Portsmouth Rhode Island Weather Almanac
Sunday, June 21, 2020
Partly Cloudy, Dense Fog early, Very Warm and Humid
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    June 21, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   83   68   75   +8   93   in 2012   60   in 1967  
Minimum Temperature   64   60   60   +4   73   in 2012   48   in 1979  
Average Temperature   74   64   67   +7   83   in 2012   56   in 1918  
Precipitation   .00   .45   .10   -.10   1.01   in 1962            
One Hour   .00   .14           .85   in 1955            
Snow   0.0   0.0   0.0   +0.0   0.0   in              
Snow Depth   0   0           44003   in            
HDD   0   1   1   -1   9   in 1918   0   in 2020  
CDD   9   0   3   +6   18   in 2012   0   in 2019  
Maximum Dew Point   71   67   63   +8   73   in 2015   45   in 1968  
Minimum Dew Point   63   53   54   +9   66   in 2012   36   in 1986  
Average  Dew Point   67   60   59   +9   69   in 2012   43   in 1968  
Maximum Humidity   96%   99%   91%   +5%   100%   in 2003   61%   in 1954  
Minimum Humidity   62%   71%   57%   +5%   86%   in 1987   29%   in 1957  
Average Humidity   79%   85%   74%   +5%   93%   in 1987   52%   in 1968  
Maximum Barometer   30.02   29.72   30.00   +00.02   30.52   in 2002   29.56   in 2009  
Minimum Barometer   29.94   29.41   29.80   +00.14   30.37   in 2002   29.41   in 2019  
Average Barometer   29.98   29.57   29.90   +00.08   30.45   in 2002   29.52   in 2009  
Average Wind   5.0   5.8   5.9   -0.9   13.3   in 1956   1.4   in 1989  
Direction   SW   N   SSW       SSW         S        
High Wind Gust   24   26   22   +2   53   in 1955   7   in 1987  
Direction   SW   N   SSW       NW         S        
High Heat Index   88   69   76   +12   100   in 2012            
Wind Chill                             #N/A   in #N/A  
Maximum Water Temp   62.6   64.2   66.3   -3.7   72.0   in 2007   61.1   in 2005  
Minimum Water Temp   59.9   61.4   62.0   -2.1   66.6   in 2007   57.3   in 2006  
Average Water Temp   61.3   62.8   64.2   -2.9   69.3   in 2007   60.2   in 2003  
Sunrise/ AM Twilight   5:11:39 AM   4:37:41 AM            
Sunset / PM Twilight   8:22:42 PM   8:56:41 PM            
Length Of Day   15:11:03                          
Special Conditions   Dense Fog                              
Comments      
    June 21, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   75.3   71.7   72.6   +2.8   78.1   in 1925   65.5   in 1907  
Avg Minimum Temperature   56.8   56.9   56.0   +0.7   59.6   in 2001   50.2   in 1907  
Average Temperature   66.0   64.3   64.1   +1.9   68.6   in 1925   57.9   in 1907  
Total Precipitation   1.16   4.89   2.69   -1.53   8.90   in 1982   .01   in 1949  
Total Snow   0.0   0.0   0.0   +0.0   0.0   in     0.0   in    
Total HDD   28   32   47   -19   159   in 1907   3   in 1899  
Total CDD   56   21   40   +16   96   in 1925   0   in 2003  
Avg Maximum Dew Point   62.3   61.8   60.4   +1.9   65.3   in 1996   53.4   in 1965  
Avg Minimum Dew Point   52.6   51.0   50.7   +1.9   55.5   in 2010   43.5   in 1958  
Average  Dew Point   57.5   56.4   55.6   +1.9   60.1   in 1996   48.8   in 1965  
    June 21, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   20.37   26.80   23.19   -2.82   38.24   in 1998   12.67   in 1957  
Total Snow (since Jul 1 19)   12.9   21.1   32.1   -19.2   84.1   in 1996   5.0   in 1998  
Total HDD (since Jul 1 19)   5120   5522   5619   -499   6619   in 1905   4549   in 2012  
Total CDD (since Jan 1)   64   31   49   +15   106   in 2001   2   in 2003  
                             
Hour-by-Hour Weather For June 21, 2020  
Climate Weather for June 21  
Weather History For June 21  
Weather Calendar  
Back To Weather Stat Page  
Home