Portsmouth Rhode Island Weather Almanac  
Thursday, July 22, 2021  
Clear to Mostly Cloudy PM, Cooler and Less Humid  
Climate Normal Period Climate Record Period  
1991- 2020   1893 - 2021  
    July 22, 2021   Record   Record  
Observed Daily Data   2021   2020   Norm   Depart   Highest   Lowest  
Maximum Temperature   80   87   80   +0   96   in 1926   69   in 1894  
Minimum Temperature   63   68   65   -2   73   in 1994   55   in 1937  
Average Temperature   72   78   73   -1   84   in 1926   64   in 1958  
 Month Avg Max Temperature   78.8   81.6   79.6   -0.9   85.1   in 1955   74.5   in 1902  
Month Avg Min Temperature   65.4   65.7   64.4   +1.0   71.0   in 2013   58.5   in 1962  
Month Average Temperature   72.4   74.0   72.4   +0.0   77.3   in 2013   67.7   in 1909  
HDD   0   0   0   +0   1   in 1958   0   in    
Month HDD   9   0   3   +6   23   in 1914   0   in 2020  
Season HDD   9   0   3   +6   23   in 1914   0   in 2020  
CDD   7   13   8   -1   19   in 1926   0   in 1958  
Month CDD   172   197   163   +9   270   in 2013   66   in 1909  
Year CDD   334   330   256   +78   386   in 2010   98   in 1902  
Maximum Dew Point   64   74   69   -5   80   in 2011   57   in 1970  
Minimum Dew Point   56   65   61   -5   70   in 2006   45   in 1977  
Average  Dew Point   60   70   65   -5   74   in 2011   54   in 1993  
 Month Avg Max Dew Point   71.1   71.0   68.4   +2.7   74.0   in 2013   61.6   in 1962  
Month Avg Min Dew Point   62.7   63.0   60.0   +2.8   68.5   in 2013   51.6   in 1965  
Month Average Dew Point   66.9   67.0   64.2   +2.7   71.3   in 2013   56.7   in 1965  
Precipitation   .00   .21   .09   -.09   2.58   in 1947            
One Hour   .00   .21           1.24   in 2019            
Hourly Rate   .00   1.57           10.67   in 2019            
Month Precipitation   3.53   1.30   2.18   +1.35   6.32   in 2009   .16   in 2002  
Year Precipitation   22.59   22.32   24.75   -2.16   40.78   in 1998   13.64   in 1957  
Snow   0.0   0.0   0.0   +0.0   0.0   in              
Snow Depth   0   0           0   in              
Month Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A   #N/A   in    
Season Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A   #N/A   in #N/A  
    July 22, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   85%   95%   93%   -8%   100%   in 2018   81%   in 2015  
Minimum Humidity   45%   51%   59%   -14%   93%   in 2003   35%   in 1977  
Average Humidity   65%   73%   76%   -11%   97%   in 2003   60%   in 1970  
Maximum Barometer   30.06   30.08   30.03   +00.03   30.38   in 1989   29.63   in 1983  
Minimum Barometer   29.90   29.98   29.86   +00.04   30.13   in 2012   29.43   in 1983  
Average Barometer   29.98   30.03   29.94   +00.04   30.17   in 1989   29.53   in 1983  
Average Wind   5.9   3.3   6.0   -0.1   13.8   in 1983   0.9   in 1990  
Direction   NNW   S   S       N         SSE        
High Wind Gust   20   16   21   -1   40   in 2019   11   in 2017  
Direction   NW   SSW   SSW       NNE         NW        
High Heat Index   80   94   83   -3   112   in 2011            
Low Wind Chill                             #N/A   in #N/A  
Maximum Water Temp   74.5   67.6   71.4   +3.1   74.9   in 2010   67.3   in 1997  
Minimum Water Temp   72.7   62.8   67.8   +4.9   72.8   in 2010   62.8   in 2020  
Average Water Temp   73.6   65.2   69.6   +4.0   73.8   in 2010   65.2   in 2020  
Sunrise/ AM Twilight   5:31:36 AM   4:59:34 AM            
Sunset / PM Twilight   8:11:56 PM   8:43:57 PM            
Length Of Day   14:40:20                          
Special Conditions   None                              
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Hour-by-Hour Weather For July 22, 2021            
Climate Weather for July 22            
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