Portsmouth Rhode Island Weather Almanac  
Tuesday, December 27, 2022  
Cloudy early then Partly Cloudy, Light Winds and Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    December 27, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   34   36   41   -7   59   in 2015   12   in 1925  
Minimum Temperature   25   30   27   -2   45   in 2015   2   in 1914  
Average Temperature   30   33   34   -4   52   in 2015   9   in 1925  
 Month Avg Max Temperature   41.9   46.3   43.6   -1.8   55.1   in 2015   30.5   in 1989  
Month Avg Min Temperature   29.3   33.5   30.5   -1.1   42.7   in 2015   14.0   in 1989  
Month Average Temperature   35.9   40.1   37.0   -1.1   49.3   in 2015   22.5   in 1989  
High Heat Index                                      
Low Wind Chill   18   22   15   +3             -16   in 1989  
Heating Degree Days   35   32   31   +4   56   in 1925   13   in 2015  
Month HDD   787   671   754   +33   1148   in 1989   425   in 2015  
Season HDD   1608   1465   1744   -136   2351   in 1904   1220   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   19   32   33   -14   57   in 2015   -8   in 1993  
Minimum Dew Point   13   24   18   -5   42   in 2015   -17   in 1968  
Average  Dew Point   16   28   26   -10   50   in 2015   -11   in 1993  
 Month Avg Max Dew Point   34.9   40.0   34.5   +0.4   50.1   in 2015   15.1   in 1989  
Month Avg Min Dew Point   21.3   21.7   19.0   +2.2   37.6   in 2015   -1.6   in 1989  
Month Average Dew Point   28.3   31.0   26.8   +1.5   44.1   in 2015   6.7   in 1989  
Precipitation   .00   .01   .14   -.14   2.52   in 1905            
One Hour   .00   .01           .26   in 1973            
Hourly Rate   .00   .00           .79   in 2012            
Month Precipitation   4.66   1.45   4.00   +.66   9.28   in 1936   .56   in 1955  
Year Precipitation   42.47   47.03   45.43   -2.96   65.27   in 1983   27.66   in 1965  
Snow   0.0   0.0   0.3   -0.3   5.7   in 1944       in    
Snow Depth   0   0           13   in 1947       in    
Month Snow   1.5   0.8   5.3   -3.8   21.7   in 1981   0.0   in 2015  
Season Snow   1.5   0.8   5.9   -4.4   22.3   in 1904   0.0   in 2015  
    December 27, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   76%   86%   82%   -6%   100%   in 2015   49%   in 1993  
Minimum Humidity   46%   69%   53%   -7%   93%   in 1973   20%   in 1960  
Average Humidity   61%   78%   68%   -7%   96%   in 1973   39%   in 1993  
Maximum Barometer   30.30   30.09   30.19   +00.11   30.92   in 1990   29.20   in 1969  
Minimum Barometer   30.19   29.87   29.84   +00.35   30.56   in 1990   28.71   in 2010  
Average Barometer   30.25   29.98   30.01   +00.23   30.74   in 1990   28.97   in 1969  
Average Wind   5.8   5.4   8.0   -2.2   23.4   in 2010   2.1   in 1961  
Direction   WNW   NNW   WNW       NNW SSW
High Wind Gust   20   27   26   -6   55   in 1934   10   in 1967  
Direction   W   NW   WNW       NW N
Maximum Water Temp   42.1   45.3   43.8   -1.7   50.5   in 2015   39.0   in 2000  
Minimum Water Temp   39.4   43.7   41.6   -2.2   49.7   in 2015   34.5   in 2000  
Average Water Temp   40.8   44.5   42.7   -1.9   50.1   in 2015   36.8   in 2000  
Sunrise/ AM Twilight   7:10:41 AM   6:41:03 AM            
Sunset / PM Twilight   4:21:46 PM   4:51:39 PM            
Length Of Day   9:11:05                          
Special Conditions   None                              
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