Portsmouth Rhode Island Weather Almanac  
Thursday, June 30, 2022  
Clear to Partly Cloudy PM, Seasonal Temperatures  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    June 30, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   80   89   78   +2   93   in 1945   66   in 1967  
Minimum Temperature   62   71   63   -1   71   in 2021   51   in 1919  
Average Temperature   71   80   71   +0   80   in 2021   60   in 1967  
 Month Avg Max Temperature   74.9   77.6   73.8   +1.1   79.1   in 1957   66.5   in 1903  
Month Avg Min Temperature   57.9   60.3   57.9   +0.0   61.3   in 2001   53.1   in 1907  
Month Average Temperature   66.6   69.2   65.9   +0.7   69.3   in 2001   60.5   in 1903  
High Heat Index   80   101   79   +1   101   in 2021            
Low Wind Chill                                      
Heating Degree Days   0   0   0   +0   5   in 1967   0   in 2022  
Month HDD   24   19   50   -26   159   in 1907   5   in 1899  
Season HDD   5009   5064   5478   -469   6620   in 1905   4549   in 2012  
Cooling Degree Days   6   15   6   +0   15   in 2021       in    
Month CDD   72   145   80   -8   165   in 1957   11   in 1972  
Year CDD   95   162   93   +2   181   in 1957   11   in 1972  
Maximum Dew Point   61   77   67   -6   77   in 2021   53   in 1989  
Minimum Dew Point   52   68   59   -7   68   in 2021   38   in 1978  
Average  Dew Point   57   73   63   -6   73   in 2021   48   in 1989  
 Month Avg Max Dew Point   62.9   66.7   62.9   -0.0   66.7   in 2021   54.9   in 1965  
Month Avg Min Dew Point   53.6   56.3   53.3   +0.3   57.2   in 2010   44.9   in 1958  
Month Average Dew Point   58.2   61.5   58.0   +0.2   61.6   in 2008   50.3   in 1965  
Precipitation   .00   .01   .11   -.11   2.27   in 1939            
One Hour   .00   .01           .77   in 1998            
Hourly Rate   .00   .00           3.22   in 2013            
Month Precipitation   3.70   2.06   3.53   +.17   10.87   in 1998   .05   in 1949  
Year Precipitation   22.90   19.06   22.57   +.33   40.39   in 1998   12.92   in 1957  
Snow   0.0   0.0   0.0   +0.0       in         in    
Snow Depth   0   0               in         in    
Month Snow   0.0   0.0   0.0   +0.0       in         in    
Season Snow   34.7   27.7   33.5   +1.2   84.1   in 1996   5.0   in 1998  
    June 30, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   96%   92%   91%   +5%   100%   in 2005   66%   in 1978  
Minimum Humidity   39%   64%   58%   -19%   93%   in 1973   29%   in 1989  
Average Humidity   68%   78%   75%   -7%   96%   in 1998   50%   in 1978  
Maximum Barometer   30.17   30.08   29.99   +00.18   30.41   in 1985   29.50   in 1957  
Minimum Barometer   30.11   29.86   29.80   +00.31   30.20   in 2002   29.35   in 1998  
Average Barometer   30.14   29.97   29.90   +00.24   30.24   in 2002   29.44   in 1957  
Average Wind   6.2   6.7   6.1   +0.1   14.5   in 1975   2.0   in 1980  
Direction   NW   SW   SSW       NE         NNE        
High Wind Gust   21   28   22   -1   44   in 1957   11   in 1980  
Direction   NW   WSW   SSW       NW         ENE        
Maximum Water Temp   68.2   72.9   68.4   -0.2   72.9   in 2021   63.6   in 2006  
Minimum Water Temp   65.7   68.2   64.4   +1.3   68.2   in 2021   59.5   in 2003  
Average Water Temp   67.0   70.6   66.4   +0.6   70.6   in 2021   61.9   in 2006  
Sunrise/ AM Twilight   5:14:20 AM   4:41:32 AM            
Sunset / PM Twilight   8:23:04 PM   8:56:47 PM            
Length Of Day   15:08:44                          
Special Conditions   None                              
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