Portsmouth Rhode Island Weather Almanac  
Friday, January 10, 2025  
Clear to Partly Cloudy PM, Continued Windy, Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2025
    January 10, 2025   Record   Record  
Observed Daily Data   2025   2024   Norm   Depart   Highest   Lowest  
Maximum Temperature   42   53   39   +3   58   in 2016   15   in 2004  
Minimum Temperature   24   41   25   -1   42   in 2016   0   in 2004  
Average Temperature   33   47   32   +1   50   in 2016   8   in 2004  
 Month Avg Max Temperature   35.5   40.8   39.5   -4.0   50.8   in 2000   23.9   in 1918  
Month Avg Min Temperature   25.1   27.1   25.7   -0.6   38.1   in 2007   8.4   in 1981  
Month Average Temperature   30.6   34.0   32.7   -2.1   44.2   in 2007   17.3   in 1981  
High Heat Index   76               76   in 2024            
Low Wind Chill   11   36   12   -1             -23   in 2004  
Heating Degree Days   32   18   33   -1   57   in 2004   15   in 2016  
Month Heating DD   344   310   323   +21   477   in 1981   208   in 2007  
Season Heating DD   1996   1990   2193   -197   2910   in 1918   1617   in 2016    
Cooling Degree Days   0   0   #REF!   #REF!   0   in 1900   0   in All    
Month Cooling DD                                        
Year Cooling DD                                        
Maximum Dew Point   25   53   31   -6   57   in 2016   -5   in 2004    
Minimum Dew Point   15   31   15   +0   40   in 2016   -22   in 1982    
Average  Dew Point   20   42   23   -3   49   in 2016   -10   in 2004  
 Month Avg Max Dew Point   23.8   33.6   32.1   -8.3   45.3   in 2000   13.8   in 1970  
Month Avg Min Dew Point   15.4   21.1   16.2   -0.8   29.9   in 2023   -8.3   in 1981  
Month Average Dew Point   19.9   27.6   24.2   -4.3   36.2   in 2007   3.0   in 1981  
Precipitation   .00   1.55   .12   -.12   1.78   in 1977            
One Hour Rain   .00   .40           .42   in 2000            
Half Hour Rain   .00   .29         .29   in 2024            
Hourly Rain Rate   .00   2.01           4.11   in 2016            
Month Precipitation   .42   3.25   1.22   -.80   4.52   in 1979   .03   in 1963  
Year Precipitation   .42   3.25   1.22   -.80   4.52   in 1979   .03   in 1963    
Snow   0.0   0.0   0.3   -0.3   5.5   in 1942   0.0   in      
Snow Depth   0   0   1.3   -1   24   in 1996   0   in      
Month Snow   T   3.4   3.0   -3.0   25.7   in 1996   0.0   in 2007    
Season Snow   0.2   3.5   10.1   -9.9   41.5   in 1996   T   in 2000    
    January 10, 2025     Record Record  
Observed Daily Data   2025   2024   Norm   Depart   Highest Lowest  
Maximum Humidity   73%   99%   83%   -10%   100%   in 2017   45%   in 1962    
Minimum Humidity   48%   57%   53%   -5%   92%   in 1956   24%   in 1968    
Average Humidity   61%   78%   68%   -8%   95%   in 1956   39%   in 1962    
Maximum Barometer   29.84   29.59   30.15   -00.31   30.76   in 1994   29.54   in 1997  
Minimum Barometer   29.69   29.00   29.82   -00.13   30.43   in 2020   29.00   in 2024  
Average Barometer   29.77   29.30   29.98   -00.22   30.58   in 2020   29.30   in 2024  
Average Wind   12.2   14.7   8.5   +3.7   16.9   in 1978   1.2   in 2014  
Direction   NW   WSW   WNW       WSW         SSE        
High Wind Gust   32   50   26   +6   50   in 2024   10   in 1975  
Direction   NNW   SSE   NW       SSE         N        
Maximum Water Temp   39.2   46.9   41.7   -2.5   48.9   in 2007   34.5   in 2018  
Minimum Water Temp   36.1   44.6   39.4   -3.3   45.7   in 2016   32.4   in 2018  
Average Water Temp   37.7   45.8   40.4   -2.8   46.9   in 2007   33.5   in 2018  
Sunrise/ AM Twilight   7:10:55 AM   6:40:08 AM            
Sunset / PM Twilight   4:34:18 PM   5:05:34 PM            
Length Of Day   16:34:51                          
Special Conditions   None                                  
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