Portsmouth Rhode Island Weather Almanac  
Friday, October 8, 2021  
Partly Cloudy/Foggy Morning, Clear Day to Partly Cloudy PM and Continued Warm  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2021
    October 8, 2021   Record   Record  
Observed Daily Data   2021   2020   Norm   Depart   Highest   Lowest  
Maximum Temperature   74   64   65   +9   80   in 1931   51   in 1988  
Minimum Temperature   57   49   50   +7   69   in 2005   27   in 1954  
Average Temperature   66   57   58   +8   70   in 2005   43   in 1954  
 Month Avg Max Temperature   69.1   68.0   66.1   +3.0   75.6   in 1927   56.9   in 1899  
Month Avg Min Temperature   53.9   51.3   51.3   +2.6   59.9   in 1927   40.9   in 1992  
Month Average Temperature   61.9   59.9   58.9   +3.0   68.0   in 1927   50.6   in 1899  
High Heat Index   74               82   in 1931            
Low Wind Chill       46                     26   in 1954  
HDD   0   8   7   -7   22   in 1954   0   in 2021  
Month HDD   28   42   49   -21   115   in 1899   4   in 1927  
Season HDD   53   98   129   -76   296   in 1956   53   in 2021  
CDD   1   0   0   +1   5   in 2005   0   in    
Month CDD   3   1   6   -3   28   in 1927   0   in 2016  
Year CDD   789   868   609   +180   868   in 2020   290   in 1902  
Maximum Dew Point   61   48   56   +5   71   in 2005   33   in 1953  
Minimum Dew Point   55   34   44   +11   67   in 2005   23   in 2001  
Average  Dew Point   58   41   50   +8   69   in 2005   29   in 2001  
 Month Avg Max Dew Point   59.6   57.0   57.6   +2.0   65.5   in 2007   42.6   in 1984  
Month Avg Min Dew Point   51.8   46.3   45.8   +6.0   56.0   in 2005   29.4   in 1984  
Month Average Dew Point   56.0   52.0   51.6   +4.4   60.6   in 2005   36.0   in 1984  
Precipitation   .00   .00   .14   -.14   2.24   in 1996            
One Hour   .00   .00           .59   in 1996            
Hourly Rate   .00   .00           2.05   in 2007            
Month Precipitation   1.14   .37   1.12   +.02   5.76   in 1962   .00   in 1992  
Year Precipitation   40.24   25.63   34.20   +6.04   48.88   in 1998   18.72   in 1957  
Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A            
Snow Depth   #N/A   #N/A           #N/A   in              
Month Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A   #N/A   in    
Season Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A   #N/A   in #N/A  
    October 8, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   99%   78%   91%   +8%   100%   in 2017   72%   in 1953  
Minimum Humidity   57%   34%   56%   +1%   93%   in 2005   28%   in 1960  
Average Humidity   78%   56%   73%   +5%   97%   in 2005   52%   in 1960  
Maximum Barometer   30.24   30.08   30.16   +00.08   30.71   in 1985   29.48   in 1972  
Minimum Barometer   30.12   29.63   29.90   +00.22   30.36   in 2011   28.95   in 1965  
Average Barometer   30.18   29.86   30.03   +00.15   30.51   in 1954   29.26   in 1972  
Average Wind   4.7   11.2   6.6   -1.9   14.2   in 1988   1.7   in 2006  
Direction   ENE   NW   SSW       N         SSE        
High Wind Gust   16   28   22   -6   45   in 1907   12   in 1970  
Direction   NE   NNW   SSW       SW         SSE        
Maximum Water Temp   64.8   67.5   64.0   +0.8   68.4   in 2005   59.0   in 2001  
Minimum Water Temp   62.6   66.6   62.1   +0.5   66.6   in 2021   54.5   in 2001  
Average Water Temp   63.7   67.1   63.1   +0.6   67.1   in 2021   56.8   in 2001  
Sunrise/ AM Twilight   6:48:37 AM   6:22:21 AM            
Sunset / PM Twilight   6:16:43 PM   6:42:59 PM            
Length Of Day   11:28:06                          
Special Conditions   None                              
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