Portsmouth Rhode Island Weather Almanac
Saturday, April 20, 2019
Dense Fog early then Cloudy, Moderate Rain and Fog, Windy, Continued Warm and Muggy
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    April 20, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   61   54   57   +4   83   in 1976   38   in 1904  
Minimum Temperature   54   34   41   +13   55   in 1952   21   in 1897  
Average Temperature   58   44   49   +9   67   in 1976   32   in 1897  
Precipitation   .69   .00   .15   +.54   1.34   in 1911            
One Hour   .21   .00           .36   in 1978            
Snow   0.0   0.0   0.0   +0.0   0.6   in 1904            
Snow Depth   0   0           T   in 1904            
HDD   7   21   16   -9   33   in 1897   0   in 1976  
CDD   0   0   0   +0   2   in 1976            
Maximum Dew Point   60   34   43   +17   60   in 2019   22   in 1988  
Minimum Dew Point   53   27   30   +23   53   in 2019   8   in 2007  
Average  Dew Point   57   31   37   +20   57   in 2019   17   in 1988  
Maximum Humidity   100%   81%   87%   +13%   100%   in 2019   51%   in 1988  
Minimum Humidity   96%   41%   47%   +49%   96%   in 2019   13%   in 2007  
Average Humidity   98%   61%   67%   +31%   98%   in 2019   37%   in 1952  
Maximum Barometer   29.99   30.28   30.11   -00.12   30.61   in 1990   29.48   in 1953  
Minimum Barometer   29.83   29.87   29.85   -00.02   30.33   in 2014   29.00   in 1978  
Average Barometer   29.91   30.08   29.98   -00.07   30.44   in 1966   29.33   in 1983  
Average Wind   14.6   11.0   7.7   +6.9   16.0   in 1975   3.2   in 1965  
Direction   S   NW   S       W         NNW        
High Wind Gust   32   28   26   +6   46   in 1975   15   in 1976  
Direction   SSE   NNW   S       WSW         WNW        
High Heat Index                                      
Wind Chill   49   27   35   +14             19   in 1988  
Maximum Water Temp   46.0   43.2   48.2   -2.2   54.0   in 2012   43.2   in 2018  
Minimum Water Temp   43.7   41.2   45.1   -1.4   50.8   in 2012   41.2   in 2018  
Average Water Temp   44.9   42.2   46.6   -1.7   52.4   in 2012   42.2   in 2018  
Sunrise/ AM Twilight   5:56:41 AM   5:27:34 AM            
Sunset / PM Twilight   7:31:24 PM   8:00:31 PM            
Length Of Day   13:34:43                          
Special Conditions   Dense Fog                              
Comments      
    April 20, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   55.5   48.3   53.7   +1.8   61.2   in 1976   45.7   in 1907  
Avg Minimum Temperature   40.3   34.6   37.5   +2.8   42.8   in 2002   31.5   in 1943  
Average Temperature   47.9   41.5   45.8   +2.1   51.7   in 1945   39.1   in 1907  
Total Precipitation   3.69   2.24   3.13   +.56   9.19   in 1983   .08   in 1966  
Total Snow   0.0   3.6   1.0   -1.0   9.6   in 1996   0.0   in 2019  
Total HDD   337   466   381   -44   514   in 1907   261   in 1945  
Total CDD   0   0   0   +0   13   in 1976   0   in    
Avg Maximum Dew Point   44.7   39.2   40.5   +4.2   47.1   in 2002   31.9   in 1965  
Avg Minimum Dew Point   30.3   24.6   27.2   +3.0   35.8   in 2010   18.1   in 1982  
Average  Dew Point   37.5   32.1   33.9   +3.6   41.0   in 2010   26.3   in 1992  
    April 20, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   16.20   18.63   15.50   +.70   28.46   in 1983   6.69   in 2012  
Total Snow (since Jul 1 18)   21.1   45.6   31.8   -10.7   84.1   in 1996   5.0   in 1998  
Total HDD (since Jul 1 18)   5078   4950   5158   -80   6105   in 1918   4142   in 2012  
Total CDD (since Jan 1)   0   0   0   +0   13   in 1976   0   in    
                             
Hour-by-Hour Weather For April 20, 2019  
Climate Weather for April 20  
Weather History For April 20  
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