Portsmouth Rhode Island Weather Almanac  
Monday, June 14, 2021  
Partly Cloudy early then Rain and Fog, Light Winds and Cooler  
Climate Normal Period Climate Record Period  
1991- 2020   1893 - 2021  
    June 14, 2021   Record   Record  
Observed Daily Data   2021   2020   Norm   Depart   Highest   Lowest  
Maximum Temperature   69   73   73   -4   92   in 1956   56   in 1951  
Minimum Temperature   57   51   57   +0   66   in 1984   45   in 1912  
Average Temperature   63   62   65   -2   78   in 1956   54   in 1982  
 Month Avg Max Temperature   76.1   73.9   71.4   +4.8   78.5   in 1925   60.8   in 1907  
Month Avg Min Temperature   57.9   55.9   55.1   +2.8   59.9   in 2008   47.2   in 1907  
Month Average Temperature   67.4   65.2   63.4   +4.0   69.0   in 1899   54.1   in 1907  
HDD   2   3   1   +1   11   in 1982   0   in 2018  
Month HDD   15   25   37   -22   152   in 1907   2   in 1899  
Season HDD   5060   5117   5465   -405   6601   in 1905   4531   in 2012  
CDD   0   0   2   -2   13   in 1956   0   in    
Month CDD   48   28   19   +29   80   in 1984   0   in 1998  
Year CDD   65   36   30   +29   80   in 1984   0   in 1972  
Maximum Dew Point   64   55   62   +2   74   in 2005   47   in 1985  
Minimum Dew Point   53   43   53   +0   64   in 1999   29   in 1958  
Average  Dew Point   59   49   57   +2   67   in 2001   41   in 1978  
 Month Avg Max Dew Point   65.3   60.8   60.4   +4.9   65.5   in 1996   50.0   in 1988  
Month Avg Min Dew Point   54.2   51.1   50.5   +3.7   56.1   in 2005   41.7   in 1988  
Month Average Dew Point   59.8   55.5   55.4   +4.4   60.6   in 2005   45.9   in 1988  
Precipitation   .32   .00   .12   +.20   1.76   in 1998            
One Hour   .08   .00           .94   in 1998            
Hourly Rate   .96   .00           1.72   in 2004            
Month Precipitation   .56   1.16   1.65   -1.09   8.29   in 1982   T   in 1949  
Year Precipitation   17.56   20.37   20.69   -3.13   36.73   in 1983   12.64   in 1957  
Snow   0.0   0.0   #####   #####   0.0   in              
Snow Depth   0   0           43996   in              
Month Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A   #N/A   in    
Season Snow   27.7   12.9   33.5   -5.8   84.1   in 1996   5.0   in 1998  
    June 14, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   98%   82%   93%   +5%   100%   in 2018   69%   in 1991  
Minimum Humidity   74%   46%   58%   +16%   94%   in 1998   23%   in 1958  
Average Humidity   86%   64%   75%   +11%   97%   in 1998   50%   in 1991  
Maximum Barometer   29.97   30.39   30.01   -00.04   30.39   in 2020   29.57   in 1959  
Minimum Barometer   29.80   30.26   29.81   -00.01   30.26   in 2020   29.38   in 1958  
Average Barometer   29.89   30.33   29.91   -00.03   30.33   in 2020   29.50   in 1998  
Average Wind   4.1   5.2   5.9   -1.8   13.1   in 1978   1.9   in 2006  
Direction   SSE   ENE   S       WNW         SSW        
High Wind Gust   15   21   21   -6   36   in 1978   10   in 1968  
Direction   S   NE   S       WNW         S        
High Heat Index   70   73   73   -3   96   in 2005            
Low Wind Chill                             45   in 1912  
Maximum Water Temp   65.5   59.4   63.2   +2.3   68.5   in 2001   57.4   in 1998  
Minimum Water Temp   60.8   56.5   59.6   +1.2   65.3   in 2007   55.4   in 2006  
Average Water Temp   63.2   58.0   61.4   +1.7   65.9   in 2007   56.4   in 1998  
Sunrise/ AM Twilight   5:10:46 AM   4:36:52 AM            
Sunset / PM Twilight   8:20:46 PM   8:54:40 PM            
Length Of Day   15:10:00                          
Special Conditions   Fog                                  
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