Portsmouth Rhode Island Weather Almanac  
Thursday, July 6, 2023  
Mostly Cloudy, Dense Fog early, Clear Day to Partly Cloudy PM, Continued Warm and Muggy  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    July 6, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   84   84   79   +5   98   in 2010   61   in 1956  
Minimum Temperature   69   65   64   +5   74   in 1999   50   in 1979  
Average Temperature   77   75   72   +5   85   in 2010   58   in 1956  
 Month Avg Max Temperature   82.0   79.8   78.8   +3.2   89.0   in 1955   68.8   in 1914  
Month Avg Min Temperature   66.8   64.8   63.5   +3.3   70.3   in 2013   53.7   in 1962  
Month Average Temperature   74.7   72.7   71.5   +3.2   77.8   in 1955   62.0   in 1914  
High Heat Index   92   89           111   in 2010            
Low Wind Chill                             45   in 1979  
Heating Degree Days   0   0   0   +0   7   in 1956   0   in 2023  
Month Heating DD   0   0   3   -3   19   in 1914   0   in 2023  
Season Heating DD   0   0   3   -3   19   in 1914   0   in 2023  
Cooling Degree Days   12   10   6   +6   20   in 2010   0   in 2001  
Month Cooling DD   58   46   39   +19   77   in 1955   1   in 1914  
Year Cooling DD   134   141   132   +2   215   in 1957   31   in 1972  
Maximum Dew Point   76   73   68   +8   77   in 1994   45   in 1979  
Minimum Dew Point   68   58   59   +9   71   in 1999   38   in 1965  
Average  Dew Point   72   66   64   +8   73   in 1999   44   in 1979  
 Month Avg Max Dew Point   75.0   68.8   67.5   +7.5   75.0   in 2023   51.3   in 1982  
Month Avg Min Dew Point   66.0   57.8   58.8   +7.2   68.2   in 2013   43.7   in 1982  
Month Average Dew Point   70.5   63.3   63.2   +7.3   70.9   in 2013   47.5   in 1982  
Precipitation   .00   .06   .11   -.11   1.70   in 1955            
One Hour Rain   .00   .06           .59   in 1955            
Hourly Rain Rate   .00   .92           1.17   in 2018            
Month Precipitation   1.60   .30   .66   +.94   3.03   in 2014   .00   in 2019  
Year Precipitation   26.08   23.20   23.23   +2.85   40.73   in 1998   12.92   in 1957  
Snow                                      
Snow Depth                                      
Month Snow                                      
Season Snow   0.0   0.0   0.0   +0.0   0.0   in 1996   0.0   in 1998  
    July 6, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   96%   93%   +6%   100%   in 2004   60%   in 1977  
Minimum Humidity   68%   54%   57%   +11%   87%   in 1989   26%   in 1965  
Average Humidity   84%   75%   75%   +9%   94%   in 1989   46%   in 1977  
Maximum Barometer   29.98   29.97   30.02   -00.04   30.45   in 1906   29.75   in 1954  
Minimum Barometer   29.90   29.74   29.84   +00.06   30.11   in 1995   29.47   in 1951  
Average Barometer   29.94   29.86   29.93   +00.01   30.18   in 1995   29.64   in 1951  
Average Wind   6.1   7.6   5.5   +0.6   15.8   in 1984   1.3   in 1989  
Direction   SSW   NW   SSW       SSW SW
High Wind Gust   19   29   20   -1   39   in 1980   11   in 2006  
Direction   SSW   WSW   SSW       NNW W
Maximum Water Temp   72.9   68.9   70.5   +2.4   76.3   in 2013   64.8   in 2020  
Minimum Water Temp   70.2   65.8   65.8   +4.4   70.8   in 2013   60.8   in 2005  
Average Water Temp   71.6   67.4   68.2   +3.4   73.6   in 2013   63.0   in 2020  
Sunrise/ AM Twilight   5:17:32 AM   4:45:23 AM            
Sunset / PM Twilight   8:21:51 PM   8:55:02 PM            
Length Of Day   15:04:19                          
Special Conditions   Dense Fog                              
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