Portsmouth Rhode Island Weather Almanac  
Friday, January 13, 2023  
Cloudy, Moderate/Heavy Rain and Fog, Windy and Very Warm  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    January 13, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   56   49   38   +18   58   in 1932   8   in 1914  
Minimum Temperature   41   28   24   +17   47   in 1932   -5   in 1912  
Average Temperature   49   39   31   +18   53   in 1932   4   in 1912  
 Month Avg Max Temperature   45.8   40.4   39.2   +6.6   49.2   in 2007   23.6   in 1981  
Month Avg Min Temperature   33.8   23.6   25.4   +8.5   37.2   in 2007   6.6   in 1981  
Month Average Temperature   40.1   32.2   32.4   +7.7   43.3   in 2007   15.4   in 1981  
High Heat Index                                      
Low Wind Chill   34   28   12   +22             -19   in 1912  
Heating Degree Days   16   26   34   -18   61   in 1912   12   in 1932  
Month HDD   324   427   424   -100   645   in 1981   282   in 2007  
Season HDD   2017   1983   2294   -277   3016   in 1918   1714   in 2016  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   55   40   31   +24   55   in 2023   -8   in 1981  
Minimum Dew Point   37   20   14   +23   43   in 2013   -13   in 1981  
Average  Dew Point   46   30   23   +23   46   in 2023   -11   in 1981  
 Month Avg Max Dew Point   41.6   34.3   31.8   +9.8   43.6   in 2007   9.2   in 1981  
Month Avg Min Dew Point   29.4   14.1   15.8   +13.5   29.4   in 2023   -10.3   in 1981  
Month Average Dew Point   35.5   19.3   23.9   +11.6   35.5   in 2023   -0.6   in 1981  
Precipitation   .94   .00   .12   +.82   1.62   in 1948            
One Hour   .30   .00           .30   in 2023            
Hourly Rate   2.09   .00           2.40   in 2018            
Month Precipitation   2.49   1.41   1.58   +.91   5.05   in 1979   .09   in 1984  
Year Precipitation   2.49   1.41   1.58   +.91   5.05   in 1979   .09   in 1984  
Snow   0.0   0.0   0.3   -0.3   6.0   in 1964       in    
Snow Depth   0   0           18   in 1904       in    
Month Snow   T   4.5   3.9   -3.9   25.8   in 1996   0.0   in 2007  
Season Snow   1.5   5.3   11.0   -9.5   41.6   in 1996   0.2   in 1914  
    January 13, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   97%   87%   +12%   100%   in 2013   43%   in 1981  
Minimum Humidity   88%   66%   56%   +32%   100%   in 2005   24%   in 1981  
Average Humidity   94%   82%   71%   +22%   100%   in 2005   34%   in 1981  
Maximum Barometer   29.78   30.09   30.17   -00.39   30.84   in 1968   29.49   in 1956  
Minimum Barometer   29.54   29.88   29.83   -00.29   30.56   in 1984   29.15   in 2002  
Average Barometer   29.66   29.99   30.00   -00.34   30.66   in 1984   29.44   in 2002  
Average Wind   13.0   2.7   8.2   +4.8   16.0   in 2018   2.6   in 1966  
Direction   S   ESE   WNW       NNW W
High Wind Gust   36   15   26   +10   51   in 2002   12   in 1968  
Direction   SSW   SSE   NW       WNW N
Maximum Water Temp   46.4   43.0   41.8   +4.6   48.7   in 2012   37.4   in 2010  
Minimum Water Temp   43.9   38.8   39.5   +4.4   46.3   in 2012   34.5   in 2019  
Average Water Temp   45.2   40.9   40.6   +4.6   47.5   in 2012   36.1   in 2019  
Sunrise/ AM Twilight   7:10:09 AM   6:39:22 AM            
Sunset / PM Twilight   4:37:34 PM   5:08:38 PM            
Length Of Day   9:27:25                          
Special Conditions   Fog                                  
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