Portsmouth Rhode Island Weather Almanac
Friday, February 19, 2021
Cloudy, Light Snow and Fog entire Day, Cold
Climate Normal Period Climate Record Period  
1991- 2020   1893 - 2021  
    February 19, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Temperature   32   47   40   -8   62   in 2017   14   in 1903  
Minimum Temperature   27   30   26   +1   43   in 2017   4   in 1923  
Average Temperature   30   39   33   -3   53   in 2017   10   in 1903  
 Month Avg Max Temperature   35.8   43.7   38.7   -2.8   44.6   in 1990   22.3   in 1979  
Month Avg Min Temperature   25.4   30.7   24.4   +0.9   30.7   in 2020   7.5   in 1979  
Month Average Temperature   30.6   37.2   32.0   -1.4   37.2   in 2020   14.9   in 1979  
Precipitation   .14   .00   .13   +.01   2.04   in 1972            
One Hour   .00   .00           .49   in 1972            
Hourly Rate   .00   .00           .77   in 2013            
Month Precipitation   2.16   2.75   2.26   -.10   5.93   in 1988   .07   in 1912  
Year Precipitation   4.12   4.79   5.93   -1.81   12.38   in 1979   2.33   in 1980  
Snow   1.3   0.0   0.4   +0.9   6.3   in 1914            
Month Snow   16.0   0.0   6.8   +9.2   26.4   in 2003   0.0   in 2020  
Season Snow   27.7   12.2   23.9   +3.8   61.1   in 1996   3.5   in 1989  
Snow Depth   4   0           24   in 2015            
HDD   35   26   32   +3   55   in 1903   12   in 2017  
Month HDD   649   521   627   +22   948   in 1979   521   in 2020  
Season HDD   3310   3286   3546   -236   4504   in 1918   2930   in 2016  
CDD   0   0   0   +0   0   in   0   in    
Month CDD   0   0   0   +0   0   in     0   in    
Year CDD   0   0   0   +0   0   in     0   in    
Maximum Dew Point   31   40   31   +0   46   in 2018   6   in 2007  
Minimum Dew Point   26   13   15   +11   39   in 1992   -12   in 2007  
Average  Dew Point   29   27   23   +6   41   in 1992   -3   in 2007  
 Month Avg Max Dew Point   29.8   36.9   29.5   +0.3   39.1   in 2018   3.5   in 1979  
Month Avg Min Dew Point   16.3   22.1   13.0   +3.3   22.7   in 1984   -8.6   in 1979  
Month Average Dew Point   23.1   29.5   23.0   +0.1   29.5   in 2020   -2.6   in 1979  
    February 19, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   97%   96%   84%   +13%   100%   in 2000   49%   in 1987  
Minimum Humidity   88%   34%   52%   +36%   93%   in 1991   21%   in 2007  
Average Humidity   93%   65%   68%   +25%   97%   in 1991   39%   in 2007  
Maximum Barometer   30.26   30.34   30.11   +00.15   30.66   in 1905   29.41   in 1960  
Minimum Barometer   29.94   29.94   29.76   +00.18   30.35   in 2018   28.67   in 1972  
Average Barometer   30.10   30.14   29.94   +00.16   30.47   in 2018   29.15   in 1960  
Average Wind   8.1   12.6   8.7   -0.6   21.8   in 1959   2.1   in 1995  
Direction   NE   WNW   WNW       WNW         SSE        
High Wind Gust   21   33   27   -6   56   in 2011   10   in 1967  
Direction   NNE   WNW   WNW       W         ENE        
High Heat Index                                      
Wind Chill   19   18   14   +5             -12   in 1965  
Maximum Water Temp   37.2   36.9   37.9   -0.7   43.8   in 2012   32.7   in 2015  
Minimum Water Temp   36.3   35.4   35.9   +0.4   41.9   in 2012   31.3   in 2007  
Average Water Temp   36.8   36.2   36.9   -0.2   42.9   in 2012   32.4   in 2015  
Sunrise/ AM Twilight   6:32:58 AM   6:04:55 AM            
Sunset / PM Twilight   5:24:53 PM   5:52:56 PM            
Length Of Day   10:51:55                          
Special Conditions   Fog                                  
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