Portsmouth Rhode Island Weather Almanac  
Tuesday, June 13, 2023  
Cloudy, Rain, Dense Fog early then Partly Cloudy, Warm & Humid  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    June 13, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   73   81   73   +0   93   in 1956   55   in 1982  
Minimum Temperature   62   65   57   +5   68   in 1988   45   in 1976  
Average Temperature   68   73   65   +3   78   in 2017   51   in 1982  
 Month Avg Max Temperature   69.8   74.1   71.2   -1.5   78.6   in 1925   60.8   in 1907  
Month Avg Min Temperature   53.0   57.7   55.0   -2.0   60.1   in 2008   46.8   in 1907  
Month Average Temperature   61.6   66.0   63.2   -1.6   68.9   in 1899   53.9   in 1907  
High Heat Index   74   84           97   in 1956            
Low Wind Chill                             43   in 1976  
Heating Degree Days   0   0   2   -2   14   in 1982   0   in 2023  
Month Heating DD   54   10   36   +18   144   in 1907   2   in 1899  
Season Heating DD   4776   4995   5464   -688   6601   in 1905   4409   in 1932  
Cooling Degree Days   3   8   2   +1   13   in 2017   0   in 2019  
Month Cooling DD   10   23   17   -7   72   in 1984   0   in 2003  
Year Cooling DD   19   46   28   -9   76   in 1991   0   in 2003  
Maximum Dew Point   67   70   62   +5   72   in 2005   44   in 1979  
Minimum Dew Point   60   62   52   +8   64   in 2005   30   in 1960  
Average  Dew Point   64   66   57   +7   68   in 2005   41   in 1979  
 Month Avg Max Dew Point   59.2   62.4   60.3   -1.1   65.4   in 2021   49.4   in 1988  
Month Avg Min Dew Point   50.5   53.1   50.3   +0.2   56.2   in 2005   41.1   in 1988  
Month Average Dew Point   54.9   57.7   55.2   -0.3   60.3   in 2005   45.2   in 1988  
Precipitation   .26   .69   .12   +.14   3.86   in 1998            
One Hour Rain   .14   .59           .92   in 1998            
Hourly Rain Rate   2.08   6.70           6.70   in 2022            
Month Precipitation   .63   2.03   1.53   -.90   7.34   in 1982   T   in 1949  
Year Precipitation   21.30   21.23   20.57   +.73   36.73   in 1983   12.64   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 13, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   98%   92%   +7%   100%   in 2018   63%   in 1956  
Minimum Humidity   77%   67%   60%   +17%   97%   in 1998   27%   in 1990  
Average Humidity   88%   83%   76%   +12%   99%   in 1998   53%   in 1979  
Maximum Barometer   29.71   29.95   30.01   -00.30   30.41   in 1976   29.54   in 1955  
Minimum Barometer   29.62   29.83   29.79   -00.17   30.18   in 2004   29.36   in 1985  
Average Barometer   29.67   29.89   29.90   -00.23   30.24   in 2004   29.50   in 1955  
Average Wind   7.0   4.7   6.0   +1.0   12.9   in 1975   2.6   in 1990  
Direction   S   SW   SW       S WNW
High Wind Gust   21   19   21   -0   37   in 1965   13   in 2011  
Direction   SSW   SW   SSW       NW SSE
Maximum Water Temp   63.5   65.3   63.3   +0.2   69.4   in 2008   57.2   in 1998  
Minimum Water Temp   61.3   63.0   59.7   +1.6   66.0   in 2007   53.7   in 2006  
Average Water Temp   62.4   64.2   61.5   +0.9   66.8   in 2007   56.3   in 2003  
Sunrise/ AM Twilight   5:10:28 AM   4:36:53 AM            
Sunset / PM Twilight   8:19:57 PM   8:54:14 PM            
Length Of Day   15:09:29                          
Special Conditions   Dense Fog                              
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