Middletown Rhode Island Weather Almanac
Monday, August 21, 2017
Clear early, Partly Cloudy Day to Clear PM, Light Winds, Warm (Partial Solar Eclipse)
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2017  
    August 21, 2017     Record Record
Observed Daily Data   Observed   2016   Normal Depart   Highest Lowest
Maximum Temperature   83   81   78   +5   92   in 1955   64   in 1956  
Minimum Temperature   62   67   63   -1   74   in 2009   50   in 1913  
Average Temperature   73   74   70   +3   82   in 1955   60   in 1956  
Precipitation   .00   .00   .13   -.13   1.97   in 1997            
One Hour   .00   .00           .88   in 1994            
Snowfall   0.0   0.0   0.0   +0.0   0.0   in              
Snow Depth   0               0   in              
HDD   0   0   0   0   5   in 1956   0   in 2017  
CDD   8   9   6   +2   17   in 1955   0   in 2007  
Maximum Dew Point   68   72   66   +3   77   in 2009   46   in 1969  
Minimum Dew Point   59   62   57   +2   73   in 2009   38   in 1982  
Average  Dew Point   64   67   61   +3   75   in 2009   43   in 1969  
Maximum Humidity   88%   96%   92%   -4%   100%         58%   in 1983  
Minimum Humidity   53%   53%   59%   -6%   95%   in 1961   29%   in 1987  
Average Humidity   71%   75%   75%   -5%   98%   in 1961   48%   in 1983  
Maximum Barometer   30.16   29.96   30.08   +00.08   30.40   in 1926   29.82   in 1955  
Minimum Barometer   30.08   29.78   29.88   +00.20   30.21   in 2000   29.54   in 1988  
Average Barometer   30.12   29.87   29.98   +00.14   30.27   in 1974   29.72   in 1971  
Average Wind   4.0   5.7   5.6   -1.6   14.0   in 1980   1.6   in 1965  
Direction   SW   ESE   SSW       NE         SE        
High Wind Gust   20   17   20   +0   46   in 1997   10   in 1998  
Direction   SW   SE   SSW       ESE         W        
High Heat Index   84   85   78   +6   100   in 1955            
Wind Chill                                      
Maximum Water Temp   69.7   72.9   71.2   -1.4   78.1   in 2003   67.5   in 1997  
Minimum Water Temp   67.0   70.5   68.3   -1.3   72.7   in 2011   64.1   in 2008  
Average Water Temp   68.4   71.7   69.7   -1.4   73.8   in 2011   66.0   in 2008  
Sunrise/ AM Twilight   6:00:AM   5:31:AM            
Sunset / PM Twilight   7:35:PM   8:05:PM            
Length Of Day   13:35                          
Special Conditions   None                                  
Comments   Partial Solar Eclipse start 1:27pm, peak 2:47 pm, end 4pm  
    August 21, 2017     Record Record
Month-to-Date Summary   Observed   2016   Normal Depart   Highest Lowest
 Avg Maximum Temperature   79.1   82.9   78.8   +0.3   84.6   in 1937   72.6   in 1964  
Avg Minimum Temperature   63.9   66.8   64.1   -0.2   69.1   in 1988   55.9   in 1964  
Average Temperature   71.5   74.8   71.5   -0.0   76.6   in 1937   64.3   in 1964  
Total Precipitation   1.65   .75   2.51   -.86   9.62   in 1946   .16   in 1993  
Total Snowfall   0.0   0.0   0.0   +0.0       in         in    
Total HDD   0   0   0   +0   26   in 1964   0   in 2017  
Total CDD   142   211   148   -6   250   in 1937   17   in 1964  
Avg Maximum Dew Point   68.5   71.4   67.6   +0.9   71.9   in 2003   57.9   in 1964  
Avg Minimum Dew Point   59.6   63.5   59.5   +0.1   66.8   in 2003   47.4   in 1964  
Average  Dew Point   64.0   67.5   63.5   +0.5   69.4   in 2003   52.6   in 1964  
    August 21, 2017     Record Record
Year-to-Date Summary   Observed   2016   Normal   Depart   Highest Lowest
Total Precipitation   27.73   18.41   30.19   -2.46   43.94   in 1983   15.70   in 1957  
Total Snowfall (since Jul 1)   0.0   0.0   0.0   +0.0                      
Total HDD (since Jul 1)   9   1   3   +6   34   in 1914   0   in 2015  
Total CDD (since Jan 1)   439   580   452   -13   635   in 2010   210   in 1902  
                             
Hour-by-Hour Weather For August 21, 2017  
Climate Weather for August 21  
Weather History For August 21  
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