Portsmouth Rhode Island Weather Almanac  
Thursday, April 28, 2022  
Clear early, Mostly Cloudy Day to Partly Cloudy PM, Dry, Windy and Colder  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    April 28, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   51   66   59   -8   82   in 1990   39   in 1898  
Minimum Temperature   38   47   43   -5   55   in 1935   32   in 1992  
Average Temperature   45   57   51   -6   67   in 1935   38   in 1916  
 Month Avg Max Temperature   56.8   56.8   54.8   +1.9   61.0   in 1976   48.0   in 1907  
Month Avg Min Temperature   40.6   39.3   39.1   +1.5   43.0   in 2010   33.6   in 1943  
Month Average Temperature   48.9   48.3   47.3   +1.6   51.6   in 2010   41.5   in 1907  
High Heat Index                                      
Low Wind Chill   30   47   36   -6             22   in 1993  
Heating Degree Days   20   8   14   +6   27   in 1916   0   in 1990  
Month HDD   451   467   497   -46   657   in 1907   374   in 2010  
Season HDD   4751   4787   5147   -396   6229   in 1904   4256   in 2012  
Cooling Degree Days   0   0   0   +0   2   in 1935       in    
Month CDD   0   0   0   +0   13   in 1976       in    
Year Cooling Degree Days   0   0   0   +0   13   in 1976       in    
Maximum Dew Point   30   53   47   -17   60   in 2017   26   in 1967  
Minimum Dew Point   16   35   34   -18   53   in 2011   5   in 1993  
Average  Dew Point   23   44   41   -18   57   in 2011   19   in 1993  
 Month Avg Max Dew Point   44.1   42.6   42.6   +1.5   47.2   in 2019   34.0   in 1965  
Month Avg Min Dew Point   29.8   29.9   29.4   +0.5   36.9   in 2017   20.4   in 1982  
Month Average Dew Point   37.0   36.3   36.0   +1.0   42.0   in 2017   28.6   in 1975  
Precipitation   .00   .04   .14   -.14   2.93   in 1904            
One Hour   .00   .04           .53   in 1988            
Hourly Rate   .00   .21           .84   in 2008            
Month Precipitation   3.50   3.25   3.99   -.49   11.94   in 1983   .47   in 1963  
Year Precipitation   16.40   11.67   15.45   +.95   31.21   in 1983   7.53   in 1985  
Snow   0.0   0.0   0.0   +0.0   0.0   in         in    
Snow Depth   0   0           0   in         in    
Month Snow   0.0   T   0.5   -0.5   9.6   in 1996   0.0   in 2022  
Season Snow   34.2   27.5   33.5   +0.7   84.1   in 1996   5.0   in 1998  
    April 28, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   65%   89%   89%   -24%   100%   in 2018   54%   in 1967  
Minimum Humidity   29%   48%   51%   -22%   96%   in 1905   18%   in 2001  
Average Humidity   47%   69%   70%   -23%   98%   in 1905   41%   in 1972  
Maximum Barometer   29.96   29.97   30.07   -00.11   30.68   in 1966   29.60   in 2010  
Minimum Barometer   29.82   29.79   29.81   +00.01   30.33   in 1966   29.20   in 1973  
Average Barometer   29.89   29.88   29.94   -00.05   30.51   in 1966   29.40   in 1973  
Average Wind   13.9   4.3   7.8   +6.1   19.9   in 1967   1.1   in 1965  
Direction   NW   SSE   N       NNE         S        
High Wind Gust   34   17   26   +8   51   in 1967   13   in 2007  
Direction   NNW   N   N       NNE         SSE        
Maximum Water Temp   50.0   49.3   49.6   +0.4   55.6   in 2007   41.4   in 2020  
Minimum Water Temp   48.4   46.6   47.0   +1.4   51.1   in 2012   39.4   in 2020  
Average Water Temp   49.2   48.0   48.3   +0.9   52.6   in 2012   40.4   in 2020  
Sunrise/ AM Twilight   5:45:57 AM   5:14:40 AM            
Sunset / PM Twilight   7:39:48 PM   8:10:47 PM            
Length Of Day   13:53:51                          
Special Conditions   None                              
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