Portsmouth Rhode Island Weather Almanac
Tuesday, February 11, 2020
Cloudy, Rainy, Foggy and Continued Very Warm
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    February 10, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   46   37   39   +7   58   in 2009   10   in 1979  
Minimum Temperature   41   27   24   +17   44   in 2018   -4   in 1979  
Average Temperature   44   32   32   +12   49   in 2009   3   in 1979  
Precipitation   .14   .00   .12   +.02   1.98   in 1955        
One Hour   .03   .00           .35   in 1955            
Snow   0.0   0.0   0.3   -0.3   12.8   in 1994            
Snow Depth   0   0           26   in 1978            
HDD   21   33   33   -12   62   in 1979   16   in 2009  
CDD   0   0   0   +0   0   in              
Maximum Dew Point   42   18   28   +14   51   in 2018   -14   in 1979  
Minimum Dew Point   36   4   12   +25   43   in 2018   -23   in 1979  
Average  Dew Point   39   11   32   +7   47   in 2018   -19   in 1979  
Maximum Humidity   95%   63%   83%   +12%   100%   in 2018   45%   in 1991  
Minimum Humidity   81%   36%   52%   +29%   96%   in 2018   24%   in 1962  
Average Humidity   88%   50%   67%   +21%   98%   in 2018   38%   in 1991  
Maximum Barometer   30.40   30.42   30.12   +00.28   30.94   in 1906   29.39   in 1970  
Minimum Barometer   30.05   30.28   29.77   +00.28   30.28   in 2019   28.98   in 1970  
Average Barometer   30.23   30.35   29.95   +00.27   30.47   in 1988   29.19   in 1970  
Average Wind   8.8   5.5   8.6   +0.2   22.3   in 1973   2.3   in 1985  
Direction   SSW   N   N       NNE         N        
High Wind Gust   26   17   27   -1   58   in 1955   12   in 1985  
Direction   SSW   NNE   N       SSE         S        
Wind Chill   34   19   12   +22             -26   in 1979  
Maximum Water Temp   37.3   36.1   38.0   -0.7   44.0   in 2012   34.6   in 2015  
Minimum Water Temp   36.2   33.4   36.0   +0.2   42.8   in 2012   33.4   in 2019  
Average Water Temp   36.8   34.8   37.0   -0.3   43.4   in 2012   34.1   in 2015  
Sunrise/ AM Twilight   6:44:51 AM   6:16:20 AM            
Sunset / PM Twilight   5:14:03 PM   5:42:34 PM            
Length Of Day   10:29:48                          
Special Conditions   Fog                                  
Comments      
    February 10, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   44.4   40.8   37.9   +6.4   47.5   in 1991   23.8   in 1934  
Avg Minimum Temperature   33.1   27.6   22.9   +9.5   33.1   in 2020   8.0   in 1934  
Average Temperature   38.7   34.2   30.9   +7.4   38.7   in 2020   15.9   in 1934  
Total Precipitation   1.87   .45   1.30   +.12   4.98   in 1970   T   in 1912  
Total Snow   0.0   0.0   3.3   -3.3   26.3   in 1978   0.0   in 2020  
Total HDD   284   334   374   -112   538   in 1934   284   in 2020  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   38.5   29.5   26.8   +11.2   38.5   in 2020   8.6   in 1979  
Avg Minimum Dew Point   26.7   16.3   10.7   +15.2   26.7   in 2020   -3.5   in 1979  
Average  Dew Point   32.6   22.9   18.8   +13.2   32.6   in 2020   2.6   in 1979  
    February 10, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   3.91   6.01   4.99   -1.53   12.38   in 1979   1.59   in 1980  
Total Snow (since Jul 1 19)   12.2   5.3   20.3   -8.1   51.0   in 1996   2.8   in 1980  
Total HDD (since Jul 1 19)   3049   3338   3402   -375   4255   in 1918   2613   in 2016  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
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Portsmouth Rhode Island Weather Almanac
