Portsmouth Rhode Island Weather Almanac  
Thursday, January 4, 2024  
Cloudy early, Partly Cloudy Day, Dry, Windy, Seasonal Temps  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    January 4, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   43   49   40   +3   59   in 2000   9   in 1904  
Minimum Temperature   27   42   26   +1   51   in 1950   -4   in 1981  
Average Temperature   35   46   33   +2   54   in 1950   4   in 1904  
 Month Avg Max Temperature   41.8   50.3   40.0   +1.8   55.3   in 2000   13.8   in 1918  
Month Avg Min Temperature   27.3   38.5   26.3   +1.0   39.0   in 2000   0.8   in 1918  
Month Average Temperature   34.5   44.8   33.3   +1.3   47.3   in 2000   7.5   in 1918  
High Heat Index                   #N/A   in #N/A            
Low Wind Chill   15   39   16   -1             -28   in 1981  
Heating Degree Days   30   19   32   -2   61   in 1904   11   in 1950  
Month Heating DD   122   81   127   -5   230   in 1918   71   in 2000  
Season Heating DD   1799   1774   1997   -198   2677   in 1918   1443   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   33   49   32   +1   57   in 2000   7   in 1981  
Minimum Dew Point   12   41   17   -5   46   in 1950   -24   in 1981  
Average  Dew Point   23   45   25   -2   50   in 2000   -9   in 1981  
 Month Avg Max Dew Point   30.5   47.5   32.8   -2.3   50.3   in 2000   14.3   in 1981  
Month Avg Min Dew Point   20.5   34.8   17.0   +3.5   36.3   in 2000   -10.8   in 1981  
Month Average Dew Point   25.8   41.3   25.0   +0.8   43.3   in 2000   1.8   in 1981  
Precipitation   .00   .29   .12   -.12   1.85   in 1944            
One Hour Rain   .00   .08           .30   in 1982            
Half Hour Rain   .00   .05           .13   in 2004            
Hourly Rain Rate   .00   .23           .71   in 2004            
Month Precipitation   .00   .68   .48   -.48   3.53   in 1919   .00   in 2024  
Year Precipitation   .00   .68   .48   -.48   3.53   in 1919   .00   in 2024  
Snow   0.0   0.0   0.3   -0.3   12.5   in 2018            
Snow Depth   0   0   1   -1   19   in 1948            
Month Snow   0.0   0.0   1.2   -1.2   12.5   in 2018   0.0   in 2024  
Season Snow   0.1   1.5   8.3   -8.2   31.1   in 1905   T   in 2000  
    January 4, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   82%   100%   85%   -3%   100%   in 2023   44%   in 1965  
Minimum Humidity   49%   97%   57%   -8%   97%   in 2023   25%   in 2002  
Average Humidity   66%   99%   71%   -6%   99%   in 2023   37%   in 1965  
Maximum Barometer   30.08   29.94   30.11   -00.03   30.86   in 1983   29.60   in 2017  
Minimum Barometer   29.84   29.77   29.77   +00.07   30.38   in 2008   28.79   in 2018  
Average Barometer   29.96   29.86   29.94   +00.02   30.53   in 1983   29.43   in 2018  
Average Wind   9.8   3.8   8.5   +1.3   19.4   in 1951   1.9   in 1997  
Direction   NNW   E   W       SSW N
High Wind Gust   32   13   27   +5   56   in 1944   10   in 1956  
Direction   NNW   WSW   NNW       NE SW
Maximum Water Temp   44.4   45.5   42.2   +2.2   48.9   in 2007   36.1   in 2001  
Minimum Water Temp   43.5   44.1   40.3   +3.2   47.7   in 2007   33.2   in 2008  
Average Water Temp   44.0   44.8   41.3   +2.6   48.3   in 2007   35.3   in 2001  
Sunrise/ AM Twilight   7:11:49 AM   6:40:41 AM            
Sunset / PM Twilight   4:28:19 PM   4:59:53 PM            
Length Of Day   16:28:05                          
Special Conditions   None                              
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