Portsmouth Rhode Island Weather Almanac  
Sunday, December 25, 2022  
Clear early then Partly Cloudy, Windy and Cold  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    December 25, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   27   42   41   -14   65   in 2015   12   in 1983  
Minimum Temperature   13   29   28   -15   54   in 2015   -4   in 1980  
Average Temperature   20   36   35   -15   60   in 2015   8   in 1983  
 Month Avg Max Temperature   42.6   46.9   43.8   -1.3   54.9   in 2015   30.9   in 1989  
Month Avg Min Temperature   30.0   33.6   30.7   -0.8   42.5   in 2015   14.2   in 1989  
Month Average Temperature   36.5   40.5   37.2   -0.7   49.0   in 2015   22.8   in 1989  
High Heat Index                                      
Low Wind Chill   -3   26   14   -17             -31   in 1980  
Heating Degree Days   45   29   30   +15   57   in 1983   5   in 2015  
Month HDD   712   612   692   +20   1056   in 1989   399   in 2015  
Season HDD   1533   1406   1682   -149   2282   in 1904   1194   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   13   41   34   -21   59   in 2014   -6   in 1983  
Minimum Dew Point   3   26   18   -15   50   in 2015   -28   in 1980  
Average  Dew Point   8   34   26   -18   54   in 2015   -11   in 1983  
 Month Avg Max Dew Point   36.1   40.4   34.8   +1.3   49.8   in 2015   15.3   in 1989  
Month Avg Min Dew Point   22.0   21.4   19.4   +2.6   37.5   in 2015   -1.4   in 1989  
Month Average Dew Point   29.3   31.1   27.1   +2.2   43.8   in 2015   7.0   in 1989  
Precipitation   .00   .25   .14   -.14   1.83   in 2020            
One Hour   .00   .08           .48   in 2020            
Hourly Rate   .00   .17           3.49   in 2020            
Month Precipitation   4.66   1.33   3.72   +.94   9.27   in 1936   .45   in 1943  
Year Precipitation   42.47   46.91   45.15   -2.68   65.27   in 1983   27.52   in 1965  
Snow   0.0   0.0   0.2   -0.2   3.6   in 1909       in    
Snow Depth   0   T           10   in 2009       in    
Month Snow   1.5   0.8   4.7   -3.2   21.3   in 1981   0.0   in 2015  
Season Snow   1.5   0.8   5.3   -3.8   21.3   in 1981   0.0   in 2015  
    December 25, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   66%   99%   86%   -20%   100%   in 2015   48%   in 1983  
Minimum Humidity   47%   85%   54%   -7%   88%   in 1982   19%   in 1968  
Average Humidity   57%   92%   70%   -13%   94%   in 1982   39%   in 1968  
Maximum Barometer   29.97   29.95   30.15   -00.18   30.97   in 1949   29.48   in 1966  
Minimum Barometer   29.80   29.47   29.77   +00.03   30.68   in 1949   28.74   in 1978  
Average Barometer   29.89   29.71   29.96   -00.07   30.83   in 1949   29.20   in 1978  
Average Wind   10.5   3.8   8.4   +2.1   21.0   in 1966   1.4   in 2015  
Direction   W   NW   WNW       W SE
High Wind Gust   32   14   27   +5   52   in 1966   9   in 2015  
Direction   WSW   NNW   NW       W SSE
Maximum Water Temp   41.5   47.5   44.5   -3.0   51.1   in 2015   40.2   in 2019  
Minimum Water Temp   37.9   44.2   42.1   -4.2   50.2   in 2015   34.5   in 2000  
Average Water Temp   39.7   45.9   43.3   -3.6   50.7   in 2015   37.6   in 2000  
Sunrise/ AM Twilight   7:10:01 AM   6:40:23 AM            
Sunset / PM Twilight   4:20:26 PM   4:50:20 PM            
Length Of Day   9:10:25                          
Special Conditions   None                              
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