Monday, February 10, 2020
Cloudy, Light Rain and Foggy, Very Warm
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    February 10, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   46   35   39   +7   57   in 1909   9   in 1899  
Minimum Temperature   41   22   24   +17   41   in 2020   0   in 1979  
Average Temperature   44   29   32   +12   47   in 1925   6   in 1899  
Precipitation   .14   .00   .12   +.02   1.58   in 1893        
One Hour   .03   .00           .30   in 1959            
Snow   0.0   0.0   0.3   -0.3   5.2   in 2010            
Snow Depth   0   0           26   in 1978            
HDD   21   36   33   -12   59   in 1899   18   in 1925  
CDD   0   0   0   +0   0   in              
Maximum Dew Point   42   19   28   +15   53   in 1990   -2   in 1979  
Minimum Dew Point   36   9   11   +25   36   in 2020   -15   in 1979  
Average  Dew Point   39   14   19   +20   40   in 2018   -9   in 1979  
Maximum Humidity   95%   69%   82%   +13%   100%   in 2005   52%   in 1983  
Minimum Humidity   81%   39%   50%   +31%   88%   in 1970   23%   in 1992  
Average Humidity   88%   54%   66%   +22%   94%   in 1970   39%   in 1983  
Maximum Barometer   30.40   30.66   30.15   +00.25   30.86   in 1951   29.46   in 1954  
Minimum Barometer   30.05   30.38   29.80   +00.25   30.57   in 1951   28.93   in 1969  
Average Barometer   30.23   30.52   29.98   +00.25   30.72   in 1951   29.23   in 1969  
Average Wind   8.8   8.0   7.9   +0.9   21.7   in 1969   2.8   in 1956  
Direction   SSW   W   WNW       NNW         NNE        
High Wind Gust   26   22   25   +1   53   in 1969   12   in 1956  
Direction   SSW   NW   WNW       N         NW        
Wind Chill   34   11   11   +23             -23   in 1979  
Maximum Water Temp   37.3   34.7   38.0   -0.7   43.9   in 2012   34.7   in 2019  
Minimum Water Temp   36.2   32.7   35.9   +0.3   42.8   in 2012   32.5   in 2007  
Average Water Temp   36.8   33.7   37.0   -0.2   43.4   in 2012   33.7   in 2019  
Sunrise/ AM Twilight   6:46:06 AM   6:17:31 AM            
Sunset / PM Twilight   5:12:47 PM   5:41:22 PM            
Length Of Day   10:27:18                          
Special Conditions   Fog                                  
Comments      
    February 10, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   44.3   41.2   37.8   +6.5   48.5   in 1991   23.0   in 1934  
Avg Minimum Temperature   32.4   27.7   22.8   +9.6   32.4   in 2020   7.2   in 1934  
Average Temperature   38.4   34.5   30.8   +7.6   39.6   in 1991   15.1   in 1934  
Total Precipitation   1.42   .45   1.18   +.24   4.13   in 1970   T   in 1944  
Total Snow   0.0   0.0   3.0   -3.0   26.3   in 1978   0.0   in 2020  
Total HDD   262   301   341   -79   497   in 1934   252   in 1991  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   38.0   30.7   26.7   +11.3   40.1   in 2008   10.2   in 1980  
Avg Minimum Dew Point   25.9   17.5   10.6   +15.3   25.9   in 2020   -2.5   in 1980  
Average  Dew Point   32.0   24.1   18.7   +13.3   33.0   in 2008   3.9   in 1980  
    February 10, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   3.46   6.01   4.87   -1.41   12.38   in 1979   1.59   in 1980  
Total Snow (since Jul 1 19)   12.2   5.3   20.0   -7.8   51.0   in 1996   2.4   in 1944  
Total HDD (since Jul 1 19)   3027   3305   3369   -342   4219   in 1918   2571   in 2016  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
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