Portsmouth Rhode Island Weather Almanac  
Saturday, January 7, 2023  
Cloudy to Mostly Cloudy PM, Light Winds, Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    January 7, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   44   32   39   +5   58   in 1907   13   in 1912  
Minimum Temperature   32   22   25   +7   43   in 1946   -1   in 1896  
Average Temperature   38   27   32   +6   48   in 2012   8   in 1912  
 Month Avg Max Temperature   47.1   42.7   39.7   +7.4   52.4   in 2007   20.9   in 1918  
Month Avg Min Temperature   36.6   29.4   26.0   +10.6   40.1   in 2007   6.3   in 1904  
Month Average Temperature   42.1   36.3   33.0   +9.1   46.4   in 2007   14.3   in 1904  
High Heat Index                                      
Low Wind Chill   18   7   13   +5             -22   in 2018  
Heating Degree Days   27   38   33   -6   57   in 1912   17   in 2012  
Month HDD   160   201   224   -64   355   in 1904   130   in 2007  
Season HDD   1853   1757   2094   -241   2797   in 1918   1551   in 2016  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   38   29   32   +6   53   in 1995   -9   in 1973  
Minimum Dew Point   30   11   16   +14   37   in 1998   -14   in 1973  
Average  Dew Point   34   20   24   +10   44   in 1998   -12   in 1973  
 Month Avg Max Dew Point   44.4   39.9   32.4   +12.0   48.1   in 2007   12.6   in 2018  
Month Avg Min Dew Point   34.0   21.1   16.6   +17.4   34.0   in 2023   -9.1   in 1981  
Month Average Dew Point   39.3   25.9   24.6   +14.7   39.7   in 2007   3.5   in 1981  
Precipitation   .00   .24   .13   -.13   1.94   in 1958            
One Hour   .00   .00           .45   in 1958            
Hourly Rate   .00   .00           .92   in 2009            
Month Precipitation   .82   1.31   .85   -.03   3.54   in 1919   .00   in 1928  
Year Precipitation   .82   1.31   .85   -.03   3.54   in 1919   .00   in 1928  
Snow   0.0   4.5   0.3   -0.3   12.7   in 2017       in    
Snow Depth   0   0           15   in 1948       in    
Month Snow   0.0   4.5   2.1   -2.1   15.9   in 2017   0.0   in 2023  
Season Snow   1.5   5.3   9.2   -7.7   32.1   in 1905   T   in 2000  
    January 7, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   98%   96%   86%   +12%   100%   in 2005   41%   in 1973  
Minimum Humidity   72%   59%   56%   +16%   96%   in 1998   23%   in 2016  
Average Humidity   85%   78%   71%   +14%   98%   in 1998   34%   in 1973  
Maximum Barometer   30.16   30.07   30.08   +00.08   30.69   in 1991   29.55   in 1955  
Minimum Barometer   30.03   29.60   29.72   +00.31   30.29   in 2018   28.96   in 1958  
Average Barometer   30.10   29.84   29.90   +00.19   30.43   in 1991   29.34   in 1969  
Average Wind   5.5   12.3   8.9   -3.4   23.3   in 1952   1.2   in 1963  
Direction   NW   NW   WNW       N SE
High Wind Gust   18   36   27   -9   61   in 1905   12   in 2016  
Direction   NW   NW   WNW       SE SW
Maximum Water Temp   45.1   45.7   42.1   +3.0   50.9   in 2007   32.1   in 2018  
Minimum Water Temp   43.2   43.5   39.4   +3.8   49.5   in 2007   28.1   in 2018  
Average Water Temp   44.2   44.6   40.7   +3.4   50.2   in 2007   30.1   in 2018  
Sunrise/ AM Twilight   7:11:37 AM   6:40:34 AM            
Sunset / PM Twilight   4:31:13 PM   5:02:38 PM            
Length Of Day   9:19:36                          
Special Conditions   None                              
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