Portsmouth Rhode Island Weather Almanac  
Friday, December 23, 2022  
Cloudy, Rain, Fog and Very Warm Morning to Mostly Cloudy and Very Cold & Windy PM  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    December 23, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   54   33   42   +12   62   in 2015   20   in 1989  
Minimum Temperature   15   26   28   -13   50   in 1990   2   in 1955  
Average Temperature   35   30   35   +0   55   in 2015   13   in 1989  
 Month Avg Max Temperature   44.3   47.9   44.1   +0.3   53.9   in 2015   31.5   in 1989  
Month Avg Min Temperature   31.7   34.3   31.0   +0.7   41.5   in 2015   15.0   in 1989  
Month Average Temperature   38.3   41.3   37.4   +0.8   48.0   in 2015   23.5   in 1989  
High Heat Index                                      
Low Wind Chill   1   17   18   -17             -13   in 1954  
Heating Degree Days   30   35   30   +0   52   in 1989   10   in 2015  
Month HDD   615   544   632   -17   955   in 1989   390   in 2015  
Season HDD   1436   1338   1622   -186   2202   in 1904   1185   in 2015  
Cooling Degree Days   0   0   #REF!   #REF!   0   in 2022   0   in    
Month CDD                                 in    
Year CDD   777   795   609   +168   871   in 2020   290   in 1902  
Maximum Dew Point   53   21   34   +19   62   in 2015   -2   in 1989  
Minimum Dew Point   5   2   19   -14   50   in 1990   -7   in 1955  
Average  Dew Point   29   12   26   +3   55   in 2015   -4   in 1989  
 Month Avg Max Dew Point   38.3   41.0   35.1   +3.2   48.8   in 2015   15.9   in 1989  
Month Avg Min Dew Point   23.9   21.9   19.8   +4.1   36.3   in 2015   -1.2   in 1989  
Month Average Dew Point   31.3   31.7   27.4   +3.9   42.7   in 2015   7.4   in 1989  
Precipitation   .64   .00   .14   +.50   1.85   in 2015            
One Hour   .16   .00           .99   in 2015            
Hourly Rate   3.43   .00           4.50   in 2004            
Month Precipitation   4.66   1.04   3.44   +1.22   9.27   in 1936   .37   in 1998  
Year Precipitation   42.47   46.62   44.87   -2.40   65.09   in 1983   27.14   in 1965  
Snow   T   0.0   0.2   -0.2   6.2   in 1905       in    
Snow Depth   0   0           17   in 2009       in    
Month Snow   1.5   0.2   4.2   -2.7   21.3   in 1981   0.0   in 2015  
Season Snow   1.5   0.2   4.8   -3.3   21.3   in 1981   0.0   in 2015  
    December 23, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   99%   64%   85%   +14%   100%   in 2017   51%   in 1960  
Minimum Humidity   63%   29%   58%   +5%   93%   in 1990   26%   in 1971  
Average Humidity   81%   47%   72%   +9%   97%   in 1990   44%   in 1960  
Maximum Barometer   29.93   30.19   30.16   -00.23   30.78   in 1971   29.76   in 1991  
Minimum Barometer   29.04   29.80   29.84   -00.80   30.64   in 1971   28.96   in 1968  
Average Barometer   29.49   30.00   30.00   -00.51   30.71   in 1971   29.46   in 1968  
Average Wind   20.6   9.8   8.0   +12.6   20.6   in 2022   1.9   in 1996  
Direction   SW   NW   W       SW SSE
High Wind Gust   46   29   26   +20   61   in 1994   11   in 1980  
Direction   SW   WNW   NW       NNE ESE
Maximum Water Temp   48.2   46.4   44.4   +3.8   51.1   in 2011   38.9   in 2008  
Minimum Water Temp   45.7   44.1   42.2   +3.5   49.2   in 2015   36.9   in 2008  
Average Water Temp   47.0   45.3   43.3   +3.7   50.0   in 2011   37.9   in 2008  
Sunrise/ AM Twilight   7:09:12 AM   6:39:34 AM            
Sunset / PM Twilight   4:19:13 PM   4:49:07 PM            
Length Of Day   9:10:01                          
Special Conditions   Fog                                  
Comments   Record breaking temperature and dew point ranges  
Hour-by-Hour Weather For December 23, 2022            
Climate Weather for December 23            
Weather History For December 23            
Weather Calendar            
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