Portsmouth Rhode Island Weather Almanac  
Monday, June 26, 2023  
Cloudy, Light Rain/Dense Fog early, Mostly Cloudy Day to Cloudy PM, Warm and Muggy  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    June 26, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   79   84   77   +2   95   in 1952   61   in 1974  
Minimum Temperature   67   64   62   +5   71   in 1909   46   in 1979  
Average Temperature   73   74   69   +4   82   in 1952   58   in 1979  
 Month Avg Max Temperature   72.2   74.7   73.2   -1.0   78.6   in 1957   65.7   in 1903  
Month Avg Min Temperature   56.0   57.5   57.2   -1.2   60.5   in 2001   52.2   in 1907  
Month Average Temperature   64.3   66.3   65.3   -1.0   68.7   in 1949   59.9   in 1903  
High Heat Index   83   88           105   in 1952            
Low Wind Chill                                      
Heating Degree Days   0   0   1   -1   7   in 1979   0   in 2023  
Month Heating DD   61   24   49   +12   159   in 1907   5   in 1899  
Season Heating DD   4783   5009   5477   -694   6619   in 1905   4444   in 1932  
Cooling Degree Days   8   9   5   +3   17   in 1952   0   in 2018  
Month Cooling DD   43   57   60   -17   129   in 1949   5   in 1972  
Year Cooling DD   52   80   72   -20   142   in 1957   5   in 1972  
Maximum Dew Point   74   71   66   +8   77   in 1998   46   in 1965  
Minimum Dew Point   67   61   57   +10   67   in 2023   37   in 1965  
Average  Dew Point   71   66   62   +9   72   in 1998   42   in 1965  
 Month Avg Max Dew Point   62.3   62.7   62.3   +0.0   65.3   in 2021   54.2   in 1965  
Month Avg Min Dew Point   54.1   53.2   52.5   +1.5   56.7   in 2010   44.2   in 1958  
Month Average Dew Point   58.2   57.9   57.3   +0.9   61.0   in 2010   49.6   in 1965  
Precipitation   .02   .00   .12   -.10   2.20   in 1988            
One Hour Rain   .01   .00           .69   in 1997            
Hourly Rain Rate   .00   .00           9.60   in 2004            
Month Precipitation   1.72   2.71   3.09   -1.37   8.93   in 1982   .05   in 1949  
Year Precipitation   22.39   21.91   22.13   +.26   38.25   in 1998   12.67   in 1957  
Snow                                      
Snow Depth                                      
Month Snow                                      
Season Snow   9.1   34.7   33.5   -24.4   84.1   in 1996   5.0   in 1998  
    June 26, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   97%   92%   +7%   100%   in 2021   67%   in 1960  
Minimum Humidity   85%   62%   57%   +28%   93%   in 1968   28%   in 1951  
Average Humidity   92%   80%   75%   +17%   97%   in 1968   51%   in 1960  
Maximum Barometer   29.86   30.12   30.02   -00.16   30.49   in 1979   29.69   in 2012  
Minimum Barometer   29.80   30.04   29.84   -00.04   30.27   in 2001   29.25   in 1902  
Average Barometer   29.83   30.08   29.93   -00.10   30.38   in 1979   29.61   in 1988  
Average Wind   6.5   5.6   5.8   +0.7   11.4   in 1968   2.1   in 1965  
Direction   SSE   S   SW       ENE NW
High Wind Gust   25   21   21   +4   39   in 1945   10   in 1959  
Direction   S   S   S       NE SSE
Maximum Water Temp   69.1   69.1   67.8   +1.3   75.3   in 2007   62.6   in 2009  
Minimum Water Temp   67.1   66.9   63.7   +3.4   69.8   in 2007   59.3   in 2005  
Average Water Temp   68.1   68.0   65.7   +2.4   72.5   in 2007   61.6   in 2009  
Sunrise/ AM Twilight   5:12:33 AM   4:39:33 AM            
Sunset / PM Twilight   8:23:13 PM   8:57:10 PM            
Length Of Day   15:10:40                          
Special Conditions   Dense Fog                              
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