Portsmouth Rhode Island Weather Almanac  
Monday, April 18, 2022  
Clear to Mostly Cloudy PM, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    April 18, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   53   58   56   -3   80   in 1976   39   in 1921  
Minimum Temperature   33   40   40   -7   53   in 2002   29   in 2003  
Average Temperature   43   49   48   -5   67   in 1976   36   in 1921  
 Month Avg Max Temperature   56.9   54.8   53.2   +3.8   61.9   in 1945   45.7   in 2007  
Month Avg Min Temperature   40.8   38.2   37.7   +3.1   42.7   in 2010   30.9   in 1943  
Month Average Temperature   49.1   46.8   45.7   +3.3   52.4   in 1945   39.3   in 1907  
High Heat Index                                      
Low Wind Chill   31   39   34   -3             19   in 1971  
Heating Degree Days   22   16   17   +5   29   in 1921   0   in 1976  
Month HDD   287   328   347   -60   463   in 1907   227   in 1945  
Season HDD   4587   4648   4997   -410   6059   in 1918   4121   in 2012  
Cooling Degree Days   0   0   0   +0   2   in 1976       in    
Month CDD   0   0   0   +0   6   in 2002       in    
Year Cooling Degree Days   0   0   0   +0   6   in 2002       in    
Maximum Dew Point   37   44   44   -7   59   in 2002   23   in 1990  
Minimum Dew Point   27   36   31   -4   50   in 2002   11   in 1985  
Average  Dew Point   32   40   37   -5   55   in 2002   20   in 1990  
 Month Avg Max Dew Point   44.6   42.0   40.9   +3.6   46.6   in 2010   31.1   in 1975  
Month Avg Min Dew Point   31.2   29.4   27.6   +3.6   35.7   in 2010   16.6   in 1992  
Month Average Dew Point   37.9   35.7   34.2   +3.6   41.1   in 2010   24.3   in 1992  
Precipitation   .00   .00   .14   -.14   2.05   in 1967            
One Hour   .00   .00           .33   in 1967            
Hourly Rate   .00   .00           .38   in 2020            
Month Precipitation   1.91   2.65   2.59   -.68   6.74   in 1983   .08   in 1966  
Year Precipitation   14.81   11.07   14.05   +.76   26.01   in 1983   6.69   in 2012  
Snow   0.0   0.0   0.0   +0.0   T   in 2001       in    
Snow Depth   0   0           T   in 2005       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 18, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   82%   90%   86%   -4%   100%   in 2001   58%   in 2008  
Minimum Humidity   40%   49%   45%   -5%   97%   in 1987   14%   in 2005  
Average Humidity   61%   70%   66%   -5%   99%   in 1987   39%   in 1950  
Maximum Barometer   30.38   29.82   30.06   +00.32   30.60   in 2014   29.49   in 1997  
Minimum Barometer   30.06   29.75   29.80   +00.26   30.50   in 2003   28.99   in 1997  
Average Barometer   30.22   29.79   29.93   +00.29   30.54   in 2003   29.24   in 1997  
Average Wind   7.6   5.2   7.5   +0.1   20.2   in 1986   3.5   in 1978  
Direction   SSE   NW   WNW       NNE         SSE        
High Wind Gust   25   24   25   +0   47   in 1986   13   in 1953  
Direction   E   SSW   NW       NNE         SE        
Maximum Water Temp   49.1   46.5   47.3   +1.8   55.4   in 2012   42.3   in 2020  
Minimum Water Temp   46.6   45.7   44.5   +2.1   49.8   in 2012   39.9   in 2020  
Average Water Temp   47.9   46.1   45.9   +1.9   52.6   in 2012   41.1   in 2020  
Sunrise/ AM Twilight   6:00:31 AM   5:29:55 AM            
Sunset / PM Twilight   7:28:56 PM   7:59:04 PM            
Length Of Day   13:28:25                          
Special Conditions   None                              
Comments                                      
Hour-by-Hour Weather For April 18, 2022            
Climate Weather for April 18            
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