Portsmouth Rhode Island Weather Almanac  
Wednesday, September 21, 2022  
Cloudy, Light Rain early to Partly Cloudy PM, Light Winds, Seasonal Temperatures  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    September 21, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   68   77   70   -2   88   in 1914   57   in 1993  
Minimum Temperature   57   52   56   +1   69   in 1989   36   in 1956  
Average Temperature   63   65   63   +0   75   in 1989   48   in 1956  
 Month Avg Max Temperature   74.8   75.7   73.5   +1.3   81.1   in 1983   68.4   in 1913  
Month Avg Min Temperature   59.8   60.8   58.7   +1.1   63.6   in 1915   53.0   in 1984  
Month Average Temperature   67.5   68.5   66.0   +1.4   71.8   in 1961   61.8   in 1963  
High Heat Index   69   78   71   -2   84   in 1989            
Low Wind Chill                             32   in 1956  
Heating Degree Days   2   0   3   -1   17   in 1956   0   in 2021  
Month HDD   14   2   35   -21   96   in 1956   0   in 1971  
Season HDD   14   2   42   -28   96   in 1956   0   in 1971  
Cooling Degree Days   0   0   1   -1   10   in 1989   0   in 2022  
Month CDD   66   76   57   +9   158   in 1961   7   in 1893  
Year CDD   770   759   594   +176   840   in 2020   282   in 1902  
Maximum Dew Point   62   67   62   +0   71   in 2014   37   in 1962  
Minimum Dew Point   56   50   51   +5   68   in 1989   28   in 1962  
Average  Dew Point   59   59   56   +3   69   in 1989   33   in 1962  
 Month Avg Max Dew Point   65.0   67.0   63.8   +1.2   68.5   in 2018   54.9   in 1984  
Month Avg Min Dew Point   56.0   57.1   54.2   +1.8   60.3   in 2018   44.2   in 1984  
Month Average Dew Point   60.8   62.3   58.9   +1.9   64.6   in 2018   49.5   in 1984  
Precipitation   .01   .00   .13   -.12   6.52   in 1961            
One Hour   .01   .00           .80   in 1961            
Hourly Rate   .00   .00           1.42   in 2011            
Month Precipitation   3.27   8.56   2.58   +.69   9.58   in 1960   .10   in 1946  
Year Precipitation   28.69   37.66   31.86   -3.17   46.35   in 1998   17.53   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 21, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   98%   98%   93%   +5%   100%   in 2016   67%   in 1984  
Minimum Humidity   75%   59%   61%   +14%   93%   in 1986   32%   in 2020  
Average Humidity   87%   79%   77%   +9%   97%   in 1986   51%   in 1984  
Maximum Barometer   29.96   30.41   30.14   -00.18   30.56   in 2020   29.62   in 1976  
Minimum Barometer   29.82   30.28   29.92   -00.10   30.34   in 2020   28.77   in 1938  
Average Barometer   29.89   30.35   30.03   -00.14   30.45   in 2020   29.50   in 1976  
Average Wind   4.5   3.3   6.2   -1.7   22.5   in 1961   1.2   in 1994  
Direction   NW   ENE   SSW       NNE WSW
High Wind Gust   16   16   21   -5   116   in 1938   9   in 1994  
Direction   WSW   S   SSW       SE SSE
Maximum Water Temp   70.5   71.1   68.1   +2.4   71.2   in 2021   65.1   in 2020  
Minimum Water Temp   69.3   69.1   66.1   +3.2   69.3   in 2022   63.7   in 2020  
Average Water Temp   69.9   70.1   67.1   +2.8   70.1   in 2021   64.4   in 2020  
Sunrise/ AM Twilight   6:31:29 AM   6:04:33 AM            
Sunset / PM Twilight   6:43:56 PM   7:11:46 PM            
Length Of Day   12:12:27                          
Special Conditions   None                              
Comments   Extreme  Drought  
Hour-by-Hour Weather For September 21, 2022            
Climate Weather for September 21            
Weather History For September 21            
Weather Calendar            
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