Portsmouth Rhode Island Weather Almanac
Wednesday, April 29, 2020
Clear to Cloudy Evening, Continued Cool
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    April 29, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   61   58   60   +1   82   in 1903   43   in 1898  
Minimum Temperature   35   39   44   -9   52   in 2017   30   in 1992  
Average Temperature   48   49   51   -3   65   in 1903   40   in 1909  
Precipitation   .00   .02   .14   -.14   2.19   in 1980            
One Hour   .00   .02           .94   in 1980            
Snow   0.0   0.0   0.0   +0.0   1.3   in 1909            
Snow Depth   0   0           0   in              
HDD   17   16   13   +4   25   in 1909   0   in 1903  
CDD   0   0   0   +0   0   in              
Maximum Dew Point   44   42   46   -2   63   in 2017   27   in 1967  
Minimum Dew Point   34   30   33   +1   48   in 2017   10   in 2012  
Average  Dew Point   39   36   40   -1   56   in 2017   22   in 1977  
Maximum Humidity   95%   91%   87%   +8%   100%   in 2011   50%   in 1977  
Minimum Humidity   42%   35%   49%   -7%   91%   in 1956   16%   in 2012  
Average Humidity   69%   63%   68%   +1%   95%   in 1958   38%   in 1977  
Maximum Barometer   30.36   30.39   30.07   +00.29   30.51   in 2001   29.71   in 1987  
Minimum Barometer   30.19   30.18   29.83   +00.36   30.38   in 2001   29.25   in 1987  
Average Barometer   30.28   30.29   29.95   +00.32   30.45   in 2001   29.48   in 1987  
Average Wind   6.8   8.1   7.0   -0.2   13.4   in 1958   2.3   in 2007  
Direction   SE   SSW   N       E         SSE        
High Wind Gust   21   24   24   -3   42   in 2010   12   in 2007  
Direction   SE   S   N       WNW         ESE        
High Heat Index                                      
Wind Chill   35   36   37   -2             23   in 1992  
Maximum Water Temp   43.5   49.6   50.6   -7.1   55.6   in 2007   43.5   in 2020  
Minimum Water Temp   40.5   46.0   47.5   -7.0   52.5   in 2012   40.5   in 2020  
Average Water Temp   42.0   47.8   49.0   -7.0   53.6   in 2012   42.0   in 2020  
Sunrise/ AM Twilight   5:42:54 AM   5:12:54 AM            
Sunset / PM Twilight   7:41:57 PM   8:11:57 PM            
Length Of Day   13:57:13                          
Special Conditions   Light Fog                              
Comments      
    April 29, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   52.2   56.8   55.2   -3.0   61.0   in 1976   48.4   in 1907  
Avg Minimum Temperature   37.3   41.8   39.0   -1.7   43.0   in 2010   33.8   in 1943  
Average Temperature   44.8   49.3   47.1   -2.3   51.4   in 2010   41.6   in 1907  
Total Precipitation   5.10   4.92   4.40   +.70   11.94   in 1983   .47   in 1963  
Total Snow   0.0   0.0   1.0   -1.0   9.6   in 1996   0.0   in 2019  
Total HDD   579   450   513   +66   671   in 1907   386   in 2010  
Total CDD   0   0   0   +0   13   in 1976   0   in      
Avg Maximum Dew Point   41.4   47.0   41.9   -0.4   47.6   in 2017   34.2   in 1965  
Avg Minimum Dew Point   29.0   33.2   28.6   +0.4   37.3   in 2017   20.3   in 1982  
Average  Dew Point   35.2   40.1   35.3   -0.0   42.4   in 2017   28.7   in 1975  
    April 29, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   15.86   17.43   16.77   -.91   31.21   in 1983   7.53   in 1985  
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)   4804   5191   5290   -486   6242   in 1904   4271   in 2012  
Total CDD (since Jan 1)   0   0   0   +0   13   in 1976   0   in    
                             
Hour-by-Hour Weather For April 29, 2020  
Climate Weather for April 29  
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