Portsmouth Rhode Island Weather Almanac  
Wednesday, December 28, 2022  
Cloudy early, Partly Cloudy Day to Mostly Cloudy PM, Light Winds and Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    December 28, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   43   47   41   +2   56   in 2011   15   in 2017  
Minimum Temperature   25   36   27   -2   43   in 2008   3   in 1905  
Average Temperature   34   42   34   +0   48   in 2008   12   in 2017  
 Month Avg Max Temperature   41.9   46.3   43.5   -1.6   54.8   in 2015   30.4   in 1989  
Month Avg Min Temperature   29.2   33.6   30.4   -1.2   42.3   in 2015   14.1   in 1989  
Month Average Temperature   35.8   40.2   36.9   -1.1   48.9   in 2015   22.5   in 1989  
High Heat Index                                      
Low Wind Chill   22   34   15   +7             -11   in 1952  
Heating Degree Days   31   23   31   +0   53   in 2017   17   in 2008  
Month HDD   818   694   785   +33   1191   in 1989   452   in 2015  
Season HDD   1639   1488   1775   -136   2375   in 1904   1247   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   36   44   33   +3   54   in 2018   2   in 2017  
Minimum Dew Point   18   32   18   +0   36   in 2008   -9   in 2017  
Average  Dew Point   27   38   25   +2   44   in 2008   -4   in 2017  
 Month Avg Max Dew Point   34.9   40.1   34.4   +0.5   49.8   in 2015   15.1   in 1989  
Month Avg Min Dew Point   21.1   22.0   18.9   +2.3   36.8   in 2015   -1.3   in 1989  
Month Average Dew Point   28.3   31.3   26.6   +1.6   43.5   in 2015   6.9   in 1989  
Precipitation   .00   .21   .14   -.14   2.75   in 1967            
One Hour   .00   .06           .41   in 1967            
Hourly Rate   .00   .17           2.17   in 2011            
Month Precipitation   4.66   1.66   4.14   +.52   9.28   in 1936   .56   in 1955  
Year Precipitation   42.47   47.24   45.57   -3.10   65.49   in 1983   27.66   in 1965  
Snow   0.0   0.0   0.3   -0.3   5.6   in 1990       in    
Snow Depth   0   0           15   in 1947       in    
Month Snow   1.5   0.8   5.6   -4.1   21.7   in 1981   0.0   in 2015  
Season Snow   1.5   0.8   6.2   -4.7   22.9   in 1904   0.0   in 2015  
    December 28, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   82%   98%   85%   -3%   100%   in 2018   46%   in 1952  
Minimum Humidity   65%   64%   55%   +10%   87%   in 1959   18%   in 2003  
Average Humidity   74%   81%   70%   +3%   93%   in 1961   44%   in 1991  
Maximum Barometer   30.34   29.90   30.18   +00.16   30.78   in 1992   29.63   in 1976  
Minimum Barometer   30.25   29.76   29.86   +00.39   30.58   in 1992   29.20   in 1969  
Average Barometer   30.30   29.83   30.02   +00.28   30.68   in 1992   29.44   in 1969  
Average Wind   5.4   4.7   8.0   -2.6   17.6   in 1969   2.7   in 1958  
Direction   SW   NW   NW       NW SSW
High Wind Gust   27   18   26   +1   53   in 1969   9   in 2003  
Direction   SW   NW   WNW       NW N
Maximum Water Temp   42.4   46.9   43.6   -1.2   50.4   in 2015   38.8   in 2010  
Minimum Water Temp   39.6   44.2   41.2   -1.6   47.0   in 2015   34.9   in 2000  
Average Water Temp   41.0   45.6   42.4   -1.4   48.7   in 2015   37.5   in 2017  
Sunrise/ AM Twilight   7:10:58 AM   6:41:20 AM            
Sunset / PM Twilight   4:22:29 PM   4:52:22 PM            
Length Of Day   9:11:31                          
Special Conditions   None                              
Comments      
Hour-by-Hour Weather For December 28, 2022            
Climate Weather for December 28            
Weather History For December 28            
Weather Calendar            
Back To Weather Stat Page            
Home