Portsmouth Rhode Island Weather Almanac  
Sunday, September 24, 2023  
Cloudy, Rainy, Foggy, Windy and Continued Cool  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    September 24, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   62   66   70   -8   82   in 2017   55   in 1992  
Minimum Temperature   59   47   55   +4   67   in 2011   39   in 1953  
Average Temperature   61   57   62   -1   73   in 1984   48   in 1992  
 Month Avg Max Temperature   76.8   73.8   73.0   +3.7   79.6   in 1983   67.7   in 1963  
Month Avg Min Temperature   62.4   58.7   58.3   +4.2   63.4   in 1961   52.1   in 1962  
Month Average Temperature   69.9   66.4   65.6   +4.3   71.5   in 1961   60.6   in 1963  
High Heat Index   63   65   69   -6   84   in 1984            
Low Wind Chill       42                     36   in 1992  
Heating Degree Days   4   8   4   +0   17   in 1992   0   in 2021  
Month Heating DD   19   32   45   -26   118   in 1963   2   in 2021  
Season Heating DD   19   32   45   -26   149   in 1956   2   in 2021  
Cooling Degree Days   0   0   1   -1   8   in 1984   0   in 2023  
Month Cooling DD   136   66   60   +76   170   in 1961   7   in 1893  
Year Cooling DD   708   777   597   +111   843   in 2020   283   in 1902  
Maximum Dew Point   62   48   61   +1   72   in 2021   37   in 1950  
Minimum Dew Point   58   37   50   +8   66   in 2011   26   in 1963  
Average  Dew Point   60   43   56   +4   69   in 2011   33   in 1963  
 Month Avg Max Dew Point   68.3   63.9   63.4   +4.8   68.3   in 2023   55.5   in 1984  
Month Avg Min Dew Point   60.0   54.3   53.8   +6.3   60.0   in 2023   44.8   in 1984  
Month Average Dew Point   64.3   59.4   58.5   +5.8   64.3   in 2023   50.2   in 1984  
Precipitation   .36   .00   .13   +.23   2.26   in 1975            
One Hour Rain   .05   .00           .40   in 2019            
Half Hour Rain   .04   .00           .29   in 2019            
Hourly Rain Rate   .46   .00           1.82   in 2019            
Month Precipitation   4.96   4.01   2.97   +1.99   9.58   in 1960   .31   in 1959  
Year Precipitation   40.58   29.43   32.25   +8.33   48.03   in 1998   17.64   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 24, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   90%   91%   +8%   100%   in 2017   70%   in 1950  
Minimum Humidity   97%   47%   57%   +40%   98%   in 1973   32%   in 1963  
Average Humidity   98%   69%   74%   +24%   99%   in 1973   55%   in 1988  
Maximum Barometer   30.13   29.92   30.15   -00.02   30.61   in 1953   29.69   in 1966  
Minimum Barometer   30.02   29.83   29.94   +00.08   30.41   in 2008   29.43   in 1987  
Average Barometer   30.08   29.88   30.04   +00.03   30.49   in 2014   29.59   in 1964  
Average Wind   10.5   10.3   6.2   +4.3   13.0   in 1966   1.9   in 1994  
Direction   NE   NW   WNW       W SE
High Wind Gust   23   32   21   +2   39   in 1931   10   in 2017  
Direction   NE   NW   NNE       NW NNE
Maximum Water Temp   66.2   71.8   67.2   -1.0   71.8   in 2021   63.8   in 2013  
Minimum Water Temp   63.1   70.5   65.3   -2.2   70.5   in 2021   61.9   in 1997  
Average Water Temp   64.7   71.2   66.2   -1.6   71.2   in 2021   62.9   in 1997  
Sunrise/ AM Twilight   6:34:19 AM   6:07:40 AM            
Sunset / PM Twilight   6:39:10 PM   7:06:33 PM            
Length Of Day   12:04:51                          
Special Conditions   Fog                                  
Comments   Remnants Of TS Ophelia  
Hour-by-Hour Weather For September 24, 2023            
Climate Weather for September 24            
Weather History For September 24            
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