Portsmouth Rhode Island Weather Almanac  
Sunday, February 4, 2024  
Clear, Dry, Windy, Continued Cold  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    February 4, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   40   19   38   +2   58   in 1991   13   in 1996  
Minimum Temperature   24   -8   24   +0   42   in 2016   -8   in 2023  
Average Temperature   32   6   31   +1   48   in 2016   6   in 2023  
 Month Avg Max Temperature   41.0   30.5   37.5   +3.5   53.8   in 2016   19.3   in 1971  
Month Avg Min Temperature   30.3   8.3   23.5   +6.8   38.5   in 2016   4.5   in 1971  
Month Average Temperature   35.8   19.8   31.0   +4.8   46.3   in 2016   12.3   in 1971  
High Heat Index                   #N/A   in #N/A            
Low Wind Chill   12   -34   10   +2             -34   in 2023  
Heating Degree Days   33   59   34   -1   59   in 2023   17   in 2016  
Month Heating DD   117   181   136   -19   211   in 1971   75   in 2016  
Season Heating DD   2784   2675   3055   -271   3958   in 1918   2366   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   21   8   29   -8   53   in 2016   -5   in 1996  
Minimum Dew Point   14   -25   12   +2   41   in 1984   -25   in 2023  
Average  Dew Point   18   -9   21   -3   46   in 2016   -10   in 1978  
 Month Avg Max Dew Point   32.0   19.3   28.0   +4.0   46.3   in 2016   1.3   in 1971  
Month Avg Min Dew Point   23.0   -6.3   11.8   +11.3   32.8   in 2016   -11.3   in 1980  
Month Average Dew Point   27.8   6.5   21.0   +6.8   39.5   in 2016   -3.6   in 1980  
Precipitation   .00   .00   .11   -.11   2.46   in 1961            
One Hour Rain   .00   .00           .34   in 2022            
Half Hour Rain   .00   .00           .19   in 2022            
Hourly Rain Rate   .00   .00           1.06   in 2006            
Month Precipitation   T   T   .44   -.44   3.16   in 1970   .00   in 2019  
Year Precipitation   6.75   7.19   4.11   +2.64   12.07   in 1979   1.00   in 1955  
Snow   0.0   0.0   0.3   -0.3   17.9   in 1961            
Snow Depth   0   0   2   -2   24   in 1898            
Month Snow   0.0   T   1.2   -1.2   17.9   in 1961   0.0   in 2024  
Season Snow   6.6   2.3   18.3   -11.7   51.0   in 1996   1.5   in 1989  
    February 4, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   70%   71%   83%   -13%   100%   in 2018   50%   in 1981  
Minimum Humidity   40%   28%   51%   -11%   94%   in 1984   22%   in 2007  
Average Humidity   55%   50%   67%   -12%   97%   in 1984   37%   in 2007  
Maximum Barometer   29.99   30.57   30.16   -00.17   30.75   in 1975   29.50   in 1954  
Minimum Barometer   29.85   30.28   29.78   +00.07   30.45   in 1963   28.72   in 1995  
Average Barometer   29.92   30.43   29.97   -00.05   30.58   in 1975   29.39   in 1972  
Average Wind   11.8   12.5   8.3   +3.5   21.8   in 1961   1.4   in 1966  
Direction   N   NW   NW       NE   ENE  
High Wind Gust   28   45   26   +2   55   in 1972   9   in 1966  
Direction   N   NW   NW       SSE   E  
Maximum Water Temp   42.1   36.3   38.7   +3.4   44.1   in 2016   35.6   in 2018  
Minimum Water Temp   39.7   33.6   37.1   +2.6   43.0   in 2016   32.6   in 2018  
Average Water Temp   40.9   35.0   37.9   +3.0   43.6   in 2016   34.1   in 2018  
Sunrise/ AM Twilight   6:54:08 AM   6:23:22 AM            
Sunset / PM Twilight   5:04:11 PM   5:35:05 PM            
Length Of Day   10:10:03                          
Special Conditions   None                              
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