Portsmouth Rhode Island Weather Almanac  
Tuesday, July 25, 2023  
Partly Cloudy, Light Fog, Continued Warm and Humid  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    July 25, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   82   79   80   +2   90   in 1972   65   in 2017  
Minimum Temperature   68   73   66   +2   73   in 2022   53   in 1953  
Average Temperature   75   76   73   +2   81   in 2010   61   in 2017  
 Month Avg Max Temperature   81.7   82.0   79.7   +2.0   84.8   in 1955   74.0   in 1902  
Month Avg Min Temperature   68.0   66.4   64.6   +3.4   70.6   in 2013   58.9   in 1962  
Month Average Temperature   75.1   74.4   72.5   +2.6   76.9   in 2013   67.6   in 1909  
High Heat Index   87   85           98   in 1972            
Low Wind Chill                                      
Heating Degree Days   0   0   0   +0   4   in 2017   0   in 2023  
Month Heating DD   0   0   3   -3   23   in 1914   0   in 2023  
Season Heating DD   0   0   3   -3   23   in 1914   0   in 2023  
Cooling Degree Days   10   11   7   +3   16   in 2010   0   in 2017  
Month Cooling DD   253   236   187   +66   298   in 2013   74   in 1909  
Year Cooling DD   329   331   280   +49   422   in 2010   103   in 1902  
Maximum Dew Point   75   77   69   +6   77   in 2022   53   in 1984  
Minimum Dew Point   65   72   61   +4   72   in 2022   43   in 1976  
Average  Dew Point   70   75   65   +5   75   in 2022   49   in 1976  
 Month Avg Max Dew Point   74.4   70.6   68.5   +5.9   74.4   in 2023   62.1   in 1966  
Month Avg Min Dew Point   66.4   61.8   60.1   +6.4   67.8   in 2013   52.2   in 1957  
Month Average Dew Point   70.4   66.2   64.3   +6.1   70.8   in 2013   57.3   in 1962  
Precipitation   .00   T   .10   -.10   1.33   in 1900            
One Hour Rain   .00   T           .46   in 1990            
Hourly Rain Rate   .00   .00           1.32   in 2009            
Month Precipitation   5.46   .49   2.48   +2.98   8.59   in 2009   .36   in 1952  
Year Precipitation   29.94   23.39   25.05   +4.89   41.06   in 1998   13.67   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 25, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   99%   92%   +7%   100%   in 2018   67%   in 1976  
Minimum Humidity   67%   91%   59%   +8%   91%   in 2022   32%   in 1980  
Average Humidity   83%   95%   76%   +7%   95%   in 2022   51%   in 1980  
Maximum Barometer   30.10   29.93   30.05   +00.05   30.36   in 1985   29.71   in 1965  
Minimum Barometer   30.01   29.83   29.87   +00.14   30.25   in 2004   29.57   in 1977  
Average Barometer   30.06   29.88   29.96   +00.09   30.29   in 2004   29.66   in 1965  
Average Wind   5.0   9.8   5.9   -0.9   11.8   in 1977   1.3   in 1991  
Direction   SSW   SSW   SSW       SSW SW
High Wind Gust   20   31   21   -1   39   in 1997   11   in 1958  
Direction   SSE   SSW   SSW       N SE
Maximum Water Temp   77.5   75.9   71.4   +6.1   77.5   in 2023   64.9   in 1997  
Minimum Water Temp   72.9   73.9   68.3   +4.6   73.9   in 2022   63.5   in 2000  
Average Water Temp   75.2   74.9   69.9   +5.3   75.2   in 2023   64.5   in 1997  
Sunrise/ AM Twilight   5:32:44 AM   5:02:40 AM            
Sunset / PM Twilight   8:09:55 PM   8:40:56 PM            
Length Of Day   14:37:11                          
Special Conditions   Light Fog  
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