| Portsmouth Rhode Island
Weather Almanac |
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| Sunday, July 21, 2019 |
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| Clear early then Partly Cloudy, Record breaking Heat and Dew
Points, Light Winds & Haze |
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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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July 21, 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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93 |
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75 |
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80 |
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+13 |
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96 |
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in |
1991 |
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68 |
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in |
1936 |
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| Minimum
Temperature |
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76 |
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55 |
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65 |
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+11 |
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76 |
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in |
2019 |
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53 |
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in |
2000 |
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| Average Temperature |
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85 |
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65 |
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72 |
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+13 |
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85 |
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in |
2019 |
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64 |
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in |
2000 |
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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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1.65 |
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in |
1973 |
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| One Hour |
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.00 |
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.00 |
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.52 |
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in |
1988 |
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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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1 |
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in |
2000 |
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0 |
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in |
2019 |
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| CDD |
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20 |
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0 |
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8 |
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+12 |
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20 |
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in |
2019 |
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| Maximum Dew Point |
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79 |
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65 |
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68 |
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+11 |
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79 |
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in |
2019 |
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51 |
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in |
1965 |
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| Minimum
Dew Point |
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70 |
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53 |
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59 |
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+11 |
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70 |
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in |
2019 |
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43 |
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in |
1966 |
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| Average Dew Point |
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75 |
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59 |
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64 |
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+11 |
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75 |
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in |
2019 |
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48 |
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in |
1966 |
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| Maximum Humidity |
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92% |
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93% |
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92% |
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+0% |
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100% |
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in |
2004 |
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72% |
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in |
1966 |
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| Minimum
Humidity |
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54% |
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60% |
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59% |
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-5% |
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93% |
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in |
1988 |
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34% |
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in |
1991 |
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| Average Humidity |
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73% |
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77% |
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76% |
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-3% |
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97% |
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in |
1988 |
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54% |
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in |
1966 |
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| Maximum Barometer |
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29.81 |
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30.15 |
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30.02 |
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-00.21 |
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30.40 |
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in |
1929 |
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29.65 |
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in |
2015 |
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| Minimum
Barometer |
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29.72 |
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30.05 |
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29.83 |
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-00.11 |
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30.12 |
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in |
1999 |
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29.40 |
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in |
1981 |
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| Average Barometer |
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29.77 |
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30.10 |
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29.92 |
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-00.16 |
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30.16 |
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in |
1999 |
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29.55 |
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in |
1981 |
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| Average Wind |
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3.8 |
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5.3 |
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5.4 |
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-1.6 |
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11.3 |
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in |
2003 |
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1.8 |
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in |
2005 |
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| Direction |
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SSW |
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SE |
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SSW |
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S |
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SSE |
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| High Wind Gust |
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15 |
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15 |
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20 |
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-5 |
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44 |
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in |
1916 |
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10 |
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in |
1973 |
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| Direction |
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SSW |
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SSE |
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SSW |
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SSE |
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NNE |
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| High
Heat Index |
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109 |
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77 |
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83 |
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+26 |
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109 |
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in |
2019 |
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| Wind Chill |
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| Maximum Water Temp |
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73.6 |
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70.7 |
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71.3 |
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+2.3 |
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75.6 |
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in |
2010 |
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67.9 |
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in |
2009 |
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| Minimum
Water Temp |
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70.5 |
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67.5 |
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67.7 |
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+2.8 |
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73.2 |
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in |
2010 |
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64.6 |
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in |
2004 |
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| Average Water Temp |
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72.1 |
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69.1 |
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69.5 |
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+2.6 |
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74.4 |
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in |
2010 |
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66.7 |
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in |
2009 |
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| Sunrise/ AM Twilight |
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5:30:26 AM |
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4:58:17 AM |
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| Sunset /
PM Twilight |
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8:13:00 PM |
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8:45:09 PM |
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| Length Of Day |
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14:42:34 |
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| Special Conditions |
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Haze |
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| Comments |
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Record breaking heat and dew points |
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July 21, 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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84.7 |
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80.9 |
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79.0 |
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+5.8 |
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84.8 |
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in |
1955 |
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74.3 |
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in |
1902 |
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| Avg
Minimum Temperature |
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66.3 |
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63.2 |
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63.2 |
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+3.1 |
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71.1 |
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in |
2013 |
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58.2 |
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in |
1962 |
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| Average Temperature |
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75.5 |
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72.0 |
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71.0 |
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+4.5 |
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77.1 |
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in |
2013 |
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67.5 |
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in |
2009 |
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| Total
Precipitation |
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3.13 |
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.25 |
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2.31 |
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+.82 |
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6.32 |
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in |
2009 |
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.16 |
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in |
2002 |
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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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3 |
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-3 |
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23 |
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in |
1914 |
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0 |
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in |
2019 |
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| Total CDD |
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228 |
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152 |
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135 |
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+93 |
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260 |
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in |
2013 |
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66 |
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in |
2009 |
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| Avg Maximum Dew Point |
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70.9 |
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68.5 |
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67.2 |
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+3.7 |
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74.1 |
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in |
2013 |
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61.1 |
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in |
1978 |
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| Avg
Minimum Dew Point |
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62.4 |
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58.4 |
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58.4 |
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+4.0 |
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68.7 |
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in |
2013 |
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51.4 |
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in |
1962 |
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| Average Dew Point |
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66.6 |
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63.4 |
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62.8 |
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+3.9 |
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71.4 |
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in |
2013 |
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56.4 |
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in |
1962 |
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July 21, 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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32.19 |
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24.64 |
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26.61 |
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+5.58 |
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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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| 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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3 |
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-3 |
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23 |
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in |
1914 |
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0 |
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in |
2019 |
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| Total
CDD (since Jan 1) |
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323 |
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229 |
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224 |
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+99 |
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374 |
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in |
2010 |
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93 |
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in |
1902 |
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| Hour-by-Hour Weather For July 21, 2019 |
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| Climate Weather for July 21 |
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| Weather History For July 21 |
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| Weather Calendar |
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