Portsmouth Rhode Island Weather Almanac  
Thursday, July 13, 2023  
Partly Cloudy, Light Fog early, Breezy, Warm and Continued Very Humid  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    July 13, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   83   87   80   +3   92   in 1927   63   in 1986  
Minimum Temperature   70   69   65   +5   73   in 2010   54   in 2001  
Average Temperature   77   78   73   +4   79   in 2010   60   in 1986  
 Month Avg Max Temperature   81.8   79.7   79.4   +2.5   85.7   in 1993   72.4   in 1914  
Month Avg Min Temperature   67.6   63.5   64.0   +3.6   70.1   in 2013   57.1   in 1962  
Month Average Temperature   75.0   71.8   72.0   +3.0   76.2   in 1981   65.5   in 1914  
High Heat Index   90   90           98   in 1927            
Low Wind Chill                                      
Heating Degree Days   0   0   0   +0   5   in 1986   0   in 2023  
Month Heating DD   0   0   3   -3   23   in 1914   0   in 2023  
Season Heating DD   0   0   3   -3   23   in 1914   0   in 2023  
Cooling Degree Days   12   13   7   +5   14   in 2010   0   in 2005  
Month Cooling DD   130   89   91   +39   146   in 1981   25   in 1918  
Year Cooling DD   206   184   184   +22   284   in 2010   55   in 1972  
Maximum Dew Point   76   69   69   +7   76   in 2023   54   in 1978  
Minimum Dew Point   69   63   60   +9   71   in 2010   48   in 1971  
Average  Dew Point   73   66   64   +9   74   in 2010   52   in 1978  
 Month Avg Max Dew Point   74.6   67.6   68.0   +6.6   74.6   in 2023   58.1   in 1978  
Month Avg Min Dew Point   66.4   57.8   59.4   +7.0   67.8   in 2013   49.0   in 1962  
Month Average Dew Point   70.5   62.7   63.6   +6.9   70.7   in 2013   53.7   in 1978  
Precipitation   .00   .00   .10   -.10   1.80   in 1898            
One Hour Rain   .00   .00           .46   in 2006            
Hourly Rain Rate   .00   .00           3.60   in 2004            
Month Precipitation   2.63   .30   1.36   +1.27   4.84   in 2009   .00   in 1908  
Year Precipitation   27.11   23.20   23.93   +3.18   40.76   in 1998   13.14   in 1957  
Snow                                      
Snow Depth                                      
Month Snow                                      
Season Snow   0.0   0.0   0.0   +0.0   0.0   in 1996   0.0   in 1998  
    July 13, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   98%   93%   +6%   100%   in 2018   71%   in 1978  
Minimum Humidity   69%   49%   60%   +9%   92%   in 1987   32%   in 1978  
Average Humidity   84%   74%   77%   +7%   96%   in 1987   52%   in 1978  
Maximum Barometer   29.93   29.92   30.02   -00.09   30.31   in 1955   29.57   in 1976  
Minimum Barometer   29.87   29.76   29.83   +00.04   30.20   in 2021   29.23   in 1976  
Average Barometer   29.90   29.84   29.93   -00.03   30.24   in 2021   29.40   in 1976  
Average Wind   7.3   4.2   6.1   +1.2   12.0   in 2008   2.8   in 2005  
Direction   SSW   SSW   SSW       SSE SSE
High Wind Gust   24   14   21   +3   38   in 1996   13   in 2021  
Direction   S   SW   SSW       SE SE
Maximum Water Temp   75.9   70.3   70.5   +5.4   75.9   in 2023   66.6   in 2006  
Minimum Water Temp   73.9   68.5   66.9   +7.0   73.9   in 2023   62.2   in 2006  
Average Water Temp   74.9   69.4   68.7   +6.2   74.9   in 2023   64.4   in 2006  
Sunrise/ AM Twilight   5:22:26 AM   4:51:01 AM            
Sunset / PM Twilight   8:18:50 PM   8:51:18 PM            
Length Of Day   14:56:24                          
Special Conditions   Fog                                  
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