in |
2008 |
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| Average Water Temp |
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72.2 |
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74.2 |
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70.3 |
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+1.9 |
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74.2 |
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in |
2018 |
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67.0 |
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in |
2000 |
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| Sunrise/ AM Twilight |
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5:58:03 AM |
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5:28:41 AM |
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| Sunset /
PM Twilight |
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7:39:46 PM |
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8:09:08 PM |
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| Length Of Day |
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13:41:43 |
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| Special Conditions |
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Dense Fog |
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| Comments |
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August
18, 2019 |
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|
Record |
Record |
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| Month-to-Date Summary |
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Observed |
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2018 |
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Normal |
Depart |
Highest |
Lowest |
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| Avg Maximum Temperature |
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81.6 |
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83.2 |
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78.9 |
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+2.7 |
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85.1 |
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in |
1944 |
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72.3 |
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in |
1964 |
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| Avg
Minimum Temperature |
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65.2 |
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70.5 |
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64.5 |
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+0.7 |
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71.3 |
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in |
1988 |
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55.8 |
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in |
1964 |
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| Average Temperature |
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73.4 |
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76.9 |
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71.7 |
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+1.7 |
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77.8 |
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in |
1988 |
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64.1 |
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in |
1964 |
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| Total
Precipitation |
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.66 |
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3.46 |
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2.13 |
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-1.47 |
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8.35 |
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in |
1992 |
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.08 |
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in |
1940 |
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| Total Snow |
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0.0 |
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0.0 |
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0.0 |
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+0.0 |
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0.0 |
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in |
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0.0 |
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in |
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| Total
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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24 |
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in |
1964 |
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0 |
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in |
2019 |
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| Total CDD |
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156 |
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217 |
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130 |
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+26 |
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235 |
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in |
1988 |
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13 |
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in |
1964 |
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| Avg Maximum Dew Point |
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68.7 |
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74.2 |
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67.9 |
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+0.8 |
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74.2 |
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in |
2018 |
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57.8 |
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in |
1964 |
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| Avg
Minimum Dew Point |
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60.2 |
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68.0 |
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59.8 |
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+0.4 |
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68.0 |
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in |
2018 |
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47.3 |
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in |
1964 |
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| Average Dew Point |
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64.4 |
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71.1 |
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63.8 |
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+0.6 |
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71.1 |
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in |
2018 |
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52.5 |
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in |
1964 |
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August 18, 2019 |
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Record |
Record |
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| Year-to-Date Summary |
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Observed |
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2018 |
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Normal |
Depart |
Highest |
Lowest |
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| Total Precipitation |
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35.89 |
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28.59 |
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29.81 |
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+6.08 |
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43.94 |
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in |
1983 |
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15.70 |
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in |
1957 |
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| Total
Snow (since Jul 1 19) |
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0.0 |
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0.0 |
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0.0 |
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+0.0 |
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0.0 |
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in |
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0.0 |
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in |
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| Total HDD (since Jul 1
19) |
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0 |
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0 |
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0 |
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+0 |
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24 |
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in |
1964 |
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0 |
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in |
2019 |
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| Total
CDD (since Jan 1) |
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576 |
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545 |
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434 |
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+142 |
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616 |
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in |
2010 |
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208 |
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in |
1902 |
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| Hour-by-Hour Weather For August 18, 2019 |
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| Climate Weather for August 18 |
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| Weather History For August 18 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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