Portsmouth Rhode Island Weather Almanac  
Wednesday, September 6, 2023  
Partly Cloudy early, Clear Day, Partly Cloudy PM, Record Breaking Temps/Dew Points  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    September 6, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   88   66   75   +13   88   in 2023   58   in 1963  
Minimum Temperature   71   60   60   +11   72   in 2018   47   in 1902  
Average Temperature   80   63   68   +12   80   in 2023   56   in 1963  
 Month Avg Max Temperature   82.5   76.8   75.8   +6.7   86.2   in 1898   66.8   in 1994  
Month Avg Min Temperature   63.2   59.5   60.8   +2.3   70.5   in 1898   51.5   in 1893  
Month Average Temperature   73.0   68.3   68.3   +4.7   78.7   in 1898   60.8   in 1994  
High Heat Index   101   68   69   +32   101   in 2023            
Low Wind Chill                             44   in 1902  
Heating Degree Days   0   2   1   -1   9   in 1963   0   in 2023  
Month Heating DD   1   2   6   -5   29   in 1994   0   in 2021  
Season Heating DD   1   2   6   -5   45   in 1994   0   in 2020  
Cooling Degree Days   15   0   4   +11   15   in 2023   0   in 2022  
Month Cooling DD   49   22   24   +25   82   in 1898   0   in 1976  
Year Cooling DD   621   733   561   +60   806   in 2020   272   in 1902  
Maximum Dew Point   79   65   65   +14   79   in 2023   45   in 1984  
Minimum Dew Point   70   59   56   +14   71   in 1953   38   in 1984  
Average  Dew Point   75   62   60   +15   75   in 2023   42   in 1984  
 Month Avg Max Dew Point   71.0   64.5   65.3   +5.7   73.2   in 1973   54.3   in 1984  
Month Avg Min Dew Point   61.3   54.2   56.5   +4.8   67.0   in 1973   44.3   in 1984  
Month Average Dew Point   66.3   59.7   60.8   +5.5   70.1   in 1973   49.3   in 1984  
Precipitation   .00   .41   .11   -.11   1.71   in 2011            
One Hour Rain   .00   .09           .84   in 1979            
Half Hour Rain   .00   .00           .41   in 2011            
Hourly Rain Rate   .00   .90           5.14   in 2008            
Month Precipitation   .00   1.08   .66   -.66   6.53   in 2021   .00   in 2023  
Year Precipitation   35.62   26.50   29.94   +5.68   45.30   in 1998   16.55   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  
    September 6, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   99%   93%   +6%   100%   in 2017   73%   in 1970  
Minimum Humidity   70%   93%   60%   +10%   93%   in 2022   36%   in 2002  
Average Humidity   85%   96%   76%   +8%   96%   in 2022   58%   in 1984  
Maximum Barometer   29.88   30.12   30.12   -00.24   30.57   in 1992   29.85   in 2021  
Minimum Barometer   29.76   30.06   29.91   -00.15   30.40   in 2000   29.24   in 1979  
Average Barometer   29.82   30.09   30.01   -00.19   30.45   in 2000   29.61   in 1979  
Average Wind   4.5   5.3   5.8   -1.3   13.5   in 1979   1.3   in 1965  
Direction   SSW   ENE   SSW       S SSE
High Wind Gust   13   14   20   -7   46   in 1979   10   in 1989  
Direction   SSE   ENE   SSE       SSW NE
Maximum Water Temp   71.4   71.8   70.4   +1.0   74.2   in 2018   66.9   in 2017  
Minimum Water Temp   70.9   69.1   67.9   +3.0   71.9   in 2018   64.9   in 2000  
Average Water Temp   71.2   70.5   69.2   +2.0   73.1   in 2018   66.1   in 2017  
Sunrise/ AM Twilight   6:15:59 AM   5:48:51 AM            
Sunset / PM Twilight   7:10:09 PM   7:38:03 PM            
Length Of Day   12:54:10                          
Special Conditions   Fog                                  
Comments   Record High Temps and Dew Points  
Hour-by-Hour Weather For September 6, 2023            
Climate Weather for September 6            
Weather History For September 6            
Weather Calendar            
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