Portsmouth Rhode Island Weather Almanac
Friday, February 21, 2020
Clear, Breezy and Much Colder
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    February 21, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   31   48   40   -9   60   in 1930   18   in 1918  
Minimum Temperature   16   29   26   -10   45   in 2018   -2   in 1950  
Average Temperature   24   39   33   -9   50   in 2018   9   in 1950  
Precipitation   .00   .37   .13   -.13   3.20   in 1898        
One Hour   .00   .10           .39   in 1989            
Snow   0.0   T   0.3   -0.3   12.2   in 1902            
Snow Depth   0   0           23   in 2015            
HDD   41   26   32   +9   56   in 1950   15   in 2018  
CDD   0   0   0   +0   0   in              
Maximum Dew Point   12   37   30   -18   54   in 1989   -7   in 1968  
Minimum Dew Point   -2   27   14   -16   44   in 2018   -22   in 1950  
Average  Dew Point   5   32   22   -17   48   in 2018   -12   in 1968  
Maximum Humidity   57%   97%   84%   -27%   100%   in 2018   47%   in 1968  
Minimum Humidity   25%   58%   52%   -27%   94%   in 1996   24%   in 1950  
Average Humidity   41%   78%   68%   -27%   97%   in 1996   37%   in 1968  
Maximum Barometer   30.46   30.18   30.14   +00.32   30.67   in 1985   29.66   in 1977  
Minimum Barometer   30.29   29.82   29.80   +00.49   30.30   in 1990   29.18   in 1967  
Average Barometer   30.38   30.00   29.98   +00.40   30.46   in 1990   29.46   in 1967  
Average Wind   8.5   9.6   8.2   +0.3   21.9   in 1953   1.8   in 1994  
Direction   N   WNW   WNW       SSW         SSW        
High Wind Gust   24   26   28   -4   64   in 1953   12   in 1994  
Direction   N   SE   WNW       SSW         SSW        
Wind Chill   1   22   15   -14             -26   in 1950  
Maximum Water Temp   36.1   37.0   38.3   -2.2   43.0   in 2012   32.0   in 2015  
Minimum Water Temp   34.7   34.3   36.8   -2.1   41.3   in 2012   31.6   in 2015  
Average Water Temp   35.4   35.7   37.6   -2.2   42.2   in 2012   31.8   in 2015  
Sunrise/ AM Twilight   6:31:10 AM   6:03:11 AM            
Sunset / PM Twilight   5:26:24 PM   5:54:23 PM            
Length Of Day   10:55:53                          
Special Conditions   None                                  
Comments      
    February 21, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   42.7   40.4   38.8   +3.9   44.4   in 1990   23.9   in 1979  
Avg Minimum Temperature   29.7   27.0   24.0   +5.7   30.2   in 1960   8.6   in 1979  
Average Temperature   36.2   33.7   31.6   +4.5   36.6   in 1984   16.2   in 1979  
Total Precipitation   2.75   2.65   2.60   +.15   6.48   in 1988   .31   in 1912  
Total Snow   0.0   3.8   6.3   -6.3   26.4   in 2003   0.0   in 2020  
Total HDD   597   651   702   -105   1020   in 1979   590   in 2018  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   34.6   31.1   27.8   +6.9   40.2   in 2018   6.2   in 1979  
Avg Minimum Dew Point   20.2   15.9   11.6   +8.5   23.0   in 1984   -6.6   in 1979  
Average  Dew Point   27.4   23.5   19.7   +7.7   30.7   in 2018   -0.2   in 1979  
    February 21, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   4.79   8.21   6.29   -1.50   12.74   in 1979   2.33   in 1980  
Total Snow (since Jul 1 19)   12.2   9.1   23.3   -11.1   61.1   in 1996   3.5   in 1989  
Total HDD (since Jul 1 19)   3362   3655   3730   -368   4587   in 1918   2970   in 2016  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
Hour-by-Hour Weather For February 21, 2020  
Climate Weather for February 21  
Weather History For February 21  
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