Portsmouth Rhode Island Weather Almanac  
Thursday, September 29, 2022  
Clear early, Partly Cloudy Day to Mostly Cloudy PM, Seasonal Temps  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    September 29, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   67   65   68   -1   80   in 1952   55   in 1936  
Minimum Temperature   52   52   54   -2   66   in 2015   35   in 1957  
Average Temperature   60   59   61   -1   73   in 1959   46   in 1914  
 Month Avg Max Temperature   73.0   75.2   72.3   +0.8   78.2   in 1961   67.7   in 1963  
Month Avg Min Temperature   57.8   60.7   57.6   +0.2   62.8   in 1961   52.0   in 1956  
Month Average Temperature   65.7   68.2   64.9   +0.7   70.7   in 1961   60.3   in 1963  
High Heat Index   66   64   68   -2   82   in 1959            
Low Wind Chill                             32   in 1914  
Heating Degree Days   5   6   5   +0   19   in 1914   0   in 2020  
Month HDD   47   9   68   -21   172   in 1956   9   in 2021  
Season HDD   47   9   75   -28   172   in 1956   9   in 2021  
Cooling Degree Days   0   0   1   -1   8   in 1959   0   in 2022  
Month CDD   66   103   65   +1   186   in 1961   7   in 1893  
Year CDD   770   786   602   +168   864   in 2020   288   in 1902  
Maximum Dew Point   54   57   60   -6   71   in 2015   33   in 1981  
Minimum Dew Point   44   45   49   -5   66   in 1959   26   in 1981  
Average  Dew Point   49   51   54   -5   68   in 2015   30   in 1981  
 Month Avg Max Dew Point   63.3   66.9   62.9   +0.4   67.2   in 2018   54.8   in 1966  
Month Avg Min Dew Point   53.4   56.9   53.0   +0.4   57.9   in 2018   44.2   in 1984  
Month Average Dew Point   58.6   62.1   57.9   +0.7   62.9   in 2018   49.6   in 1984  
Precipitation   .00   .00   .14   -.14   2.82   in 2004            
One Hour   .00   .00           .58   in 1974            
Hourly Rate   .00   .00           3.03   in 2006            
Month Precipitation   4.39   9.99   3.66   +.73   10.67   in 1961   .31   in 1959  
Year Precipitation   29.81   39.09   32.94   -3.13   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 29, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   88%   90%   92%   -4%   100%   in 2006   68%   in 1981  
Minimum Humidity   58%   51%   59%   -1%   92%   in 2011   29%   in 1957  
Average Humidity   73%   71%   75%   -2%   95%   in 2012   49%   in 1957  
Maximum Barometer   30.35   29.99   30.13   +00.22   30.57   in 1988   29.61   in 1966  
Minimum Barometer   30.19   29.83   29.89   +00.30   30.30   in 2000   29.18   in 1963  
Average Barometer   30.27   29.91   30.01   +00.26   30.39   in 1988   29.49   in 1997  
Average Wind   7.0   6.8   6.6   +0.4   16.5   in 2001   3.0   in 1965  
Direction   NNW   N   N       NNE NNW
High Wind Gust   21   22   22   -1   38   in 1989   13   in 2018  
Direction   NW   NNW   NNE       SW NW
Maximum Water Temp   66.2   69.6   66.2   +0.0   69.6   in 2021   63.0   in 2010  
Minimum Water Temp   64.9   67.5   64.6   +0.3   67.5   in 2021   60.0   in 2004  
Average Water Temp   65.6   68.6   65.4   +0.1   68.6   in 2021   61.7   in 2000  
Sunrise/ AM Twilight   6:39:46 AM   6:12:52 AM            
Sunset / PM Twilight   6:30:09 PM   6:57:57 PM            
Length Of Day   11:50:23                          
Special Conditions   None                              
Comments   Moderate  Drought  
Hour-by-Hour Weather For September 29, 2022            
Climate Weather for September 29            
Weather History For September 29            
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