Portsmouth Rhode Island Weather Almanac  
Monday, July 3, 2023  
Cloudy, Heavy Rain Shower/Fog early, P Cloudy Day to Mostly Cloudy PM, Warmer & Very Humid  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    July 3, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   84   82   79   +5   93   in 1949   60   in 1914  
Minimum Temperature   69   65   63   +6   73   in 2002   50   in 1957  
Average Temperature   77   74   71   +6   83   in 2002   57   in 1914  
 Month Avg Max Temperature   80.7   80.7   78.7   +2.0   88.7   in 1901   67.0   in 1914  
Month Avg Min Temperature   65.3   66.3   63.0   +2.3   72.3   in 1901   52.3   in 1988  
Month Average Temperature   73.3   74.0   71.0   +2.3   80.7   in 1901   61.0   in 1914  
High Heat Index   93   83           103   in 2002            
Low Wind Chill                                      
Heating Degree Days   0   0   1   -1   8   in 1914   0   in 2023  
Month Heating DD   0   0   3   -3   12   in 1914   0   in 2023  
Season Heating DD   0   0   3   -3   12   in 1914   0   in 2023  
Cooling Degree Days   12   9   5   +7   18   in 2002   0   in 2021  
Month Cooling DD   25   27   18   +7   47   in 1901   0   in 1914  
Year Cooling DD   101   122   111   -10   187   in 2001   26   in 1972  
Maximum Dew Point   76   68   67   +9   76   in 2023   52   in 1962  
Minimum Dew Point   69   53   59   +10   70   in 2002   35   in 1957  
Average  Dew Point   73   61   63   +10   73   in 2023   47   in 1957  
 Month Avg Max Dew Point   73.7   71.3   67.0   +6.7   74.3   in 2018   49.3   in 1982  
Month Avg Min Dew Point   64.7   59.7   58.7   +6.0   68.7   in 2013   39.0   in 1957  
Month Average Dew Point   69.2   65.5   63.0   +6.2   70.5   in 2014   45.7   in 1978  
Precipitation   .11   .00   .11   +.00   1.40   in 1942            
One Hour Rain   .11   .00           .48   in 1996            
Hourly Rain Rate   2.54   .00           2.54   in 2023            
Month Precipitation   .21   .22   .33   -.12   2.39   in 2009   .00   in 2019  
Year Precipitation   24.69   23.12   22.90   +1.79   40.39   in 1998   12.92   in 1957  
Snow                                      
Snow Depth                                      
Month Snow                                      
Season Snow   0.0   0.0   0.0   +0.0   0.0   in 1996   0.0   in 1998  
    July 3, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   98%   91%   +8%   100%   in 2018   71%   in 1952  
Minimum Humidity   75%   39%   57%   +18%   89%   in 2021   23%   in 1953  
Average Humidity   87%   69%   74%   +13%   94%   in 2021   51%   in 1971  
Maximum Barometer   29.89   30.03   30.00   -00.11   30.38   in 1981   29.65   in 1963  
Minimum Barometer   29.79   29.92   29.82   -00.03   30.18   in 2013   29.47   in 1963  
Average Barometer   29.84   29.98   29.91   -00.07   30.28   in 1981   29.56   in 1963  
Average Wind   6.8   3.1   5.6   +1.2   12.2   in 1953   1.6   in 1996  
Direction   SSW   WNW   SSW       WNW SE
High Wind Gust   22   14   19   +3   33   in 1960   11   in 1968  
Direction   SW   NW   S       S N
Maximum Water Temp   70.9   69.1   69.6   +1.3   76.3   in 2002   64.0   in 2020  
Minimum Water Temp   69.1   67.3   65.3   +3.8   69.1   in 2023   59.9   in 2003  
Average Water Temp   70.0   68.2   67.4   +2.6   71.6   in 2002   62.2   in 2020  
Sunrise/ AM Twilight   5:15:46 AM   4:43:20 AM            
Sunset / PM Twilight   8:22:38 PM   8:56:05 PM            
Length Of Day   15:06:52                          
Special Conditions   Dense Fog                              
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