Portsmouth Rhode Island Weather Almanac  
Tuesday, January 10, 2023  
Cloudy early, Partly Cloudy Day to Mostly Cloudy PM, Continued Warm  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    January 10, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   43   40   39   +4   58   in 2016   15   in 2004  
Minimum Temperature   30   22   25   +5   42   in 2016   0   in 2004  
Average Temperature   37   31   32   +5   50   in 2016   8   in 2004  
 Month Avg Max Temperature   45.1   41.2   39.5   +5.6   50.8   in 2000   23.9   in 1918  
Month Avg Min Temperature   34.3   26.3   25.7   +8.6   38.1   in 2007   8.4   in 1981  
Month Average Temperature   40.0   33.9   32.7   +7.3   44.2   in 2007   17.3   in 1981  
High Heat Index                                      
Low Wind Chill   23   11   12   +11             -23   in 2004  
Heating Degree Days   28   34   33   -5   57   in 2004   15   in 2016  
Month HDD   250   311   323   -73   477   in 1981   208   in 2007  
Season HDD   1943   1867   2193   -250   2910   in 1918   1617   in 2016  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   30   36   31   -1   57   in 2016   -5   in 2004  
Minimum Dew Point   18   7   15   +3   40   in 2016   -22   in 1982  
Average  Dew Point   24   22   23   +1   49   in 2016   -10   in 2004  
 Month Avg Max Dew Point   40.6   36.7   32.1   +8.5   45.3   in 2000   13.8   in 1970  
Month Avg Min Dew Point   29.9   17.1   16.2   +13.7   29.9   in 2023   -8.3   in 1981  
Month Average Dew Point   35.3   22.2   24.2   +11.1   36.2   in 2007   3.0   in 1981  
Precipitation   .00   .00   .12   -.12   1.78   in 1977            
One Hour   .00   .00           .42   in 2000            
Hourly Rate   .00   .00           4.11   in 2016            
Month Precipitation   .86   1.41   1.22   -.36   4.52   in 1979   .03   in 1963  
Year Precipitation   .86   1.41   1.22   -.36   4.52   in 1979   .03   in 1963  
Snow   0.0   0.0   0.3   -0.3   5.5   in 1942       in    
Snow Depth   0   T           24   in 1996       in    
Month Snow   T   4.5   3.0   -3.0   25.7   in 1996   0.0   in 2007  
Season Snow   1.5   5.3   10.1   -8.6   41.5   in 1996   T   in 2000  
    January 10, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   81%   89%   83%   -2%   100%   in 2017   45%   in 1962  
Minimum Humidity   53%   44%   53%   +0%   92%   in 1956   24%   in 1968  
Average Humidity   67%   67%   68%   -1%   95%   in 1956   39%   in 1962  
Maximum Barometer   30.14   30.09   30.16   -00.02   30.76   in 1994   29.54   in 1997  
Minimum Barometer   29.87   29.85   29.83   +00.04   30.43   in 2020   29.18   in 1977  
Average Barometer   30.01   29.97   30.00   +00.01   30.58   in 2020   29.37   in 1997  
Average Wind   6.8   11.0   8.4   -1.6   16.9   in 1978   1.2   in 2014  
Direction   WNW   NW   WNW       WSW SSE
High Wind Gust   17   32   26   -9   46   in 1964   10   in 1975  
Direction   W   NW   NW       W N
Maximum Water Temp   43.3   43.9   41.6   +1.7   48.9   in 2007   34.5   in 2018  
Minimum Water Temp   41.5   41.7   39.3   +2.2   45.7   in 2016   32.4   in 2018  
Average Water Temp   42.4   42.8   40.3   +2.1   46.9   in 2007   33.5   in 2018  
Sunrise/ AM Twilight   7:11:04 AM   6:40:08 AM            
Sunset / PM Twilight   4:34:18 PM   5:05:34 PM            
Length Of Day   9:23:14                          
Special Conditions   None                              
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