Portsmouth Rhode Island Weather Almanac  
Saturday, August 3, 2024  
Cloudy & Fog early, Clear Day to P Cloudy PM, Very Light Sprinkles Late, Breezy, Continued Hot & Very Muggy  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    August 3, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   85   77   80   +5   94   in 1975   67   in 1950  
Minimum Temperature   73   59   65   +8   75   in 2020   52   in 1964  
Average Temperature   79   68   72   +7   83   in 2006   60   in 1964  
 Month Avg Max Temperature   87.7   76.7   80.0   +7.7   94.7   in 1975   69.3   in 1921  
Month Avg Min Temperature   71.3   58.3   65.0   +6.3   73.7   in 2006   54.3   in 1953  
Month Average Temperature   79.7   67.7   72.0   +7.7   84.0   in 1975   63.7   in 1946  
High Heat Index   95   77   83   +12   108   in 2006            
Low Wind Chill                             49   in 1964  
Heating Degree Days   0   0   0   +0   5   in 1964   0   in 2024  
Month Heating DD   0   0   0   +0   6   in 1946   0   in 2024  
Season Heating DD   0   0   3   -3   34   in 1914   0   in 2024    
Cooling Degree Days   14   3   8   +6   18   in 2006   0   in 1985    
Month Cooling DD   44   8   24   +20   57   in 1975   1   in 1953    
Year Cooling DD   486   392   352   +134   504   in 2020   153   in 1902    
Maximum Dew Point   78   64   69   +9   78   in 2024   51   in 1959    
Minimum Dew Point   71   55   62   +9   72   in 2018   43   in 1956    
Average  Dew Point   75   60   65   +10   75   in 2024   47   in 1956  
 Month Avg Max Dew Point   78.3   61.7   69.0   +9.3   78.3   in 2024   57.3   in 1953  
Month Avg Min Dew Point   69.7   52.0   62.0   +7.7   71.0   in 1979   47.0   in 1964  
Month Average Dew Point   74.0   56.8   65.0   +9.0   74.0   in 2024   52.3   in 1953  
Precipitation   T   .00   .12   -.12   1.10   in 1944            
One Hour Rain   T   .00           .45   in 1954            
Half Hour Rain   .00   .00           .06   in 2006            
Hourly Rain Rate   .00   .00           .66   in 2006            
Month Precipitation   .00   .00   .35   -.35   2.60   in 1965   .00   in 2024  
Year Precipitation   38.27   30.25   26.13   +12.14   41.55   in 1998   14.33   in 1957  
Snow   0.0   0.0   0.0   +0.0   0.0   in 1900            
Snow Depth   0   0   0   +0   0   in              
Month Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A   #N/A   in Many  
Season Snow                                      
    August 3, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   99%   90%   94%   +5%   100%   in 2004   71%   in 1956  
Minimum Humidity   74%   57%   61%   +13%   93%   in 1987   31%   in 1956  
Average Humidity   87%   74%   77%   +9%   97%   in 1987   51%   in 1956  
Maximum Barometer   29.87   30.18   30.03   -00.16   30.35   in 1976   29.76   in 1957  
Minimum Barometer   29.80   30.03   29.86   -00.06   30.16   in 1998   29.55   in 1987  
Average Barometer   29.84   30.11   29.95   -00.11   30.21   in 1998   29.70   in 1980  
Average Wind   8.5   6.7   5.5   +3.0   11.8   in 1974   1.4   in 1996  
Direction   SSW   SW   SSW       SW         SSW        
High Wind Gust   28   23   20   +8   35   in 1957   9   in 2021  
Direction   SSW   S   SW       SW         S        
Maximum Water Temp   71.4   73.8   72.7   -1.3   80.9   in 2006   68.2   in 1996  
Minimum Water Temp   69.1   70.2   69.3   -0.2   72.7   in 2024   65.2   in 2004  
Average Water Temp   70.3   72.0   71.0   -0.8   74.4   in 2006   66.9   in 2020  
Sunrise/ AM Twilight   5:42:11 AM   4:43:20 AM            
Sunset / PM Twilight   7:59:34 PM   8:56:05 PM            
Length Of Day   14:17:23                          
Special Conditions   Fog                                  
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