Portsmouth Rhode Island Weather Almanac  
Wednesday, January 31, 2024  
Cloudy, Very Light Winds, Continued Cold  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    January 31, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   34   42   37   -3   56   in 1988   16   in 1935  
Minimum Temperature   24   27   23   +1   40   in 2016   -5   in 1920  
Average Temperature   29   35   30   -1   48   in 1947   8   in 1935  
 Month Avg Max Temperature   38.5   44.8   38.0   +0.6   45.7   in 1913   27.7   in 2004  
Month Avg Min Temperature   27.2   33.0   24.1   +3.1   33.0   in 2023   13.1   in 1982  
Month Average Temperature   33.1   39.2   31.1   +1.9   39.2   in 2023   21.6   in 2004  
High Heat Index                   #N/A   in #N/A            
Low Wind Chill   18   19   10   +8             -19   in 1920  
Heating Degree Days   36   30   34   +2   57   in 1935   17   in 1947  
Month Heating DD   990   801   1049   -59   1346   in 2004   801   in 2023  
Season Heating DD   2667   2478   2919   -252   3770   in 1918   2291   in 2016  
Cooling Degree Days   0   0   0   +0       in     0   in Many  
Month Cooling DD   0   0   0   +0   3   in 2022   0   in Many  
Year Cooling DD   726   784   609   +117   871   in 2020   290   in 1902  
Maximum Dew Point   29   41   27   +2   54   in 2013   -5   in 1980  
Minimum Dew Point   20   14   11   +9   34   in 2016   -15   in 1962  
Average  Dew Point   25   28   19   +6   38   in 2016   -9   in 1980  
 Month Avg Max Dew Point   32.6   39.6   29.9   +2.7   39.6   in 2023   14.8   in 1981  
Month Avg Min Dew Point   20.4   27.7   13.8   +6.6   27.7   in 2023   -1.4   in 1981  
Month Average Dew Point   26.7   33.9   21.9   +4.8   33.9   in 2023   6.7   in 1981  
Precipitation   .00   .11   .11   -.11   1.32   in 1984            
One Hour Rain   .00   .04           .27   in 2013            
Half Hour Rain   .00   .02           .17   in 2013            
Hourly Rain Rate   .00   .00           6.78   in 2013            
Month Precipitation   6.75   7.19   3.67   +3.08   12.04   in 1979   .78   in 1955  
Year Precipitation   6.75   7.19   3.67   +3.08   12.04   in 1979   .78   in 1955  
Snow   0.0   T   0.3   -0.3   10.3   in 1898            
Snow Depth   0   0   2   -2   23   in 2005            
Month Snow   6.5   0.8   10.0   -3.5   33.8   in 2005   0.1   in 1934  
Season Snow   6.6   2.3   17.1   -10.5   46.0   in 2005   0.8   in 2007  
    January 31, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   82%   97%   81%   +1%   100%   in 2006   42%   in 1980  
Minimum Humidity   77%   54%   49%   +28%   85%   in 2006   21%   in 1981  
Average Humidity   80%   76%   65%   +15%   93%   in 2006   32%   in 1981  
Maximum Barometer   30.22   30.25   30.16   +00.06   30.86   in 1999   29.50   in 1979  
Minimum Barometer   30.06   30.04   29.84   +00.22   30.64   in 1999   28.93   in 1966  
Average Barometer   30.14   30.15   30.00   +00.14   30.75   in 1999   29.23   in 1966  
Average Wind   3.2   6.3   8.5   -5.3   22.4   in 1966   2.2   in 2022  
Direction   W   N   NW       W NW
High Wind Gust   11   16   26   -15   55   in 1966   8   in 2022  
Direction   ENE   NNE   NNW       WSW NNW
Maximum Water Temp   41.5   43.3   38.7   +2.8   44.8   in 2007   32.3   in 2004  
Minimum Water Temp   40.8   41.4   36.7   +4.1   42.4   in 2013   29,8   in 2004  
Average Water Temp   41.2   42.4   37.5   +3.6   42.5   in 2012   31.1   in 2004  
Sunrise/ AM Twilight   6:58:13 AM   6:28:13 AM            
Sunset / PM Twilight   4:59:25 PM   5:29:10 PM            
Length Of Day   16:59:06                          
Special Conditions   None                              
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