Portsmouth Rhode Island Weather Almanac  
Monday, February 20, 2023  
Cloudy, Light Rain & Fog early then Partly Cloudy and Much Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    February 20, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   56   35   40   +16   60   in 1930   20   in 2015  
Minimum Temperature   44   17   26   +18   44   in 2023   2   in 1950  
Average Temperature   50   26   33   +17   50   in 2023   12   in 2015  
 Month Avg Max Temperature   46.3   42.0   38.8   +7.6   46.3   in 2023   23.0   in 1979  
Month Avg Min Temperature   27.9   24.6   24.5   +3.4   30.4   in 2020   7.8   in 1979  
Month Average Temperature   37.4   33.5   32.1   +5.3   37.4   in 2023   15.6   in 1979  
High Heat Index                                      
Low Wind Chill   42   4   14   +28             -24   in 1950  
Heating Degree Days   15   39   32   -17   53   in 2015   15   in 2023  
Month HDD   553   630   659   -106   989   in 1979   553   in 2023  
Season HDD   3047   3327   3578   -531   4535   in 1918   2952   in 2016  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   49   26   31   +18   53   in 1974   -7   in 1959  
Minimum Dew Point   32   2   15   +17   43   in 2018   -21   in 1950  
Average  Dew Point   41   14   23   +18   46   in 2018   -10   in 1959  
 Month Avg Max Dew Point   37.0   36.3   29.6   +7.4   39.6   in 2018   4.5   in 1979  
Month Avg Min Dew Point   17.2   16.0   13.1   +4.1   23.0   in 1984   -8.0   in 1979  
Month Average Dew Point   27.3   26.1   23.0   +4.3   29.9   in 2018   -1.8   in 1979  
Precipitation   .08   .00   .13   -.05   2.07   in 1924            
One Hour   .05   .00           .26   in 1988            
Hourly Rate   .19   .00           .26   in 2014            
Month Precipitation   .56   3.95   2.39   -1.83   6.48   in 1988   .25   in 1947  
Year Precipitation   7.75   5.91   6.06   +1.69   12.38   in 1979   2.33   in 1980  
Snow   0.0   0.0   0.4   -0.4   8.8   in 1921       in    
Snow Depth   0   T           23   in 2015       in    
Month Snow   T   7.5   7.2   -7.2   26.4   in 2003   0.0   in 2020  
Season Snow   2.3   32.2   24.3   -22.0   61.1   in 1996   2.3   in 2023  
    February 20, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   72%   82%   +17%   100%   in 2018   40%   in 1965  
Minimum Humidity   59%   28%   49%   +10%   97%   in 2018   19%   in 1990  
Average Humidity   79%   50%   66%   +13%   99%   in 2018   33%   in 1990  
Maximum Barometer   30.00   30.45   30.13   -00.13   30.63   in 2019   29.46   in 1964  
Minimum Barometer   29.59   30.14   29.76   -00.17   30.33   in 2020   28.82   in 1934  
Average Barometer   29.80   30.30   29.95   -00.15   30.41   in 2019   29.26   in 1972  
Average Wind   6.0   11.4   8.8   -2.8   22.4   in 1972   2.3   in 1980  
Direction   SSW   NW   NW       NW SSE
High Wind Gust   20   35   27   -7   61   in 1927   12   in 1980  
Direction   WSW   WNW   NW       NE SSE
Maximum Water Temp   44.2   39.0   38.3   +5.9   44.2   in 2023   32.1   in 2015  
Minimum Water Temp   42.6   37.6   36.7   +5.9   42.6   in 2023   31.8   in 2015  
Average Water Temp   43.4   38.3   37.5   +5.9   43.4   in 2023   32.0   in 2015  
Sunrise/ AM Twilight   6:33:32 AM   6:03:31 AM            
Sunset / PM Twilight   5:24:34 PM   5:54:06 PM            
Length Of Day   10:51:02                          
Special Conditions   Dense Fog                              
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Hour-by-Hour Weather For February 20, 2023            
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