Portsmouth Rhode Island Weather Almanac  
Friday, July 7, 2023  
Cloudy Early, Partly Cloudy Day to Cloudy PM, Cooler and Humid  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    July 7, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   80   77   79   +1   92   in 1981   65   in 2005  
Minimum Temperature   69   60   64   +5   73   in 2013   49   in 1965  
Average Temperature   75   69   72   +3   81   in 2013   61   in 1914  
 Month Avg Max Temperature   81.7   79.4   78.9   +2.9   87.9   in 1955   68.3   in 1914  
Month Avg Min Temperature   67.1   64.1   63.6   +3.6   70.7   in 2013   53.9   in 1962  
Month Average Temperature   74.7   72.1   71.6   +3.1   77.7   in 1999   61.9   in 1914  
High Heat Index   84   77           100   in 2021            
Low Wind Chill                             49   in 1965  
Heating Degree Days   0   0   0   +0   4   in 1914   0   in 2023  
Month Heating DD   0   0   3   -3   23   in 1914   0   in 2023  
Season Heating DD   0   0   3   -3   23   in 1914   0   in 2023  
Cooling Degree Days   10   4   6   +4   16   in 2013   0   in 2009  
Month Cooling DD   68   50   46   +22   89   in 1999   1   in 1914  
Year Cooling DD   144   145   139   +5   219   in 1957   31   in 1972  
Maximum Dew Point   74   64   68   +6   78   in 1994   50   in 1979  
Minimum Dew Point   68   58   59   +9   69   in 2013   42   in 1980  
Average  Dew Point   71   61   64   +7   74   in 1994   47   in 1979  
 Month Avg Max Dew Point   74.9   68.1   67.6   +7.3   74.9   in 2023   52.9   in 1982  
Month Avg Min Dew Point   66.3   57.9   58.9   +7.4   68.3   in 2013   45.1   in 1982  
Month Average Dew Point   70.6   63.0   63.3   +7.3   71.1   in 2013   49.0   in 1982  
Precipitation   .00   .00   .10   -.10   1.45   in 1984            
One Hour Rain   .00   .00           .49   in 1984            
Hourly Rain Rate   .00   .00           2.25   in 2017            
Month Precipitation   1.60   .30   .76   +.84   3.40   in 2009   .00   in 2019  
Year Precipitation   26.08   23.20   23.33   +2.75   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 7, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   97%   91%   +8%   100%   in 2017   65%   in 1980  
Minimum Humidity   80%   53%   56%   +24%   95%   in 1991   30%   in 1971  
Average Humidity   90%   75%   73%   +16%   98%   in 1991   49%   in 1980  
Maximum Barometer   29.92   30.06   30.03   -00.11   30.33   in 2018   29.70   in 1954  
Minimum Barometer   29.84   29.97   29.87   -00.03   30.18   in 1967   29.44   in 1966  
Average Barometer   29.88   30.02   29.95   -00.07   30.26   in 1967   29.59   in 1966  
Average Wind   5.5   3.8   5.6   -0.1   13.3   in 1984   1.9   in 1991  
Direction   SSW   SSE   SSW       SSW SSE
High Wind Gust   16   20   20   -4   40   in 1984   10   in 2003  
Direction   SW   SSW   SW       SSW ESE
Maximum Water Temp   72.7   70.0   70.4   +2.3   77.8   in 2013   64.8   in 2020  
Minimum Water Temp   69.8   66.4   65.7   +4.1   70.8   in 2010   60.7   in 2006  
Average Water Temp   71.3   68.2   68.0   +3.2   72.8   in 2010   62.9   in 2005  
Sunrise/ AM Twilight   5:18:10 AM   4:46:07 AM            
Sunset / PM Twilight   8:21:31 PM   8:54:37 PM            
Length Of Day   15:03:21                          
Special Conditions   Dense Fog                              
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