Portsmouth Rhode Island Weather Almanac  
Friday, January 20, 2023  
Cloudy, Light Rain, Light Snow & Light Mix and Colder  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    January 20, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   40   43   37   +3   56   in 1947   15   in 1994  
Minimum Temperature   32   22   23   +9   43   in 1900   -1   in 1971  
Average Temperature   36   33   30   +6   50   in 1900   8   in 1971  
 Month Avg Max Temperature   44.5   39.6   38.5   +6.0   46.2   in 2007   26.5   in 1981  
Month Avg Min Temperature   33.4   21.8   24.8   +8.6   33.4   in 2023   9.4   in 1957  
Month Average Temperature   39.2   30.9   31.8   +7.4   39.5   in 2007   18.3   in 1981  
High Heat Index                                      
Low Wind Chill   27   9   11   +16             -28   in 1971  
Heating Degree Days   29   32   35   -6   57   in 1971   15   in 1900  
Month HDD   517   683   665   -148   934   in 1981   510   in 2007  
Season HDD   2210   2239   2535   -325   3290   in 1918   1948   in 2016  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   39   37   29   +10   52   in 1986   -2   in 1971  
Minimum Dew Point   31   8   13   +18   38   in 1995   -13   in 1971  
Average  Dew Point   35   23   21   +14   44   in 1986   -8   in 1971  
 Month Avg Max Dew Point   39.5   33.2   31.1   +8.5   41.0   in 2007   12.9   in 1981  
Month Avg Min Dew Point   28.8   10.5   15.0   +13.8   28.8   in 2023   -5.9   in 1981  
Month Average Dew Point   34.2   16.3   23.1   +11.1   34.2   in 2023   3.5   in 1981  
Precipitation   .20   .17   .12   +.08   2.28   in 2019            
One Hour   .11   .03           .36   in 2019            
Hourly Rate   .56   .00           6.06   in 2019            
Month Precipitation   3.71   2.78   2.42   +1.29   7.08   in 1979   .50   in 1902  
Year Precipitation   3.71   2.78   2.42   +1.29   7.08   in 1979   .50   in 1902  
Snow   T   0.3   0.3   -0.3   10.4   in 1978       in    
Snow Depth   0   0           10   in 1936       in    
Month Snow   0.1   4.8   6.0   -5.9   25.8   in 1996   0.0   in 2007  
Season Snow   1.6   5.6   13.1   -11.5   41.6   in 1996   0.2   in 1914  
    January 20, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   97%   84%   +15%   100%   in 2019   54%   in 1983  
Minimum Humidity   95%   55%   54%   +41%   95%   in 2023   24%   in 2003  
Average Humidity   97%   76%   69%   +28%   97%   in 2023   44%   in 1983  
Maximum Barometer   29.86   30.33   30.09   -00.23   30.89   in 1957   29.49   in 1985  
Minimum Barometer   29.48   29.94   29.76   -00.28   30.54   in 1957   28.93   in 1964  
Average Barometer   29.67   30.14   29.93   -00.26   30.72   in 1957   29.33   in 1986  
Average Wind   8.2   7.2   8.8   -0.6   22.3   in 1961   1.3   in 1990  
Direction   NNW   NW   WNW       N SSE
High Wind Gust   33   30   27   +6   53   in 1978   11   in 2017  
Direction   NE   NNE   WNW       NE SSW
Maximum Water Temp   43.3   42.2   40.1   +3.2   47.7   in 2007   35.0   in 1997  
Minimum Water Temp   41.7   39.4   37.9   +3.8   43.2   in 2007   32.9   in 2018  
Average Water Temp   42.5   40.8   38.9   +3.6   45.4   in 2007   34.0   in 1997  
Sunrise/ AM Twilight   7:06:45 AM   6:36:19 AM            
Sunset / PM Twilight   4:45:43 PM   5:16:18 PM            
Length Of Day   9:38:58                          
Special Conditions   Fog                                  
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Hour-by-Hour Weather For January 20, 2023            
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