Portsmouth Rhode Island Weather Almanac
Saturday, August 1, 2020
Clear, Light Fog early to Partly Cloudy PM, Light Winds and Hot
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    August 1, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   88   86   79   +9   91   in 1975   65   in 1905  
Minimum Temperature   66   67   66   +0   74   in 1999   54   in 1965  
Average Temperature   77   77   73   +4   82   in 1975   62   in 1905  
Precipitation   .00   .00   .11   -.11   1.98   in 1927            
One Hour   .00   .00           .70   in 1950            
Snow   0.0   0.0   0.0   +0.0   0.0   in              
Snow Depth   0   0           0   in            
HDD   0   0   0   +0   3   in 1905   0   in 2020  
CDD   12   12   8   +4   17   in 1975   0   in 1996  
Maximum Dew Point   73   70   69   +4   79   in 1975   57   in 1964  
Minimum Dew Point   63   57   61   +2   71   in 1979   40   in 1964  
Average  Dew Point   68   64   65   +3   74   in 1975   49   in 1964  
Maximum Humidity   96%   92%   93%   +3%   100%   in 2017   73%   in 1953  
Minimum Humidity   46%   39%   58%   -12%   95%   in 1996   31%   in 1987  
Average Humidity   71%   66%   76%   -5%   98%   in 1996   55%   in 1964  
Maximum Barometer   30.01   30.10   30.04   -00.03   30.37   in 2001   29.71   in 2008  
Minimum Barometer   29.84   30.01   29.85   -00.01   30.25   in 2001   29.44   in 1976  
Average Barometer   29.93   30.06   29.95   -00.02   30.31   in 2001   29.64   in 1976  
Average Wind   4.3   4.2   5.6   -1.3   10.1   in 1984   2.2   in 1996  
Direction   NNW   NNW   SSW       WSW         NNW        
High Wind Gust   25   18   21   +4   38   in 1985   11   in 2002  
Direction   WSW   NNW   SW       N         S        
High Heat Index   95   87   83   +12   102   in 1975            
Wind Chill                             #N/A   in #N/A  
Maximum Water Temp   69.3   74.3   72.0   -2.7   77.0   in 2006   65.8   in 1996  
Minimum Water Temp   64.2   70.8   68.5   -4.3   73.1   in 2013   64.2   in 2020  
Average Water Temp   66.8   72.6   70.3   -3.5   73.7   in 2013   65.5   in 1996  
Sunrise/ AM Twilight   5:40:52 AM   5:09:51 AM            
Sunset / PM Twilight   8:02:12 PM   8:33:13 PM            
Length Of Day   14:21:20                          
Special Conditions   Light Fog                              
Comments      
    August 1, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   88.0   86.0   79.0   +9.0   91.0   in 1975   65.0   in 1905  
Avg Minimum Temperature   66.0   67.0   66.0   +0.0   74.0   in 1999   54.0   in 1965  
Average Temperature   77.0   77.0   72.5   +4.5   82.0   in 1975   62.0   in 1905  
Total Precipitation   .00   .00   .11   -.11   1.98   in 1927   .00   in 2020  
Total Snow   0.0   0.0   0.0   +0.0   0.0   in     0.0   in    
Total HDD   0   0   0   +0   3   in 1905   0   in 2020  
Total CDD   12   12   8   +4   17   in 1975   0   in 1996  
Avg Maximum Dew Point   73.0   70.0   69.0   +4.0   79.0   in 1975   57.0   in 1964  
Avg Minimum Dew Point   63.0   57.0   61.4   +1.6   71.0   in 1979   40.0   in 1964  
Average  Dew Point   68.0   64.0   65.2   +2.8   73.5   in 1975   48.5   in 1964  
    August 1, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   22.38   35.23   27.92   -5.54   41.55   in 1998   14.33   in 1957  
Total Snow (since Jul 1 20)   0.0   0.0   0.0   +0.0   0.0   in     0.0   in    
Total HDD (since Jul 1 20)   0   0   3   -3   3   in 1905   0   in 2020  
Total CDD (since Jan 1)   476   432   312   +164   476   in 2020   135   in 1902  
                             
Hour-by-Hour Weather For August 1, 2020  
Climate Weather for August 1  
Weather History For August 1  
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