Portsmouth Rhode Island Weather Almanac  
Saturday, April 9, 2022  
Mostly Cloudy & Light Rain Shower early, Partly Cloudy Day to Clear PM, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    April 9, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   55   59   53   +2   78   in 1991   37   in 1997  
Minimum Temperature   43   41   38   +5   50   in 1991   22   in 1977  
Average Temperature   49   50   46   +3   64   in 1991   31   in 1917  
 Month Avg Max Temperature   54.4   56.1   51.7   +2.8   63.3   in 2010   40.4   in 2003  
Month Avg Min Temperature   39.6   36.3   36.6   +3.0   44.8   in 2010   27.2   in 1982  
Month Average Temperature   47.1   46.4   44.4   +2.7   54.2   in 2010   36.1   in 1982  
High Heat Index                                      
Low Wind Chill   41   37   29   +12             9   in 1977  
Heating Degree Days   16   15   19   -3   34   in 1917   1   in 1991  
Month HDD   161   167   185   -24   260   in 1982   97   in 2010  
Season HDD   4461   4487   4835   -374   5865   in 1918   4023   in 2012  
Cooling Degree Days   0   0   0   +0       in         in    
Month CDD   0   0   0   +0   0   in         in    
Year Cooling Degree Days                       in         in    
Maximum Dew Point   48   48   41   +7   63   in 1991   14   in 1977  
Minimum Dew Point   38   41   27   +11   45   in 1991   5   in 1977  
Average  Dew Point   43   45   34   +9   54   in 1991   10   in 1977  
 Month Avg Max Dew Point   44.0   39.1   39.6   +4.4   52.1   in 2010   25.1   in 1965  
Month Avg Min Dew Point   31.4   21.7   26.0   +5.4   40.1   in 2010   10.0   in 1982  
Month Average Dew Point   37.7   30.4   32.8   +4.9   46.1   in 2010   19.3   in 1982  
Precipitation   .01   .00   .14   -.13   2.33   in 1897            
One Hour   .01   .00           .27   in 1974            
Hourly Rate   .00   .00           4.92   in 2020            
Month Precipitation   1.58   .77   1.33   +.25   4.20   in 1957   .00   in 1925  
Year Precipitation   14.48   9.19   12.79   +1.69   21.98   in 1903   6.44   in 2012  
Snow   0.0   0.0   0.0   +0.0   8.0   in 1917       in    
Snow Depth   0   0           5   in 1982       in    
Month Snow   0.0   0.0   0.5   -0.5   8.0   in 1982   0.0   in 2022  
Season Snow   34.2   27.5   33.5   +0.7   80.5   in 1996   5.0   in 1998  
    April 9, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   92%   100%   84%   +8%   100%   in 2021   51%   in 1977  
Minimum Humidity   64%   63%   45%   +19%   92%   in 1974   15%   in 1968  
Average Humidity   78%   82%   65%   +13%   95%   in 1974   39%   in 1977  
Maximum Barometer   29.71   30.21   30.03   -00.32   30.55   in 1994   29.61   in 2020  
Minimum Barometer   29.56   30.12   29.75   -00.19   30.26   in 1994   28.87   in 1907  
Average Barometer   29.64   30.17   29.89   -00.25   30.41   in 1994   29.33   in 2020  
Average Wind   8.1   5.0   8.3   -0.2   18.9   in 2000   2.8   in 1952  
Direction   S   SSW   NNE       SSE         SSE        
High Wind Gust   32   17   26   +6   45   in 2000   13   in 1952  
Direction   SSW   SSW   NNE       WSW         S        
Maximum Water Temp   48.9   45.9   45.0   +3.9   55.9   in 2010   38.5   in 2003  
Minimum Water Temp   46.2   44.5   42.3   +3.9   48.3   in 2010   38.0   in 2003  
Average Water Temp   47.6   45.2   43.7   +3.9   52.1   in 2010   38.3   in 2003  
Sunrise/ AM Twilight   6:14:46 AM   5:44:41 AM            
Sunset / PM Twilight   7:19:08 PM   7:48:39 PM            
Length Of Day   13:04:22                          
Special Conditions   None                              
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