Portsmouth Rhode Island Weather Almanac  
Thursday, January 5, 2023  
Cloudy, Light Rain early, Foggy, Breezy and Continued Warm  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    January 5, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   46   52   40   +6   57   in 1950   17   in 1904  
Minimum Temperature   37   30   26   +11   46   in 2007   -5   in 1981  
Average Temperature   42   41   33   +9   52   in 1950   8   in 1904  
 Month Avg Max Temperature   49.4   44.6   40.0   +9.4   54.4   in 2000   16.0   in 1918  
Month Avg Min Temperature   38.2   30.6   26.2   +12.0   38.6   in 1950   2.6   in 1918  
Month Average Temperature   44.2   37.8   33.2   +11.0   45.6   in 2000   9.6   in 1918  
High Heat Index                                      
Low Wind Chill   29   29   14   +15             -24   in 1981  
Heating Degree Days   23   24   32   -9   57   in 1904   13   in 1950  
Month HDD   104   136   159   -55   277   in 1918   97   in 2000  
Season HDD   1797   1692   2029   -232   2724   in 1918   1489   in 2016  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   45   51   32   +13   55   in 1993   -4   in 1989  
Minimum Dew Point   37   25   16   +21   42   in 2007   -21   in 1981  
Average  Dew Point   41   38   24   +17   48   in 2007   -11   in 1981  
 Month Avg Max Dew Point   47.0   32.5   32.6   +14.4   47.0   in 2023   11.2   in 1981  
Month Avg Min Dew Point   35.2   23.2   16.8   +18.4   35.2   in 2023   -12.8   in 1981  
Month Average Dew Point   41.2   28.0   24.8   +16.4   41.2   in 2023   -0.8   in 1981  
Precipitation   .02   .60   .12   -.10   1.15   in 1897            
One Hour   .01   .22           .29   in 1993            
Hourly Rate   .00   2.13           2.13   in 2022            
Month Precipitation   .70   1.07   .60   +.10   3.53   in 1919   .00   in 2013  
Year Precipitation   .70   1.07   .60   +.10   3.53   in 1919   .00   in 2013  
Snow   0.0   0.0   0.3   -0.3   3.0   in 1952       in    
Snow Depth   0   0           17   in 1948       in    
Month Snow   0.0   T   1.5   -1.5   12.5   in 2018   0.0   in 2023  
Season Snow   1.5   0.8   8.6   -7.1   31.1   in 1905   T   in 2000  
    January 5, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   98%   81%   +18%   100%   in 2007   46%   in 1989  
Minimum Humidity   97%   78%   53%   +44%   97%   in 2023   25%   in 1959  
Average Humidity   98%   88%   67%   +31%   98%   in 2023   37%   in 1989  
Maximum Barometer   30.00   30.30   30.12   -00.12   30.81   in 1935   29.63   in 2010  
Minimum Barometer   29.83   29.66   29.80   +00.03   30.44   in 1979   29.27   in 1985  
Average Barometer   29.92   29.98   29.96   -00.05   30.53   in 1979   29.48   in 1985  
Average Wind   8.8   10.0   8.4   +0.4   25.3   in 1959   2.8   in 1984  
Direction   N   SSE   WNW       WNW SE
High Wind Gust   24   33   26   -2   61   in 1959   13   in 1974  
Direction   NW   S   WNW       WNW WNW
Maximum Water Temp   46.2   46.2   42.2   +4.0   50.4   in 2007   35.5   in 2018  
Minimum Water Temp   43.3   43.3   40.1   +3.2   48.7   in 2007   31.0   in 2018  
Average Water Temp   44.8   44.8   41.2   +3.6   49.5   in 2007   33.3   in 2018  
Sunrise/ AM Twilight   7:11:48 AM   6:40:41 AM            
Sunset / PM Twilight   4:29:16 PM   5:00:47 PM            
Length Of Day   9:17:28                          
Special Conditions   Fog                                  
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