Portsmouth Rhode Island Weather Almanac  
Tuesday, September 27, 2022  
Partly Cloudy & Fog early, then Clear and Seasonal Temps  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    September 27, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   71   75   69   +2   82   in 2014   54   in 1893  
Minimum Temperature   57   53   54   +3   66   in 2007   36   in 1957  
Average Temperature   64   64   62   +2   72   in 2017   48   in 1957  
 Month Avg Max Temperature   73.4   75.6   72.6   +0.8   78.7   in 1961   67.6   in 1963  
Month Avg Min Temperature   58.3   61.0   57.9   +0.4   63.2   in 1961   52.0   in 1956  
Month Average Temperature   66.0   68.6   65.2   +0.8   71.1   in 1961   60.3   in 1963  
High Heat Index   71   75   70   +1   85   in 2017            
Low Wind Chill                             32   in 1957  
Heating Degree Days   1   1   5   -4   17   in 1957   0   in 2020  
Month HDD   38   3   58   -20   156   in 1956   3   in 2021  
Season HDD   38   3   65   -27   156   in 1956   3   in 2021  
Cooling Degree Days   0   0   1   -1   7   in 2017   0   in 2022  
Month CDD   66   100   63   +3   180   in 1961   7   in 1893  
Year CDD   770   783   600   +170   856   in 2020   285   in 1902  
Maximum Dew Point   63   63   60   +3   76   in 2017   29   in 1957  
Minimum Dew Point   50   50   50   +0   65   in 1993   17   in 1957  
Average  Dew Point   57   57   55   +2   70   in 2017   23   in 1957  
 Month Avg Max Dew Point   63.9   67.3   63.1   +0.8   67.7   in 2018   55.0   in 1966  
Month Avg Min Dew Point   54.0   57.4   53.3   +0.6   58.5   in 1961   44.4   in 1984  
Month Average Dew Point   59.2   62.6   58.2   +1.0   63.3   in 2018   50.1   in 1984  
Precipitation   .00   .00   .14   -.14   1.49   in 1962            
One Hour   .00   .00           .29   in 1998            
Hourly Rate   .00   .00           2.22   in 2008            
Month Precipitation   4.39   9.45   3.38   +1.01   10.67   in 1961   .31   in 1959  
Year Precipitation   29.81   38.55   32.66   -2.85   48.49   in 1998   17.64   in 1957  
Snow   #N/A   #N/A   0.0   #N/A       in         in    
Snow Depth   #N/A   #N/A               in         in    
Month Snow   0.0   0.0   0.0   +0.0       in         in    
Season Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A   #N/A   in #N/A  
    September 27, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   98%   89%   93%   +5%   100%   in 2017   59%   in 1957  
Minimum Humidity   54%   59%   61%   -7%   97%   in 1993   26%   in 1957  
Average Humidity   76%   74%   77%   -1%   99%   in 1993   43%   in 1957  
Maximum Barometer   29.93   29.96   30.13   -00.20   30.48   in 2015   29.76   in 1977  
Minimum Barometer   29.78   29.84   29.89   -00.11   30.33   in 1996   28.81   in 1985  
Average Barometer   29.86   29.90   30.01   -00.15   30.40   in 2015   29.54   in 1985  
Average Wind   5.3   7.3   6.1   -0.8   23.8   in 1985   1.0   in 1990  
Direction   SSW   SW   SSW       S ESE
High Wind Gust   25   31   22   +3   77   in 1985   9   in 2017  
Direction   SSW   SW   SW       S SSE
Maximum Water Temp   67.1   70.5   66.9   +0.2   70.5   in 2021   63.0   in 1996  
Minimum Water Temp   66.0   69.4   65.1   +0.9   69.4   in 2021   61.0   in 2000  
Average Water Temp   66.6   70.0   66.0   +0.5   70.0   in 2021   62.5   in 2000  
Sunrise/ AM Twilight   6:37:41 AM   6:10:47 AM            
Sunset / PM Twilight   6:33:35 PM   7:01:22 PM            
Length Of Day   11:55:54                          
Special Conditions   Fog                                  
Comments   Moderate Drought  
Hour-by-Hour Weather For September 27, 2022            
Climate Weather for September 27            
Weather History For September 27            
Weather Calendar            
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