Portsmouth Rhode Island Weather Almanac  
Tuesday, January 2, 2024  
Clear, Dry and Colder  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    January 2, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   38   46   40   -2   55   in 2000   12   in 1918  
Minimum Temperature   24   35   26   -2   50   in 1979   -3   in 1918  
Average Temperature   31   41   33   -2   53   in 1979   5   in 1918  
 Month Avg Max Temperature   40.5   50.0   40.0   +0.5   54.5   in 1966   12.0   in 1918  
Month Avg Min Temperature   26.5   37.0   26.5   +0.0   46.5   in 1979   -2.5   in 1918  
Month Average Temperature   33.5   44.0   33.5   +0.0   50.5   in 1979   5.0   in 1918  
High Heat Index                   #N/A   in #N/A            
Low Wind Chill   17   34   15   +2             -16   in 1999  
Heating Degree Days   34   24   32   +2   60   in 1918   12   in 1979  
Month Heating DD   63   42   63   +0   120   in 1918   29   in 1979  
Season Heating DD   1740   1735   1933   -193   2567   in 1918   1379   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   26   39   33   -7   54   in 2000   3   in 1999  
Minimum Dew Point   20   31   17   +3   50   in 1979   -14   in 1968  
Average  Dew Point   23   35   25   -2   52   in 1979   -5   in 1999  
 Month Avg Max Dew Point   29.0   45.0   33.0   -4.0   52.0   in 2022   6.0   in 2018  
Month Avg Min Dew Point   23.0   32.0   17.0   +6.0   46.5   in 1979   -13.0   in 1999  
Month Average Dew Point   26.0   38.5   25.0   +1.0   49.3   in 1979   -1.8   in 1999  
Precipitation   .00   .00   .12   -.12   1.32   in 1893            
One Hour Rain   .00   .00           .27   in 1979            
Half Hour Rain   .00   .00           .08   in 2011            
Hourly Rain Rate   .00   .00           .34   in 2021            
Month Precipitation   .00   .14   .24   -.24   2.23   in 1919   .00   in 2024  
Year Precipitation   .00   .14   .24   -.24   2.23   in 1919   .00   in 2024  
Snow   0.0   0.0   0.3   -0.3   10.4   in 1948            
Snow Depth   0   0   1   -1   12   in 1948            
Month Snow   0.0   0.0   0.6   -0.6   10.8   in 1948   0.0   in 2024  
Season Snow   0.1   1.5   7.7   -7.6   27.3   in 1948   T   in 2000  
    January 2, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   92%   90%   85%   +7%   100%   in 2011   55%   in 1999  
Minimum Humidity   53%   71%   55%   -2%   93%   in 1979   30%   in 1982  
Average Humidity   73%   81%   70%   +2%   97%   in 1979   46%   in 1999  
Maximum Barometer   30.07   30.18   30.18   -00.11   30.89   in 1899   29.66   in 2010  
Minimum Barometer   29.94   30.00   29.84   +00.10   30.42   in 2005   28.98   in 1987  
Average Barometer   30.01   30.09   30.01   -00.01   30.57   in 2005   29.42   in 1987  
Average Wind   5.1   3.1   7.9   -2.8   17.0   in 2003   2.1   in 2006  
Direction   NNW   WNW   NW       N ESE
High Wind Gust   15   14   26   -11   52   in 1935   10   in 1950  
Direction   N   NW   NW       NW N
Maximum Water Temp   45.9   44.8   42.8   +3.1   50.5   in 2007   35.9   in 2018  
Minimum Water Temp   44.4   42.4   40.6   +3.8   49.1   in 2007   32.6   in 2018  
Average Water Temp   45.2   43.6   41.7   +3.4   49.8   in 2007   34.3   in 2018  
Sunrise/ AM Twilight   7:11:45 AM   6:40:35 AM            
Sunset / PM Twilight   4:26:31 PM   4:58:09 PM            
Length Of Day   16:26:18                          
Special Conditions   None                              
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