Portsmouth Rhode Island Weather Almanac  
Saturday, September 23, 2023  
Cloudy, Moderate Rain and Fog, Windy and Very Cool  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    September 23, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   60   61   70   -10   86   in 1980   54   in 1963  
Minimum Temperature   55   49   55   +0   69   in 2021   35   in 1904  
Average Temperature   58   55   63   -5   75   in 1980   47   in 1904  
 Month Avg Max Temperature   77.4   74.1   73.2   +4.2   80.1   in 1983   67.9   in 1963  
Month Avg Min Temperature   62.6   59.2   58.4   +4.2   63.4   in 1961   52.3   in 1962  
Month Average Temperature   70.3   66.8   65.8   +4.5   71.6   in 1961   61.0   in 1963  
High Heat Index   61   62   70   -9   87   in 1959            
Low Wind Chill                             29   in 1904  
Heating Degree Days   7   10   3   +4   18   in 1904   0   in 2021  
Month Heating DD   15   24   41   -26   110   in 1956   2   in 2021  
Season Heating DD   15   24   41   -26   141   in 1956   2   in 2021  
Cooling Degree Days   0   0   1   -1   10   in 1980   0   in 2023  
Month Cooling DD   136   66   59   +77   166   in 1961   7   in 1893  
Year Cooling DD   708   777   596   +112   841   in 2020   283   in 1902  
Maximum Dew Point   60   52   61   -1   73   in 1989   43   in 1963  
Minimum Dew Point   52   38   51   +1   67   in 2021   30   in 1963  
Average  Dew Point   56   45   56   +0   70   in 2021   37   in 1963  
 Month Avg Max Dew Point   68.5   64.6   63.5   +5.0   68.5   in 2023   55.1   in 1984  
Month Avg Min Dew Point   60.1   55.0   53.9   +6.2   60.1   in 2023   44.1   in 1984  
Month Average Dew Point   64.5   60.1   58.7   +5.9   64.5   in 2023   49.6   in 1984  
Precipitation   .75   .00   .13   +.62   2.25   in 1919            
One Hour Rain   .16   .00           1.40   in 2002            
Half Hour Rain   .11   .00           .18   in 2011            
Hourly Rain Rate   .46   .00           4.50   in 2011            
Month Precipitation   4.60   4.01   2.84   +1.76   9.58   in 1960   .13   in 1946  
Year Precipitation   40.22   29.43   32.12   +8.10   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 23, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   87%   93%   +6%   100%   in 2017   60%   in 1983  
Minimum Humidity   87%   52%   60%   +27%   96%   in 2011   38%   in 1955  
Average Humidity   93%   70%   76%   +17%   98%   in 1994   50%   in 1983  
Maximum Barometer   30.33   29.87   30.11   +00.22   30.61   in 1904   29.57   in 1950  
Minimum Barometer   30.12   29.67   29.87   +00.25   30.42   in 2008   29.19   in 1966  
Average Barometer   30.23   29.77   29.99   +00.24   30.46   in 2008   29.42   in 1966  
Average Wind   11.2   16.5   6.9   +4.3   16.5   in 2022   2.0   in 1960  
Direction   NE   NNW   N       NNW S
High Wind Gust   23   35   23   +0   45   in 1989   11   in 2018  
Direction   NE   NNW   SSW       SW NE
Maximum Water Temp   68.9   71.8   67.6   +1.3   71.8   in 2021   64.3   in 2013  
Minimum Water Temp   66.2   70.3   65.5   +0.7   70.3   in 2021   61.9   in 2020  
Average Water Temp   67.6   71.1   66.6   +1.0   71.1   in 2021   63.6   in 2020  
Sunrise/ AM Twilight   6:33:17 AM   6:06:38 AM            
Sunset / PM Twilight   6:40:53 PM   7:08:17 PM            
Length Of Day   12:07:36                          
Special Conditions   Fog                                  
Comments   Remnants Of TS Ophelia  
Hour-by-Hour Weather For September 23, 2023            
Climate Weather for September 23            
Weather History For September 23            
Weather Calendar            
Back To Weather Stat Page            
Home