Portsmouth Rhode Island Weather Almanac  
Monday, April 11, 2022  
Clear to Partly Cloudy PM, Breezy and Warm  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    April 11, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   57   54   54   +3   77   in 1955   36   in 1918  
Minimum Temperature   38   43   38   +0   48   in 1919   24   in 1909  
Average Temperature   48   49   46   +2   62   in 1955   34   in 1918  
 Month Avg Max Temperature   54.7   56.5   52.0   +2.7   62.8   in 2010   41.5   in 2003  
Month Avg Min Temperature   39.5   37.5   36.8   +2.6   44.4   in 2010   27.9   in 1982  
Month Average Temperature   47.3   47.3   44.7   +2.5   53.8   in 2010   36.8   in 2003  
High Heat Index                                      
Low Wind Chill   31   39   30   +1             17   in 1909  
Heating Degree Days   17   16   19   -2   31   in 1918   3   in 1955  
Month HDD   195   195   223   -28   310   in 2003   123   in 2010  
Season HDD   4495   4515   4873   -378   5922   in 1918   4053   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   37   53   41   -4   56   in 1993   18   in 1970  
Minimum Dew Point   29   41   28   +1   47   in 1993   6   in 1967  
Average  Dew Point   33   47   35   -2   52   in 1993   14   in 1970  
 Month Avg Max Dew Point   42.8   41.7   39.8   +3.0   50.5   in 2010   26.3   in 1965  
Month Avg Min Dew Point   30.9   25.3   26.4   +4.5   38.3   in 2010   11.2   in 1982  
Month Average Dew Point   36.9   33.5   33.1   +3.8   44.4   in 2010   19.8   in 1982  
Precipitation   .00   .08   .14   -.14   1.27   in 2003            
One Hour   .00   .05           .34   in 2003            
Hourly Rate   .00   .11           .15   in 2009            
Month Precipitation   1.58   .85   1.61   -.03   5.72   in 1983   .03   in 1963  
Year Precipitation   14.48   9.27   13.07   +1.41   24.99   in 1983   6.50   in 2012  
Snow   0.0   0.0   0.0   +0.0   3.5   in 1958       in    
Snow Depth   0   0           7   in 1996       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 11, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   74%   100%   85%   -11%   100%   in 2021   51%   in 1970  
Minimum Humidity   42%   82%   45%   -3%   91%   in 1905   20%   in 1991  
Average Humidity   58%   91%   65%   -7%   96%   in 1905   39%   in 1967  
Maximum Barometer   30.07   29.78   30.08   -00.01   30.69   in 2002   29.46   in 1963  
Minimum Barometer   29.84   29.70   29.82   +00.02   30.51   in 2002   29.14   in 1983  
Average Barometer   29.96   29.74   29.95   +00.00   30.60   in 2002   29.40   in 1963  
Average Wind   9.5   7.3   8.1   +1.4   14.9   in 2003   2.5   in 2004  
Direction   NW   ENE   SW       NNE         NNW        
High Wind Gust   25   27   26   -1   48   in 1990   12   in 2004  
Direction   NW   NNE   NW       SW         NW        
Maximum Water Temp   49.6   46.5   45.7   +3.9   52.2   in 2010   39.5   in 2003  
Minimum Water Temp   47.1   45.2   43.0   +4.1   49.9   in 2010   38.2   in 2003  
Average Water Temp   48.4   45.9   44.3   +4.0   51.1   in 2010   38.9   in 2003  
Sunrise/ AM Twilight   6:11:31 AM   5:41:20 AM            
Sunset / PM Twilight   7:21:19 PM   7:50:57 PM            
Length Of Day   13:09:48                          
Special Conditions   None                              
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