Portsmouth Rhode Island Weather Almanac
Sunday, March 29, 2020
Cloudy, Rainy, Foggy/Hazy, Thunderstorm 940pm, Windy and Cooler
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    March 29, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   46   51   49   -3   73   in 1946   28   in 1919  
Minimum Temperature   42   42   34   +8   46   in 1998   5   in 1923  
Average Temperature   44   47   42   +2   59   in 1910   18   in 1923  
Precipitation   .60   T   .17   +.43   1.80   in 2010        
One Hour   .12   T           .65   in 1997            
Snow   0.0   0.0   0.1   -0.1   5.4   in 1970            
Snow Depth   0   0           2   in 2015            
HDD   21   18   23   -2   47   in 1923   6   in 1910  
CDD   0   0   0   +0   0   in              
Maximum Dew Point   44   44   37   +7   56   in 1989   13   in 1966  
Minimum Dew Point   41   38   24   +17   44   in 1998   -4   in 1974  
Average  Dew Point   43   41   31   +13   50   in 1998   7   in 1974  
Maximum Humidity   96%   87%   86%   +10%   100%   in 2018   36%   in 2007  
Minimum Humidity   89%   76%   50%   +39%   92%   in 2009   14%   in 2007  
Average Humidity   93%   82%   68%   +25%   96%   in 1993   25%   in 2007  
Maximum Barometer   30.15   30.26   30.10   +00.05   30.74   in 1990   29.46   in 1984  
Minimum Barometer   29.88   30.07   29.82   +00.06   30.43   in 2004   28.96   in 1984  
Average Barometer   30.02   30.17   29.96   +00.06   30.53   in 1990   29.21   in 1984  
Average Wind   14.5   7.4   8.0   +6.5   22.7   in 1984   3.9   in 2018  
Direction   E   SSW   SSW       ENE         S        
High Wind Gust   30   23   25   +5   52   in 1984   13   in 1973  
Direction   E   SSW   SSW       NE         SSE        
Wind Chill   33   38   27   +6             5   in 1966  
Maximum Water Temp   39.8   40.1   42.5   -2.7   46.8   in 2012   38.7   in 2015  
Minimum Water Temp   38.8   39.2   40.1   -1.3   45.7   in 2012   35.8   in 2015  
Average Water Temp   39.3   39.7   41.3   -2.0   46.3   in 2012   37.3   in 2015  
Sunrise/ AM Twilight   6:30:50 AM   6:03:02 AM            
Sunset / PM Twilight   7:08:22 PM   7:36:11 PM            
Length Of Day   12:37:32                          
Special Conditions   Fog, Haze, Thunderstorm                          
Comments      
    March 29, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   51.3   43.3   45.6   +5.8   52.2   in 1946   34.9   in 1916  
Avg Minimum Temperature   35.7   29.4   30.1   +5.6   37.6   in 2012   22.6   in 1916  
Average Temperature   43.5   36.3   37.8   +5.7   44.9   in 2012   28.8   in 1916  
Total Precipitation   4.95   3.25   4.84   +.11   9.61   in 2010   .22   in 1915  
Total Snow   0.7   9.8   4.9   -4.2   31.6   in 1956   0.0   in 1903  
Total HDD   617   822   780   -163   1043   in 1916   576   in 2012  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   39.9   32.0   33.8   +6.1   41.9   in 2012   24.3   in 1960  
Avg Minimum Dew Point   23.8   18.4   19.2   +4.5   27.6   in 2012   11.2   in 1960  
Average  Dew Point   31.9   25.2   26.5   +5.3   34.8   in 2012   17.7   in 1960  
    March 29, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   10.76   12.36   12.04   -1.28   19.47   in 1979   5.98   in 2012  
Total Snow (since Jul 1 18)   12.9   21.1   30.6   -17.7   78.0   in 2005   5.0   in 1998  
Total HDD (since Jul 1 18)   4178   4710   4731   -553   5652   in 1918   3817   in 2012  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
Hour-by-Hour Weather For March 29, 2020  
Climate Weather for March 29  
Weather History For March 29  
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