Portsmouth Rhode Island Weather Almanac
Saturday, April 11, 2020
Clear early, Mostly Cloudy Day to Cloudy, Ice Pellets and Rain PM, Windy and Cool
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    April 11, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   53   51   54   -1   77   in 1955   36   in 1918  
Minimum Temperature   37   34   38   -1   48   in 1919   24   in 1909  
Average Temperature   45   43   46   -1   62   in 1955   34   in 1918  
Precipitation   .00   .00   .16   -.16   1.27   in 2003            
One Hour   .00   .00           .34   in 2003            
Snow   0.0   0.0   0.0   +0.0   3.5   in 1958            
Snow Depth   0   0           7   in 1996            
HDD   20   22   19   +1   31   in 1918   3   in 1955  
CDD   0   0   0   +0   0   in              
Maximum Dew Point   35   35   41   -6   56   in 1993   18   in 1970  
Minimum Dew Point   24   21   27   -3   47   in 1993   6   in 1967  
Average  Dew Point   30   28   34   -4   52   in 1993   14   in 1970  
Maximum Humidity   89%   78%   84%   +5%   100%   in 2018   51%   in 1970  
Minimum Humidity   34%   32%   45%   -11%   91%   in 2011   20%   in 1991  
Average Humidity   62%   55%   65%   -3%   96%   in 2011   39%   in 1967  
Maximum Barometer   30.05   30.32   30.09   -00.04   30.69   in 2002   29.46   in 1963  
Minimum Barometer   29.60   30.08   29.83   -00.23   30.51   in 2002   29.14   in 1983  
Average Barometer   29.83   30.20   29.96   -00.13   30.60   in 2002   29.40   in 1963  
Average Wind   11.6   7.5   8.1   +3.5   14.9   in 2003   2.5   in 2004  
Direction   W   SSW   SW       NNE         NNW        
High Wind Gust   28   23   26   +2   48   in 1990   12   in 2004  
Direction   WNW   NNW   SW       SW         NW        
High Heat Index                                      
Wind Chill   30   26   30   -0             18   in 1973  
Maximum Water Temp   40.9   43.2   45.6   -4.7   52.2   in 2010   39.5   in 2003  
Minimum Water Temp   39.1   40.8   42.9   -3.8   49.9   in 2010   38.2   in 2003  
Average Water Temp   40.0   42.0   44.3   -4.3   51.1   in 2010   38.9   in 2003  
Sunrise/ AM Twilight   6:09:26 AM   5:40:56 AM            
Sunset / PM Twilight   7:22:27 PM   7:50:57 PM            
Length Of Day   13:11:00                          
Special Conditions   None                                  
Comments      
    April 11, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   52.5   52.4   52.2   +0.4   62.8   in 2010   41.5   in 2003  
Avg Minimum Temperature   38.3   36.0   36.0   +2.3   44.4   in 2010   27.9   in 1982  
Average Temperature   45.4   44.2   44.4   +1.0   53.6   in 2010   36.6   in 2003  
Total Precipitation   1.45   1.76   1.76   -.31   5.72   in 1983   .03   in 1963  
Total Snow   0.0   0.0   1.0   -1.0   9.6   in 1996   0.0   in 2019  
Total HDD   213   227   227   -14   310   in 2003   123   in 2010  
Total CDD   0   0   0   +0   0   in 2020   0   in    
Avg Maximum Dew Point   40.5   39.0   39.1   +1.3   50.5   in 2010   26.3   in 1965  
Avg Minimum Dew Point   29.9   23.2   25.9   +4.0   38.3   in 2010   11.2   in 1982  
Average  Dew Point   35.2   31.1   32.5   +2.7   44.4   in 2010   19.8   in 1982  
    April 11, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   12.21   14.27   14.13   -1.92   24.99   in 1983   6.50   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)   4438   4968   5004   -566   5922   in 1918   4053   in 2012  
Total CDD (since Jan 1)   0   0   0   +0   0   in 2020   0   in    
                             
Hour-by-Hour Weather For April 11, 2020  
Climate Weather for April 11  
Weather History For April 11  
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