Portsmouth Rhode Island Weather Almanac
Wednesday, February 10, 2021
Partly Cloudy early, Clear day to Mostly Cloudy PM and Cold
Climate Normal Period Climate Record Period  
1991- 2020   1893 - 2021  
    February 10, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Temperature   32   46   39   -7   57   in 1909   9   in 1899  
Minimum Temperature   22   41   24   -2   41   in 2020   0   in 1979  
Average Temperature   27   44   32   -5   47   in 1925   6   in 1899  
 Month Avg Max Temperature   36.6   44.3   38.0   -1.4   48.5   in 1991   23.0   in 1934  
Month Avg Min Temperature   25.9   32.4   23.8   +2.1   32.4   in 2020   7.2   in 1934  
Month Average Temperature   31.3   38.4   31.4   -0.1   39.6   in 1991   15.1   in 1934  
Precipitation   .00   .14   .12   -.12   1.58   in 1893            
One Hour   .00   .03           .30   in 1959            
Hourly Rate   .00   .08           .50   in 2005            
Month Precipitation   1.26   1.42   1.16   +.10   4.13   in 1970   T   in 1944  
Year Precipitation   3.22   3.46   4.83   -1.61   12.38   in 1979   1.59   in 1980  
Snow   0.0   0.0   0.4   -0.4   5.2   in 2010            
Month Snow   10.3   0.0   3.2   +7.1   26.3   in 1978   0.0   in 2020  
Season Snow   22.0   12.2   20.3   +1.7   51.0   in 1996   2.4   in 1944  
Snow Depth   4   0           26   in 1978            
HDD   38   21   33   +5   59   in 1899   18   in 1925  
Month HDD   335   262   336   -1   497   in 1934   252   in 1991  
Season HDD   2996   3027   3255   -259   4219   in 1918   2571   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   24   42   30   -6   53   in 1990   -2   in 1979  
Minimum Dew Point   13   36   13   +0   36   in 2020   -15   in 1979  
Average  Dew Point   19   39   22   -3   40   in 2018   -9   in 1979  
 Month Avg Max Dew Point   31.0   38.0   28.8   +2.2   40.1   in 2008   10.2   in 1980  
Month Avg Min Dew Point   18.8   25.9   12.3   +6.5   25.9   in 2020   -2.5   in 1980  
Month Average Dew Point   24.9   32.0   22.0   +2.9   33.0   in 2008   3.9   in 1980  
    February 10, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   87%   95%   83%   +4%   100%   in 2005   52%   in 1983  
Minimum Humidity   46%   81%   50%   -4%   88%   in 1970   23%   in 1992  
Average Humidity   67%   88%   66%   +0%   94%   in 1970   39%   in 1983  
Maximum Barometer   30.30   30.40   30.15   +00.15   30.86   in 1951   29.46   in 1954  
Minimum Barometer   30.17   30.05   29.81   +00.36   30.57   in 1951   28.93   in 1969  
Average Barometer   30.24   30.23   29.98   +00.25   30.72   in 1951   29.23   in 1969  
Average Wind   6.0   8.8   7.8   -1.8   21.7   in 1969   2.8   in 1956  
Direction   NW   SSW   WNW       NNW         NNE        
High Wind Gust   19   26   25   -6   53   in 1969   12   in 1956  
Direction   NW   SSW   WNW       N         NW        
High Heat Index                                      
Wind Chill   12   34   11   +1             -23   in 1979  
Maximum Water Temp   38.8   37.3   38.0   +0.8   43.9   in 2012   34.7   in 2019  
Minimum Water Temp   37.4   36.2   36.0   +1.4   42.8   in 2012   32.5   in 2007  
Average Water Temp   38.1   36.8   37.0   +1.1   43.4   in 2012   33.7   in 2019  
Sunrise/ AM Twilight   6:45:09 AM   6:16:37 AM            
Sunset / PM Twilight   5:13:44 PM   5:42:17 PM            
Length Of Day   10:28:35                          
Special Conditions   None                              
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