Portsmouth Rhode Island Weather Almanac  
Thursday, August 18, 2022  
Partly Cloudy, Warmer and Dry  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    August 18, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   83   80   78   +5   93   in 1987   64   in 1919  
Minimum Temperature   63   68   64   -1   74   in 1965   52   in 1979  
Average Temperature   73   74   71   +2   82   in 1987   60   in 1979  
 Month Avg Max Temperature   83.0   80.8   79.2   +3.8   85.1   in 1944   72.3   in 1964  
Month Avg Min Temperature   67.0   65.7   64.5   +2.5   71.3   in 1988   55.8   in 1964  
Month Average Temperature   75.3   73.5   71.8   +3.5   78.1   in 1988   64.4   in 1964  
High Heat Index   82   83   80   +2   97   in 2009            
Low Wind Chill                                 in #N/A  
Heating Degree Days   0   0   0   +0   5   in 1979   0   in 2022  
Month HDD   0   0   0   +0   24   in 1964   0   in 2022  
Season HDD   0   0   0   +0   24   in 1964   0   in 2022  
Cooling Degree Days   8   9   7   +1   17   in 1987       in    
Month CDD   185   153   133   +52   235   in 1988   13   in 1964  
Year CDD   566   543   461   +105   663   in 2020   208   in 1902  
Maximum Dew Point   65   72   68   -3   76   in 1955   53   in 1981  
Minimum Dew Point   57   64   59   -2   73   in 1955   42   in 1981  
Average  Dew Point   61   68   64   -3   75   in 1955   48   in 1981  
 Month Avg Max Dew Point   70.9   70.8   68.7   +2.3   74.2   in 2018   57.8   in 1964  
Month Avg Min Dew Point   63.3   62.4   60.6   +2.7   68.0   in 2018   47.3   in 1964  
Month Average Dew Point   67.1   66.6   64.6   +2.5   71.1   in 2018   52.5   in 1964  
Precipitation   .00   .00   .12   -.12   1.55   in 1955            
One Hour   .00   .00           .81   in 1955            
Hourly Rate   .00   .00           6.62   in 2018            
Month Precipitation   .62   4.02   2.15   -1.53   8.35   in 1992   .08   in 1940  
Year Precipitation   24.03   26.85   27.80   -3.77   43.94   in 1983   15.70   in 1957  
Snow   #N/A   #N/A   0.0   #N/A       in         in    
Snow Depth   #N/A   #N/A               in         in    
Month Snow   0.0   0.0   0.0   +0.0       in         in    
Season Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A   #N/A   in #N/A  
    August 18, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   87%   97%   93%   -6%   100%   in 2019   73%   in 1954  
Minimum Humidity   44%   69%   57%   -13%   96%   in 1986   30%   in 1988  
Average Humidity   66%   83%   75%   -10%   98%   in 1986   55%   in 1954  
Maximum Barometer   29.93   30.25   30.04   -00.11   30.37   in 1989   29.75   in 1958  
Minimum Barometer   29.82   30.14   29.84   -00.02   30.20   in 1961   29.45   in 1988  
Average Barometer   29.88   30.20   29.94   -00.07   30.28   in 1961   29.66   in 1958  
Average Wind   7.6   4.8   5.6   +2.0   12.5   in 1988   1.4   in 1992  
Direction   WNW   SSW   WNW       NNW         WNW        
High Wind Gust   28   18   20   +8   33   in 1991   9   in 2010  
Direction   SSW   S   S       SW         NNW        
Maximum Water Temp   72.3   75.0   71.9   +0.4   75.4   in 2012   67.6   in 2020  
Minimum Water Temp   70.7   72.0   68.8   +1.9   73.4   in 2018   64.0   in 2008  
Average Water Temp   71.5   73.5   70.3   +1.2   74.2   in 2018   66.7   in 2020  
Sunrise/ AM Twilight   5:56:53 AM   4:55:37 AM            
Sunset / PM Twilight   7:40:08 PM   8:47:33 PM            
Length Of Day   14:48:49                          
Special Conditions   None                              
Comments   Extreme  Drought  
Hour-by-Hour Weather For August 18, 2022            
Climate Weather for August 18            
Weather History For August 18            
Weather Calendar            
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