Middletown Rhode Island Weather Almanac
Monday, May 21, 2018
Clear, Warm, Very Comfortable
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2018  
    May 21, 2018     Record Record
Observed Daily Data   Observed   2017   Normal   Depart   Highest Lowest
Maximum Temperature   70   66   66   +4   85   in 1921   47   in 1929  
Minimum Temperature   52   44   49   +3   64   in 1903   38   in 2002  
Average Temperature   61   55   58   +3   73   in 1996   45   in 1990  
Precipitation   .00   .00   .11   -.11   1.10   in 1986            
One Hour   .00   .00           .48   in 1986            
Snow   0.0   0.0   0.0   +0.0   0.0   in              
Snow Depth   0   0               in              
HDD   4   10   7   -3   20   in 1990   0   in 2013  
CDD   0   0   0   +0   8   in 1996            
Maximum Dew Point   61   48   53   +8   70   in 1996   32   in 1967  
Minimum Dew Point   42   37   43   -1   58   in 1986   25   in 1967  
Average  Dew Point   52   43   48   +4   63   in 1996   29   in 1967  
Maximum Humidity   95%   92%   91%   +4%   100%   in 2013   60%   in 1967  
Minimum Humidity   38%   34%   54%   -16%   96%   in 1954   14%   in 1992  
Average Humidity   67%   63%   72%   -6%   98%   in 1954   45%   in 1967  
Maximum Barometer   30.18   30.38   30.06   +00.12   30.46   in 1987   29.53   in 2008  
Minimum Barometer   30.01   30.26   29.84   +00.17   30.26   in 2017   29.12   in 1973  
Average Barometer   30.10   30.32   29.95   +00.15   30.32   in 2017   29.40   in 1973  
Average Wind   5.9   4.1   6.2   -0.3   16.3   in 1985   2.1   in 1994  
Direction   N   SSE   SSW       SSW         N        
High Wind Gust   16   17   22   -6   37   in 1956   12   in 2016  
Direction   SSE   SSE   SSW       NW         SSW        
High Heat Index                   84   in 1996            
Wind Chill                             37   in 2002  
Maximum Water Temp   55.6   60.4   57.1   -1.5   60.6   in 2013   52.7   in 2005  
Minimum Water Temp   51.3   54.7   53.5   -2.2   57.9   in 1998   49.2   in 2005  
Average Water Temp   53.5   57.6   55.3   -1.9   59.1   in 1998   51.0   in 2005  
Sunrise/ AM Twilight   5:21:AM   4:49:AM            
Sunset / PM Twilight   8:04:PM   8:36:PM            
Length Of Day   14:43                          
Special Conditions   Fog                                  
Comments      
    May 21, 2018     Record Record
Month-to-Date Summary   Observed   2017   Normal Depart Highest Lowest
 Avg Maximum Temperature   64.8   63.0   63.2   +1.6   69.1   in 1918   56.7   in 1966  
Avg Minimum Temperature   49.9   47.8   46.6   +3.2   49.9   in 2018   41.4   in 1956  
Average Temperature   57.3   55.4   54.8   +2.5   59.0   in 1930   49.4   in 1966  
Total Precipitation   1.63   3.45   2.49   -.86   6.96   in 2006   .09   in 2001  
Total Snow   0.0   0.0   T   +0.0   1.7   in 1977   0.0   in    
Total HDD   156   213   214   -58   324   in 1966   127   in 1918  
Total CDD   0   16   0   +0   27   in 2001   0   in 2018  
Avg Maximum Dew Point   55.8   51.5   50.3   +5.5   57.2   in 2004   42.0   in 1967  
Avg Minimum Dew Point   44.7   40.7   38.2   +6.5   46.7   in 1953   30.0   in 1967  
Average  Dew Point   50.2   46.1   44.3   +6.0   50.7   in 1953   36.0   in 1967  
    May 21, 2018     Record Record
Year-to-Date Summary   Observed   2017   Normal Depart Highest Lowest
Total Precipitation   22.44   19.64   19.40   +3.04   34.08   in 1983   10.81   in 1927  
Total Snow (since Jul 1 17)   45.6   41.4   31.8   +13.8   84.1   in 1996   5.0   in 1998  
Total HDD (since Jul 1 17)   5257   4993   5517   -260   6467   in 1905   4465   in 2012  
Total CDD (since Jan 1)   0   16   0   +0   27   in 2001   0   in 2018  
                             
Hour-by-Hour Weather For May 21, 2018  
Climate Weather for May 21  
Weather History For May 21  
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