Portsmouth Rhode Island Weather Almanac  
Wednesday, February 1, 2023  
Cloudy & Light Snow early then Clear and Colder  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    February 1, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   33   35   37   -4   57   in 2012   14   in 1971  
Minimum Temperature   21   18   23   -2   43   in 2016   -5   in 1920  
Average Temperature   27   27   31   -4   49   in 2016   8   in 1920  
 Month Avg Max Temperature   33.0   35.0   37.0   -4.0   57.0   in 2012   14.0   in 1971  
Month Avg Min Temperature   21.0   18.0   23.0   -2.0   43.0   in 2016   -5.0   in 1920  
Month Average Temperature   27.0   27.0   31.0   -4.0   49.0   in 2016   8.0   in 1920  
High Heat Index                                      
Low Wind Chill   13   10   9   +4             -22   in 1920  
Heating Degree Days   38   38   34   +4   57   in 1920   16   in 2016  
Month HDD   38   38   34   +4   57   in 1920   16   in 2016  
Season HDD   2532   2735   2953   -421   3820   in 1918   2307   in 2016  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   20   26   27   -7   56   in 1951   -5   in 1971  
Minimum Dew Point   10   7   11   -1   36   in 2012   -21   in 1961  
Average  Dew Point   15   17   19   -4   42   in 1988   -10   in 1961  
 Month Avg Max Dew Point   20.0   26.0   27.0   -7.0   56.0   in 1951   -5.0   in 1971  
Month Avg Min Dew Point   10.0   7.0   11.0   -1.0   36.0   in 2012   -21.0   in 1961  
Month Average Dew Point   15.0   17.0   19.0   -4.0   41.5   in 1988   -9.5   in 1961  
Precipitation   T   .00   .11   +.00   1.92   in 1915            
One Hour   .00   .00           .63   in 1982            
Hourly Rate   .00   .00           1.15   in 2008            
Month Precipitation   T   .00   .11   -.11   1.92   in 1915   .00   in 2022  
Year Precipitation   7.19   1.96   3.78   +3.41   12.07   in 1979   .93   in 1955  
Snow   T   0.0   0.3   -0.3   10.9   in 1898       in    
Snow Depth   0   17           22   in 2005       in    
Month Snow   T   0.0   0.3   -0.3   10.9   in 1898   0.0   in 2022  
Season Snow   2.3   24.7   17.4   -15.1   46.0   in 2005   0.8   in 2007  
    February 1, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   81%   87%   82%   -1%   100%   in 2003   45%   in 1980  
Minimum Humidity   45%   58%   53%   -8%   94%   in 1951   18%   in 1991  
Average Humidity   63%   73%   67%   -4%   97%   in 1951   38%   in 1991  
Maximum Barometer   30.27   30.57   30.20   +00.07   30.86   in 1973   29.40   in 1979  
Minimum Barometer   30.18   30.48   29.86   +00.32   30.48   in 2022   29.13   in 1958  
Average Barometer   30.23   30.53   30.03   +00.19   30.66   in 1973   29.27   in 1979  
Average Wind   5.9   5.1   7.7   -1.8   18.2   in 1953   1.9   in 2005  
Direction   NNW   N   NNW       WNW NNW
High Wind Gust   20   14   26   -6   52   in 1953   8   in 2005  
Direction   N   N   NW       NNW NW
Maximum Water Temp   41.7   40.1   38.5   +3.2   44.4   in 2012   31.8   in 2019  
Minimum Water Temp   39.9   37.2   36.5   +3.4   42.9   in 2012   29.1   in 2019  
Average Water Temp   40.8   38.7   37.5   +3.3   43.7   in 2012   30.5   in 2019  
Sunrise/ AM Twilight   6:57:00 AM   6:26:24 AM            
Sunset / PM Twilight   5:00:41 PM   5:31:30 PM            
Length Of Day   10:03:41                          
Special Conditions   None                              
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