| Portsmouth Rhode Island
Weather Almanac |
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| Tuesday, July 21, 2020 |
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| Clear and Hot, Less Humid, Light Winds |
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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 - 2020 |
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July 21, 2020 |
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Record |
Record |
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| Observed Daily Data |
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Observed |
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2019 |
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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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90 |
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93 |
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80 |
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+10 |
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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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71 |
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76 |
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65 |
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+6 |
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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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81 |
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85 |
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72 |
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+9 |
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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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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 |
2020 |
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| CDD |
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16 |
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20 |
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8 |
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+8 |
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20 |
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in |
2019 |
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0 |
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in |
2018 |
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| Maximum Dew Point |
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71 |
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79 |
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68 |
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+3 |
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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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64 |
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70 |
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59 |
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+5 |
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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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68 |
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75 |
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64 |
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+4 |
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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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84% |
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92% |
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92% |
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-8% |
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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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45% |
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54% |
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59% |
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-14% |
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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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65% |
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73% |
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76% |
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-11% |
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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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30.03 |
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29.81 |
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30.02 |
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+00.01 |
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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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29.89 |
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29.72 |
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29.83 |
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+00.06 |
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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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29.96 |
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29.77 |
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29.92 |
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+00.04 |
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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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4.4 |
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3.8 |
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5.4 |
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-1.0 |
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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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NNW |
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SSW |
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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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20 |
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15 |
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20 |
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+0 |
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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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WSW |
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SSW |
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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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96 |
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109 |
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83 |
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+13 |
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109 |
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in |
2019 |
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| 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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68.4 |
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73.6 |
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71.3 |
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-2.9 |
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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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64.0 |
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70.5 |
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67.7 |
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-3.7 |
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73.2 |
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in |
2010 |
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64.0 |
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in |
2020 |
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| Average Water Temp |
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66.2 |
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72.1 |
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69.5 |
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-3.3 |
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74.4 |
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in |
2010 |
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66.2 |
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in |
2020 |
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| Sunrise/ AM Twilight |
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5:30:01 AM |
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4:57:48 AM |
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| Sunset /
PM Twilight |
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8:13:24 PM |
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8:45:36 PM |
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| Length Of Day |
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14:41:39 |
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| Special Conditions |
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None |
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| Comments |
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July 21, 2020 |
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|
Record |
Record |
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| Month-to-Date Summary |
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Observed |
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2019 |
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Normal |
Depart |
Highest |
Lowest |
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| Avg Maximum Temperature |
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81.3 |
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84.7 |
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79.0 |
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+2.4 |
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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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65.6 |
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66.3 |
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63.2 |
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+2.4 |
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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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73.5 |
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75.5 |
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71.0 |
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+2.5 |
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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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1.09 |
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3.13 |
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2.31 |
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-1.22 |
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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 |
2020 |
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| Total CDD |
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184 |
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228 |
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135 |
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+49 |
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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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70.8 |
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70.9 |
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67.2 |
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+3.6 |
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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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63.0 |
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62.4 |
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58.4 |
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+4.6 |
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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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66.9 |
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66.6 |
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62.8 |
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+4.1 |
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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, 2020 |
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Record |
Record |
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| Year-to-Date Summary |
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Observed |
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2019 |
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Normal |
Depart |
Highest |
Lowest |
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| Total Precipitation |
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22.11 |
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32.19 |
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26.74 |
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-4.63 |
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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 20) |
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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
20) |
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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 |
2020 |
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| Total
CDD (since Jan 1) |
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317 |
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323 |
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224 |
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+93 |
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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, 2020 |
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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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