Portsmouth Rhode Island Weather Almanac
Sunday, March 15, 2020
Cloudy early then Clear and Dry, Breezy and Cooler
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    March 15, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   51   54   46   +5   62   in 1990   25   in 1932  
Minimum Temperature   32   44   30   +2   47   in 1913   10   in 1993  
Average Temperature   42   49   38   +4   54   in 1913   18   in 1993  
Precipitation   .00   .08   .17   -.17   3.00   in 1912        
One Hour   .00   .05           .39   in 1978            
Snow   0.0   0.0   0.2   -0.2   8.1   in 1999            
Snow Depth   0   0           12   in 1939            
HDD   23   16   27   -4   47   in 1993   11   in 1913  
CDD   0   0   0   +0   0   in              
Maximum Dew Point   28   50   34   -6   52   in 2002   9   in 1993  
Minimum Dew Point   9   41   19   -10   42   in 2016   -10   in 1993  
Average  Dew Point   19   46   26   -7   46   in 2019   -1   in 1993  
Maximum Humidity   78%   97%   86%   -8%   100%   in 2002   47%   in 1974  
Minimum Humidity   19%   84%   52%   -33%   95%   in 2016   19%   in 2020  
Average Humidity   49%   91%   69%   -21%   97%   in 2016   40%   in 1982  
Maximum Barometer   30.53   30.13   30.05   +00.48   30.73   in 1968   29.41   in 1958  
Minimum Barometer   30.31   29.68   29.72   +00.59   30.52   in 1968   29.18   in 1958  
Average Barometer   30.42   29.91   29.89   +00.53   30.63   in 1968   29.30   in 1958  
Average Wind   9.3   12.5   9.3   -0.0   17.3   in 1980   1.8   in 1995  
Direction   N   S   WNW       WNW         ESE        
High Wind Gust   21   27   29   -8   48   in 1980   9   in 1995  
Direction   NW   S   WNW       W         SSW        
Wind Chill   27   38   21   +6             -8   in 1993  
Maximum Water Temp   40.3   39.0   40.3   -0.0   46.2   in 2012   36.4   in 2015  
Minimum Water Temp   38.5   37.2   38.3   +0.2   45.0   in 2012   34.2   in 2003  
Average Water Temp   39.4   38.1   39.3   +0.1   45.6   in 2012   35.4   in 2015  
Sunrise/ AM Twilight   6:54:32 AM   6:27:01 AM            
Sunset / PM Twilight   6:53:01 PM   7:20:32 PM            
Length Of Day   11:58:29                          
Special Conditions   None                                  
Comments      
    March 15, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   52.1   39.9   43.9   +8.2   52.1   in 2020   33.0   in 1916  
Avg Minimum Temperature   35.4   26.9   28.5   +6.9   37.1   in 1973   19.5   in 1950  
Average Temperature   43.7   33.4   35.9   +7.8   44.3   in 1973   27.2   in 1916  
Total Precipitation   .80   2.49   2.46   -1.66   5.49   in 1983   .04   in 1915  
Total Snow   0.6   9.6   3.1   -2.5   18.9   in 1941   0.0   in 2011  
Total HDD   316   470   432   -116   564   in 1916   306   in 1973  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   38.5   30.5   32.2   +6.4   40.9   in 1973   18.9   in 1960  
Avg Minimum Dew Point   23.0   17.3   17.1   +5.9   29.6   in 1973   3.7   in 1980  
Average  Dew Point   30.8   23.9   24.6   +6.1   35.3   in 1973   13.4   in 1960  
    March 15, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   6.61   11.60   9.66   -3.05   19.20   in 1979   4.43   in 1980  
Total Snow (since Jul 1 18)   12.8   20.9   28.8   -16.0   75.0   in 2005   4.7   in 1998  
Total HDD (since Jul 1 18)   3877   4358   4383   -506   5309   in 1905   3514   in 2016  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
Hour-by-Hour Weather For March 15, 2020  
Climate Weather for March 15  
Weather History For March 15  
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