Portsmouth Rhode Island Weather Almanac  
Saturday, January 21, 2023  
Cloudy, Light Snow early, Colder  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    January 21, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   35   23   37   -2   54   in 1979   12   in 2019  
Minimum Temperature   31   12   23   +8   41   in 1923   2   in 2019  
Average Temperature   33   18   30   +3   46   in 1923   7   in 2019  
 Month Avg Max Temperature   44.0   38.8   38.4   +5.6   45.9   in 1913   26.8   in 1981  
Month Avg Min Temperature   33.2   21.3   24.7   +8.6   33.2   in 2023   9.7   in 1981  
Month Average Temperature   38.9   30.2   31.7   +7.2   38.9   in 2023   18.5   in 1981  
High Heat Index                                      
Low Wind Chill   25   -2   8   +17             -19   in 1985  
Heating Degree Days   32   47   35   -3   58   in 2019   19   in 1923  
Month HDD   549   730   700   -151   976   in 1981   549   in 2023  
Season HDD   2242   2286   2570   -328   3333   in 1918   1984   in 2016  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   32   11   29   +3   53   in 1979   -3   in 1985  
Minimum Dew Point   25   0   13   +12   36   in 2017   -18   in 1985  
Average  Dew Point   29   6   21   +8   42   in 1959   -11   in 1985  
 Month Avg Max Dew Point   39.1   32.1   31.0   +8.2   39.9   in 2006   12.7   in 1981  
Month Avg Min Dew Point   28.6   10.0   14.9   +13.7   28.6   in 2023   -5.7   in 1981  
Month Average Dew Point   34.0   15.7   23.0   +11.0   34.0   in 2023   3.5   in 1981  
Precipitation   .01   .00   .12   -.11   2.05   in 1979            
One Hour   .00   .00           .56   in 1979            
Hourly Rate   .00   .00           .00   in              
Month Precipitation   3.72   2.78   2.54   +1.18   9.13   in 1979   .51   in 1984  
Year Precipitation   3.72   2.78   2.54   +1.18   9.13   in 1979   .51   in 1984  
Snow   0.1   0.0   0.4   -0.3   8.6   in 2012       in    
Snow Depth   T   T           14   in 1961       in    
Month Snow   0.2   4.8   6.4   -6.2   25.8   in 1996   0.0   in 2007  
Season Snow   1.7   5.6   13.5   -11.8   41.6   in 1996   0.4   in 2007  
    January 21, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   98%   65%   80%   +18%   100%   in 2017   46%   in 1980  
Minimum Humidity   75%   50%   51%   +24%   94%   in 1959   22%   in 1989  
Average Humidity   87%   58%   66%   +21%   96%   in 1959   38%   in 1980  
Maximum Barometer   30.22   30.56   30.14   +00.08   30.92   in 1949   29.53   in 1985  
Minimum Barometer   29.86   30.33   29.81   +00.05   30.42   in 1996   28.70   in 1979  
Average Barometer   30.04   30.45   29.98   +00.06   30.54   in 2008   29.15   in 1964  
Average Wind   5.9   11.1   8.6   -2.7   22.5   in 2000   1.3   in 1981  
Direction   NNW   N   WNW       NW S
High Wind Gust   17   32   27   -10   45   in 1947   10   in 1981  
Direction   NNW   NNW   NNW       W S
Maximum Water Temp   43.0   39.4   39.5   +3.5   45.1   in 2007   35.7   in 2003  
Minimum Water Temp   42.3   37.0   36.8   +5.5   42.3   in 2023   32.4   in 2004  
Average Water Temp   42.7   38.2   38.1   +4.5   42.7   in 2023   34.2   in 2003  
Sunrise/ AM Twilight   7:06:07 AM   6:35:45 AM            
Sunset / PM Twilight   4:46:56 PM   5:17:26 PM            
Length Of Day   9:40:49                          
Special Conditions   Fog                                  
Comments      
Hour-by-Hour Weather For January 21, 2023            
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