Portsmouth Rhode Island Weather Almanac  
Tuesday, June 27, 2023  
Cloudy, Heavy Rain, Thunderstroms early, Mostly Cloudy Day to Cloudy PM, Windy, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    June 27, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   76   70   77   -1   93   in 1963   60   in 1938  
Minimum Temperature   66   65   62   +4   68   in 2021   49   in 1893  
Average Temperature   71   68   70   +1   77   in 1953   58   in 1985  
 Month Avg Max Temperature   72.3   74.5   73.3   -1.0   78.7   in 1943   66.1   in 1903  
Month Avg Min Temperature   56.4   57.7   57.4   -1.0   60.7   in 2001   52.4   in 1907  
Month Average Temperature   64.6   66.3   65.4   -0.9   68.9   in 1949   60.2   in 1903  
High Heat Index   79   72           97   in 1964            
Low Wind Chill                                      
Heating Degree Days   0   0   1   -1   7   in 1985   0   in 2023  
Month Heating DD   61   24   50   +11   159   in 1907   5   in 1899  
Season Heating DD   4783   5009   5478   -695   6619   in 1905   4444   in 1932  
Cooling Degree Days   6   3   4   +2   12   in 1953   0   in 2015  
Month Cooling DD   49   60   65   -16   138   in 1949   5   in 1972  
Year Cooling DD   58   83   77   -19   151   in 1957   5   in 1972  
Maximum Dew Point   71   66   67   +4   74   in 2010   47   in 1965  
Minimum Dew Point   65   62   57   +8   68   in 2006   40   in 1995  
Average  Dew Point   68   64   62   +6   70   in 2006   45   in 1965  
 Month Avg Max Dew Point   62.7   62.8   62.5   +0.2   65.6   in 2010   53.9   in 1965  
Month Avg Min Dew Point   54.5   53.5   52.7   +1.8   56.9   in 2010   44.4   in 1958  
Month Average Dew Point   58.6   58.1   57.5   +1.1   61.3   in 2010   49.4   in 1965  
Precipitation   1.29   .99   .11   +1.18   2.24   in 1938            
One Hour Rain   .52   .38           .52   in 2023            
Hourly Rain Rate   6.62   4.54           6.62   in 2023            
Month Precipitation   3.01   3.70   3.20   -.19   8.93   in 1982   .05   in 1949  
Year Precipitation   23.68   22.90   22.24   +1.44   38.39   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 27, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   98%   93%   +6%   100%   in 2013   69%   in 1963  
Minimum Humidity   82%   87%   59%   +23%   98%   in 1987   29%   in 2014  
Average Humidity   91%   93%   76%   +14%   99%   in 1987   52%   in 1963  
Maximum Barometer   29.84   30.04   30.03   -00.19   30.50   in 1965   29.53   in 1954  
Minimum Barometer   29.73   29.93   29.83   -00.10   30.34   in 1965   29.29   in 1970  
Average Barometer   29.79   29.99   29.93   -00.14   30.42   in 1965   29.48   in 1954  
Average Wind   10.8   7.5   6.1   +4.7   14.6   in 1985   1.7   in 1967  
Direction   S   SW   SSW       N ENE
High Wind Gust   29   27   21   +8   38   in 1985   9   in 1974  
Direction   S   SW   S       NNE S
Maximum Water Temp   68.5   69.1   67.8   +0.7   76.3   in 2007   62.8   in 2020  
Minimum Water Temp   67.3   66.6   64.1   +3.2   70.6   in 2007   58.2   in 2005  
Average Water Temp   67.9   67.9   66.0   +1.9   73.5   in 2007   60.9   in 2020  
Sunrise/ AM Twilight   5:12:55 AM   4:40:00 AM            
Sunset / PM Twilight   8:23:14 PM   8:57:07 PM            
Length Of Day   15:10:19                          
Special Conditions   Fog, Strong Thunderstorm                        
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