Portsmouth Rhode Island Weather Almanac
Monday, April 20, 2020
Mostly Cloudy and Colder
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    April 12, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   54   61   57   -3   83   in 1976   38   in 1904  
Minimum Temperature   33   54   41   -8   55   in 1952   21   in 1897  
Average Temperature   44   58   49   -5   67   in 1976   32   in 1897  
Precipitation   .00   .69   .15   -.15   1.34   in 1911            
One Hour   .00   .21           .36   in 1978            
Snow   0.0   0.0   0.0   +0.0   0.6   in 1904            
Snow Depth   0   0           T   in 1904            
HDD   21   7   16   +5   33   in 1897   0   in 1976  
CDD   0   0   0   +0   2   in 1976            
Maximum Dew Point   43   60   43   -0   60   in 2019   22   in 1988  
Minimum Dew Point   27   53   30   -3   53   in 2019   8   in 2007  
Average  Dew Point   35   57   37   -2   57   in 2019   17   in 1988  
Maximum Humidity   81%   100%   87%   -6%   100%   in 2019   51%   in 1988  
Minimum Humidity   53%   96%   47%   +6%   96%   in 2019   13%   in 2007  
Average Humidity   67%   98%   67%   -0%   98%   in 2019   37%   in 1952  
Maximum Barometer   29.70   29.99   30.11   -00.41   30.61   in 1990   29.48   in 1953  
Minimum Barometer   29.59   29.83   29.85   -00.26   30.33   in 2014   29.00   in 1978  
Average Barometer   29.65   29.91   29.98   -00.33   30.44   in 1966   29.33   in 1983  
Average Wind   7.3   14.6   7.7   -0.4   16.0   in 1975   3.2   in 1965  
Direction   NNE   S   S       W         NNW        
High Wind Gust   20   32   26   -6   46   in 1975   15   in 1976  
Direction   NE   SSE   S       WSW         WNW        
High Heat Index                                      
Wind Chill   33   49   35   -2             19   in 1988  
Maximum Water Temp   42.3   46.0   48.2   -5.9   54.0   in 2012   42.3   in 2020  
Minimum Water Temp   40.5   43.7   45.1   -4.6   50.8   in 2012   40.5   in 2020  
Average Water Temp   41.4   44.9   46.6   -5.2   52.4   in 2012   41.4   in 2020  
Sunrise/ AM Twilight   5:55:33 AM   5:26:22 AM            
Sunset / PM Twilight   7:32:13 PM   8:01:24 PM            
Length Of Day   13:34:43                          
Special Conditions   None                                  
Comments      
    April 12, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   52.6   55.2   53.5   -1.0   61.2   in 1976   45.7   in 1907  
Avg Minimum Temperature   38.0   39.6   37.3   +0.6   42.8   in 2002   31.5   in 1943  
Average Temperature   45.3   47.4   45.6   -0.4   51.7   in 1945   39.1   in 1907  
Total Precipitation   3.76   3.00   2.98   +.78   9.19   in 1983   .08   in 1966  
Total Snow   0.0   0.0   1.0   -1.0   9.6   in 1996   0.0   in 2019  
Total HDD   390   330   365   +25   514   in 1907   261   in 1945  
Total CDD   0   0   0   +0   13   in 1976   0   in      
Avg Maximum Dew Point   41.7   43.9   40.3   +1.4   47.1   in 2002   31.9   in 1965  
Avg Minimum Dew Point   29.1   29.1   27.1   +2.0   35.8   in 2010   18.1   in 1982  
Average  Dew Point   35.4   36.5   33.7   +1.7   41.0   in 2010   26.3   in 1992  
    April 12, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   14.52   15.51   15.35   -.83   28.46   in 1983   6.69   in 2012  
Total Snow (since Jul 1 18)   12.9   21.1   31.8   -18.9   84.1   in 1996   5.0   in 1998  
Total HDD (since Jul 1 18)   4615   5071   5142   -527   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, 2020  
Climate Weather for April 20  
Weather History For April 20  
Weather Calendar  
Back To Weather Stat Page  
Home