Portsmouth Rhode Island Weather Almanac
Thursday, October 1, 2020
Clear early, Partly Cloudy Day to Clear PM, Breezy and Continued Warm
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    October 1, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   72   70   67   +5   84   in 1927   51   in 1992  
Minimum Temperature   60   56   51   +9   67   in 1986   34   in 1992  
Average Temperature   66   63   59   +7   74   in 1986   43   in 1992  
Precipitation   .00   .00   .12   -.12   1.93   in 1984            
One Hour   .00   .00           .57   in 2006            
Snow   #N/A   0.0   0.0   #N/A   0.0   in              
Snow Depth   #N/A   0           44105   in            
HDD   0   2   6   -6   22   in 1992   0   in 2020  
CDD   1   0   1   +0   9   in 1986   0   in 1900  
Maximum Dew Point   64   64   57   +7   71   in 2010   35   in 1992  
Minimum Dew Point   55   50   46   +9   64   in 1959   22   in 1992  
Average  Dew Point   60   57   52   +8   68   in 1959   29   in 1992  
Maximum Humidity   92%   92%   93%   -1%   100%   in 2005   73%   in 1986  
Minimum Humidity   72%   75%   58%   +14%   96%   in 2014   23%   in 1953  
Average Humidity   82%   84%   76%   +6%   97%   in 2014   54%   in 1997  
Maximum Barometer   29.96   30.25   30.12   -00.16   30.55   in 2007   29.76   in 2011  
Minimum Barometer   29.88   29.85   29.89   -00.01   30.44   in 2007   29.24   in 1987  
Average Barometer   29.92   30.05   30.01   -00.09   30.50   in 2007   29.52   in 1987  
Average Wind   8.8   8.7   6.4   +2.4   14.2   in 1984   1.8   in 2005  
Direction   SW   SSW   S       NE         S        
High Wind Gust   27   23   22   +5   42   in 1958   10   in 2004  
Direction   SW   SSW   S       SSW         NNW        
High Heat Index                   86   in 1954            
Wind Chill                             34   in 1992  
Maximum Water Temp   66.9   67.0   65.5   +1.4   68.3   in 2011   61.7   in 2001  
Minimum Water Temp   65.7   65.6   63.8   +1.9   67.4   in 2011   59.9   in 2001  
Average Water Temp   66.3   66.3   64.6   +1.7   67.8   in 2011   60.8   in 2001  
Sunrise/ AM Twilight   6:43:26 AM   6:15:55 AM            
Sunset / PM Twilight   6:25:30 PM   6:53:02 PM            
Length Of Day   11:42:04                          
Special Conditions   None                                  
Comments      
    October 1, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   72.0   70.0   67.0   +5.0   84.0   in 1927   51.0   in 1992  
Avg Minimum Temperature   60.0   56.0   51.0   +9.0   67.0   in 1986   34.0   in 1992  
Average Temperature   66.0   63.0   59.0   +7.0   74.0   in 1986   43.0   in 1992  
Total Precipitation   .00   .00   .12   -.12   1.93   in 1984   .00   in 2020  
Total Snow   0.0   0.0   0.0   +0.0   0.0   in     0.0   in    
Total HDD   0   2   6   -6   22   in 1992   0   in 2020  
Total CDD   1   0   1   +0   9   in 1986   0   in 2019  
Avg Maximum Dew Point   64.0   64.0   57.0   +7.0   71.0   in 2010   35.0   in 1992  
Avg Minimum Dew Point   55.0   50.0   46.1   +8.9   64.0   in 1959   22.0   in 1992  
Average  Dew Point   60.0   57.0   51.6   +8.5   67.5   in 1959   28.5   in 1992  
    October 1, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   25.26   39.40   35.63   -10.37   48.53   in 1998   17.64   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)   56   45   95   -39   222   in 1956   23   in 1921  
Total CDD (since Jan 1)   868   723   559   +309   868   in 2020   288   in 1902  
                             
Hour-by-Hour Weather For October 1, 2020  
Climate Weather for October 1  
Weather History For October 1  
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