Portsmouth Rhode Island Weather Almanac  
Saturday, June 15, 2024  
Mostly Cloudy, Light Rain & Fog early, Partly Cloudy Day to Clear PM, Continued Warm  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    June 15, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   77   75   73   +4   92   in 1956   55   in 1951  
Minimum Temperature   61   57   57   +4   68   in 1969   44   in 1911  
Average Temperature   69   66   65   +4   78   in 1956   53   in 1951  
 Month Avg Max Temperature   75.0   70.4   71.5   +3.5   78.9   in 1925   61.5   in 1907  
Month Avg Min Temperature   57.7   53.6   55.3   +2.4   59.8   in 1899   47.5   in 1907  
Month Average Temperature   66.7   62.2   63.5   +3.1   69.3   in 1925   54.6   in 1907  
High Heat Index   77   76   74   +3   94   in 1956            
Low Wind Chill                             44   in 1911  
Heating Degree Days   0   0   1   -1   12   in 1951   0   in 2024  
Month Heating DD   4   54   38   -34   156   in 1907   2   in 1899  
Season Heating DD   4951   4776   5497   -546   6601   in 1905   4414   in 1932    
Cooling Degree Days   4   1   3   +1   13   in 1956   0   in 2020    
Month Cooling DD   29   12   22   +7   81   in 1984   0   in 1998    
Year Cooling DD   39   12   33   +6   81   in 1991   0   in 1972    
Maximum Dew Point   65   63   63   +2   75   in 1994   42   in 1978    
Minimum Dew Point   48   55   53   -5   65   in 1969   34   in 1978    
Average  Dew Point   57   59   58   -1   70   in 1994   38   in 1978  
 Month Avg Max Dew Point   63.9   59.8   60.6   +3.3   65.9   in 1996   50.6   in 1988  
Month Avg Min Dew Point   58.5   51.2   50.7   +7.9   58.5   in 2024   42.3   in 1988  
Month Average Dew Point   58.5   55.5   55.5   +3.0   60.4   in 1996   46.5   in 1988  
Precipitation   .04   .00   .12   -.08   1.28   in 1896            
One Hour Rain   .03   .00           .46   in 1983            
Half Hour Rain   .02   .00           .13   in 2015            
Hourly Rain Rate   .05   .00           1.12   in 2008            
Month Precipitation   .77   .71   1.77   -1.00   8.45   in 1998   T   in 1949  
Year Precipitation   29.93   21.38   20.94   +8.99   37.97   in 1998   12.64   in 1957  
Snow   0.0   0.0   ######   ######   0.0   in 1900            
Snow Depth   0   0   38883   -38883   43997   in              
Month Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A   #N/A   in Many  
Season Snow   12.7   9.1   33.8   -21.1   84.1   in 1996   5.0   in 1998  
    June 15, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   98%   95%   90%   +8%   100%   in 2003   55%   in 1978  
Minimum Humidity   39%   62%   56%   -17%   89%   in 1989   29%   in 1988  
Average Humidity   69%   79%   73%   -5%   95%   in 1989   43%   in 1978  
Maximum Barometer   30.12   29.68   30.03   +00.09   30.43   in 2020   29.61   in 1959  
Minimum Barometer   29.81   29.47   29.82   -00.01   30.36   in 2020   29.36   in 1958  
Average Barometer   29.97   29.58   29.93   +00.04   30.40   in 2020   29.52   in 1958  
Average Wind   7.4   5.1   6.3   +1.1   13.1   in 1969   1.2   in 1996  
Direction   N   W   SW       SW         SW        
High Wind Gust   21   18   21   -0   34   in 1959   12   in 2018  
Direction   N   W   SW       W         NW        
Maximum Water Temp   65.7   64.0   63.5   +2.2   68.4   in 2007   58.5   in 2020  
Minimum Water Temp   61.5   62.8   60.3   +1.2   65.3   in 2007   55.4   in 2006  
Average Water Temp   63.6   63.4   61.9   +1.7   66.8   in 2007   57.4   in 2020  
Sunrise/ AM Twilight   5:10:25 AM   4:36:54 AM            
Sunset / PM Twilight   8:20:48 PM   8:55:05 PM            
Length Of Day   15:10:23                          
Special Conditions   Fog                                  
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Hour-by-Hour Weather For June 15, 2024            
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