Portsmouth Rhode Island Weather Almanac  
Tuesday, April 12, 2022  
Cloudy, Light Rain AM, Mostly Cloudy Day to Clear PM, Much Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    April 12, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   66   51   54   +12   77   in 1977   34   in 1918  
Minimum Temperature   45   40   38   +7   50   in 1945   22   in 1976  
Average Temperature   56   46   46   +10   62   in 1945   32   in 1976  
 Month Avg Max Temperature   55.7   56.1   52.2   +3.5   62.8   in 2010   42.8   in 2003  
Month Avg Min Temperature   39.9   37.7   36.9   +3.0   44.1   in 2010   28.3   in 1982  
Month Average Temperature   48.0   47.2   44.8   +3.2   53.7   in 2010   37.6   in 1982  
High Heat Index                                      
Low Wind Chill   41   37   31   +10             8   in 1976  
Heating Degree Days   9   19   19   -10   33   in 1976   3   in 1945  
Month HDD   204   214   242   -38   329   in 1982   136   in 2010  
Season HDD   4504   4534   4892   -388   5954   in 1918   4070   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   51   44   42   +9   55   in 1987   13   in 1976  
Minimum Dew Point   34   37   28   +6   47   in 2008   2   in 1976  
Average  Dew Point   43   41   35   +8   51   in 2008   8   in 1976  
 Month Avg Max Dew Point   43.5   41.9   40.0   +3.5   49.8   in 2010   27.8   in 1965  
Month Avg Min Dew Point   31.2   26.3   26.5   +4.7   37.6   in 2010   12.2   in 1982  
Month Average Dew Point   37.3   34.1   33.3   +4.1   43.7   in 2010   20.5   in 1982  
Precipitation   .04   T   .14   -.10   1.91   in 1913            
One Hour   .03   T           .42   in 2007            
Hourly Rate   .08   .00           1.96   in 2007            
Month Precipitation   1.62   .85   1.75   -.13   5.72   in 1983   .03   in 1963  
Year Precipitation   14.52   9.27   13.21   +1.31   24.99   in 1983   6.57   in 2012  
Snow   0.0   0.0   0.0   +0.0   T   in 1918       in    
Snow Depth   0   0           3   in 1958       in    
Month Snow   0.0   0.0   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 12, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   90%   90%   85%   +5%   100%   in 2003   50%   in 1975  
Minimum Humidity   47%   72%   43%   +4%   86%   in 2008   19%   in 1985  
Average Humidity   69%   81%   64%   +5%   92%   in 2008   37%   in 1963  
Maximum Barometer   30.07   29.94   30.14   -00.07   30.68   in 1909   29.65   in 1963  
Minimum Barometer   29.93   29.71   29.85   +00.08   30.36   in 2002   29.04   in 1932  
Average Barometer   30.00   29.83   29.99   +00.01   30.51   in 2002   29.47   in 1965  
Average Wind   6.2   7.5   7.4   -1.2   15.4   in 1960   2.7   in 1994  
Direction   SW   NE   NW       SSW         SSW        
High Wind Gust   19   28   25   -6   40   in 1960   13   in 1971  
Direction   SSW   ENE   NNW       WSW         S        
Maximum Water Temp   49.3   46.7   45.7   +3.6   53.3   in 2010   39.4   in 2003  
Minimum Water Temp   46.6   45.4   42.9   +3.7   47.6   in 2012   38.4   in 2003  
Average Water Temp   48.0   46.1   44.3   +3.6   49.0   in 2010   38.9   in 2003  
Sunrise/ AM Twilight   6:09:55 AM   5:39:40 AM            
Sunset / PM Twilight   7:22:24 PM   7:52:06 PM            
Length Of Day   13:12:29                          
Special Conditions   None                              
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