| Portsmouth Rhode Island
Weather Almanac |
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| Saturday, July 18, 2020 |
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| Dense Fog early, Clear Day to Partly Cloudy PM, Light Winds,
Hot and Humid |
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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 18, 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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86 |
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76 |
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80 |
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+6 |
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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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68 |
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65 |
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64 |
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+4 |
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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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77 |
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71 |
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72 |
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+5 |
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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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| Precipitation |
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.00 |
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.66 |
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.11 |
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-.11 |
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.98 |
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in |
2007 |
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| One Hour |
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.00 |
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.26 |
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.71 |
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in |
2006 |
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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 |
1962 |
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0 |
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in |
2020 |
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| CDD |
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12 |
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6 |
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7 |
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+5 |
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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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| Maximum Dew Point |
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73 |
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73 |
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68 |
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+5 |
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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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67 |
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63 |
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59 |
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+8 |
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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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70 |
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68 |
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63 |
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+7 |
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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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| Maximum Humidity |
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98% |
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95% |
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92% |
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+6% |
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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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59% |
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84% |
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58% |
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+1% |
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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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79% |
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90% |
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75% |
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+3% |
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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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30.07 |
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29.97 |
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30.03 |
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+00.04 |
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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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29.98 |
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29.87 |
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29.84 |
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+00.14 |
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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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30.03 |
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29.92 |
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29.93 |
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+00.09 |
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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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4.3 |
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6.3 |
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5.2 |
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-0.9 |
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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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SW |
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NNE |
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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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21 |
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19 |
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20 |
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+1 |
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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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SW |
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NNE |
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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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93 |
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80 |
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85 |
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+8 |
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106 |
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in |
2012 |
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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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69.1 |
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72.7 |
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71.6 |
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-2.5 |
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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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64.4 |
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69.4 |
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67.4 |
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-3.0 |
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72.1 |
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in |
2013 |
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63.1 |
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in |
2001 |
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| Average Water Temp |
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66.8 |
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71.1 |
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69.5 |
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-2.8 |
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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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5:27:23 AM |
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4:54:53 AM |
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| Sunset /
PM Twilight |
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8:15:41 PM |
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8:48:10 PM |
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| Length Of Day |
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14:46:42 |
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| Special Conditions |
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Dense Fog |
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| Comments |
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July 18, 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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80.2 |
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83.8 |
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78.8 |
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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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| Avg
Minimum Temperature |
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64.8 |
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65.4 |
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62.9 |
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+1.8 |
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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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| Average Temperature |
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72.5 |
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74.6 |
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70.8 |
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+1.7 |
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76.9 |
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in |
2013 |
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67.2 |
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in |
2009 |
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| Total
Precipitation |
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1.06 |
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3.13 |
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1.98 |
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-.92 |
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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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| 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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140 |
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180 |
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113 |
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+27 |
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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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| Avg Maximum Dew Point |
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70.2 |
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69.8 |
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67.1 |
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+3.1 |
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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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| Avg
Minimum Dew Point |
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62.3 |
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61.4 |
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58.2 |
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+4.1 |
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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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| Average Dew Point |
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66.3 |
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65.6 |
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62.6 |
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+3.6 |
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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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July 18, 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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22.08 |
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32.19 |
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26.41 |
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-4.33 |
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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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273 |
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275 |
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202 |
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+71 |
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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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| Hour-by-Hour Weather For July 18, 2020 |
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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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