Portsmouth Rhode Island Weather Almanac  
Sunday, December 4, 2022  
Clear early then Partly Cloudy, Much Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    December 4, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   43   43   46   -3   68   in 1998   20   in 1906  
Minimum Temperature   29   31   33   -4   53   in 1950   5   in 1940  
Average Temperature   36   37   39   -3   59   in 1998   13   in 1906  
 Month Avg Max Temperature   47.5   49.0   46.5   +1.0   59.5   in 1998   29.3   in 1896  
Month Avg Min Temperature   34.0   34.0   33.5   +0.5   44.8   in 1998   13.3   in 1989  
Month Average Temperature   41.0   41.8   39.8   +1.3   52.5   in 1998   23.3   in 1976  
High Heat Index                                      
Low Wind Chill   28   23   23   +5             -11   in 1989  
Heating Degree Days   29   28   26   +3   52   in 1906   6   in 1998  
Month HDD   96   93   101   -5   167   in 1976   50   in 1998  
Season HDD   917   887   1091   -174   1459   in 1904   862   in 2011  
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   33   35   39   -6   58   in 1990   1   in 1989  
Minimum Dew Point   24   18   24   +0   50   in 1950   -11   in 1989  
Average  Dew Point   29   27   31   -2   54   in 1950   -5   in 1989  
 Month Avg Max Dew Point   41.3   39.3   38.5   +2.8   51.0   in 1982   13.8   in 1976  
Month Avg Min Dew Point   25.8   22.8   23.8   +2.0   39.0   in 1982   -3.8   in 1989  
Month Average Dew Point   33.8   31.3   31.1   +2.6   45.0   in 1982   6.0   in 1976  
Precipitation   .00   .00   .15   -.15   2.40   in 1990            
One Hour   .00   .00           .39   in 1990            
Hourly Rate   .00   .00           .17   in 2006            
Month Precipitation   .52   T   .60   -.08   3.13   in 1893   .00   in 2011  
Year Precipitation   38.33   45.58   42.03   -3.70   61.39   in 1983   24.18   in 1957  
Snow   0.0   0.0   0.1   -0.1   3.3   in 1901       in    
Snow Depth   0   0           4   in 1898       in    
Month Snow   0.0   0.0   0.4   -0.4   4.2   in 2019   0.0   in 2022  
Season Snow   0.0   T   1.0   -1.0   19.5   in 1898   0.0   in 2022  
    December 4, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   86%   78%   85%   +1%   100%   in 2001   42%   in 1980  
Minimum Humidity   53%   53%   54%   -1%   91%   in 1955   24%   in 2000  
Average Humidity   70%   66%   69%   +0%   93%   in 1964   33%   in 1980  
Maximum Barometer   30.20   30.15   30.14   +00.06   30.72   in 1966   29.56   in 2019  
Minimum Barometer   30.00   30.04   29.82   +00.18   30.55   in 1966   29.01   in 1978  
Average Barometer   30.10   30.10   29.98   +00.12   30.64   in 1966   29.47   in 1970  
Average Wind   7.3   6.0   7.9   -0.6   19.4   in 1980   1.8   in 1994  
Direction   NW   SSW   WNW       NW SSW
High Wind Gust   27   22   25   +2   58   in 1900   11   in 2017  
Direction   WNW   WNW   WNW       E NE
Maximum Water Temp   51.3   50.2   48.4   +2.9   52.6   in 2009   43.5   in 2000  
Minimum Water Temp   49.5   48.9   46.0   +3.5   51.0   in 2009   39.4   in 2002  
Average Water Temp   50.4   49.6   47.2   +3.2   51.8   in 2009   41.9   in 2002  
Sunrise/ AM Twilight   6:55:12 AM   6:26:06 AM            
Sunset / PM Twilight   4:15:12 PM   4:44:31 PM            
Length Of Day   9:20:00                          
Special Conditions   None                              
Comments   Abnormally Dry  
Hour-by-Hour Weather For December 4, 2022            
Climate Weather for December 4            
Weather History For December 4            
Weather Calendar            
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