Portsmouth Rhode Island Weather Almanac  
Sunday, June 11, 2023  
Partly Cloudy, Afternoon Haze, Light Winds and Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    June 11, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   75   76   72   +3   88   in 1997   54   in 1910  
Minimum Temperature   55   58   56   -1   69   in 2008   43   in 1980  
Average Temperature   65   67   64   +1   77   in 2008   52   in 1910  
 Month Avg Max Temperature   68.9   73.6   70.9   -2.0   79.9   in 1925   59.9   in 1907  
Month Avg Min Temperature   51.5   56.6   54.6   -3.1   60.5   in 2008   47.0   in 1907  
Month Average Temperature   60.5   65.3   62.9   -2.5   69.9   in 1925   53.5   in 1907  
High Heat Index   75   76           92   in 1894            
Low Wind Chill                             41   in 1980  
Heating Degree Days   0   0   2   -2   13   in 1910   0   in 2023  
Month Heating DD   54   10   32   +22   126   in 1907   2   in 1936  
Season Heating DD   4776   4995   5460   -684   6596   in 1905   4403   in 1932  
Cooling Degree Days   0   2   2   -2   12   in 2008   0   in 2023  
Month Cooling DD   4   13   13   -9   64   in 1925   0   in 2003  
Year Cooling DD   13   36   24   -11   73   in 1991   0   in 2003  
Maximum Dew Point   64   61   61   +3   71   in 1996   38   in 1972  
Minimum Dew Point   54   53   52   +2   62   in 1996   32   in 1971  
Average  Dew Point   59   57   56   +3   67   in 1996   36   in 1972  
 Month Avg Max Dew Point   57.7   61.5   60.0   -2.3   66.1   in 2021   48.2   in 1988  
Month Avg Min Dew Point   48.9   51.7   50.0   -1.1   56.1   in 2008   39.3   in 1988  
Month Average Dew Point   53.3   56.6   54.9   -1.6   60.8   in 2008   43.7   in 1988  
Precipitation   .00   .00   .12   -.12   1.19   in 2013            
One Hour Rain   .00   .00           .74   in 2001            
Hourly Rain Rate   .00   .00           3.29   in 2019            
Month Precipitation   .25   1.34   1.29   -1.04   6.84   in 1982   T   in 1967  
Year Precipitation   20.92   20.54   20.33   +.59   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 11, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   95%   88%   +11%   100%   in 2003   55%   in 1985  
Minimum Humidity   57%   45%   54%   +3%   91%   in 1968   23%   in 1971  
Average Humidity   78%   70%   71%   +7%   94%   in 1968   41%   in 1985  
Maximum Barometer   29.92   29.95   30.02   -00.10   30.40   in 1999   29.51   in 1952  
Minimum Barometer   29.85   29.89   29.82   +00.03   30.29   in 1999   29.43   in 1952  
Average Barometer   29.89   29.92   29.92   -00.03   30.35   in 1999   29.47   in 1952  
Average Wind   4.1   3.0   6.4   -2.3   12.2   in 1977   1.3   in 1963  
Direction   S   NW   SSW       NNW NE
High Wind Gust   16   14   22   -6   34   in 2020   12   in 1968  
Direction   S   SW   SSW       WSW NNE
Maximum Water Temp   63.3   65.7   62.8   +0.5   67.5   in 2007   56.7   in 2020  
Minimum Water Temp   60.3   62.6   59.4   +0.9   64.8   in 2007   54.8   in 2003  
Average Water Temp   61.8   64.2   61.1   +0.7   66.1   in 2007   55.9   in 2020  
Sunrise/ AM Twilight   5:10:38 AM   4:37:02 AM            
Sunset / PM Twilight   8:19:00 PM   8:53:15 PM            
Length Of Day   15:08:22                          
Special Conditions   Fog, Haze                              
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