Portsmouth Rhode Island Weather Almanac  
Wednesday, July 5, 2023  
Cloudy & Fog early, Partly Cloudy Day to Mostly Cloudy PM, Light Winds, Continued Warm & Muggy  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    July 5, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   84   73   79   +5   95   in 1999   62   in 1933  
Minimum Temperature   68   63   64   +4   78   in 1999   50   in 1979  
Average Temperature   76   68   72   +4   87   in 1999   57   in 1933  
 Month Avg Max Temperature   81.6   79.0   78.8   +2.8   89.6   in 1955   69.2   in 1914  
Month Avg Min Temperature   66.4   64.8   63.4   +3.0   70.0   in 2013   53.6   in 1962  
Month Average Temperature   74.2   72.2   71.4   +2.8   78.2   in 2018   62.2   in 1914  
High Heat Index   94   75           107   in 1999            
Low Wind Chill                             45   in 1979  
Heating Degree Days   0   0   0   +0   8   in 1933   0   in 2023  
Month Heating DD   0   0   3   -3   16   in 1933   0   in 2023  
Season Heating DD   0   0   3   -3   16   in 1933   0   in 2023  
Cooling Degree Days   11   3   6   +5   22   in 1999   0   in 2021  
Month Cooling DD   46   36   32   +14   66   in 2018   1   in 1914  
Year Cooling DD   122   131   125   -3   209   in 1957   31   in 1972  
Maximum Dew Point   77   66   68   +9   77   in 2023   50   in 1962  
Minimum Dew Point   67   57   59   +8   73   in 1999   41   in 1979  
Average  Dew Point   72   62   63   +9   75   in 1999   48   in 1982  
 Month Avg Max Dew Point   74.8   68.0   67.4   +7.4   75.0   in 2018   50.8   in 1982  
Month Avg Min Dew Point   65.6   57.8   58.8   +6.8   68.2   in 2013   42.2   in 1982  
Month Average Dew Point   70.2   62.9   63.0   +7.2   71.0   in 2018   46.5   in 1982  
Precipitation   .00   .02   .11   -.11   1.43   in 1956            
One Hour Rain   .00   .02           .36   in 2016            
Hourly Rain Rate   .00   .06           9.00   in 2004            
Month Precipitation   1.60   .24   .55   +1.05   3.03   in 2014   .00   in 2019  
Year Precipitation   26.08   23.14   23.12   +2.96   40.73   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 5, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   90%   93%   +6%   100%   in 2018   75%   in 1960  
Minimum Humidity   75%   72%   59%   +16%   91%   in 2008   35%   in 2014  
Average Humidity   87%   81%   76%   +11%   95%   in 1981   58%   in 1960  
Maximum Barometer   29.98   30.10   30.01   -00.03   30.42   in 1988   29.58   in 1951  
Minimum Barometer   29.93   29.85   29.82   +00.11   30.20   in 1995   29.43   in 1990  
Average Barometer   29.96   29.98   29.92   +00.04   30.26   in 1988   29.51   in 1951  
Average Wind   4.3   6.8   5.9   -1.6   15.5   in 1984   1.3   in 1989  
Direction   SSW   SSW   SSW       SW SSE
High Wind Gust   13   25   21   -8   37   in 1955   13   in 2023  
Direction   SW   SSW   SSW       N SW
Maximum Water Temp   71.6   69.4   70.0   +1.6   76.1   in 2013   65.1   in 2020  
Minimum Water Temp   68.2   68.4   65.6   +2.6   70.4   in 2013   62.0   in 2004  
Average Water Temp   69.9   68.9   67.8   +2.1   73.3   in 2013   63.8   in 2020  
Sunrise/ AM Twilight   5:16:55 AM   4:44:41 AM            
Sunset / PM Twilight   8:22:09 PM   8:55:26 PM            
Length Of Day   15:05:14                          
Special Conditions   Dense Fog                              
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