Portsmouth Rhode Island Weather Almanac  
Wednesday, January 11, 2023  
Mostly Cloudy early, Partly Cloudy Day to Cloudy PM, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    January 11, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   38   22   38   +0   56   in 2020   11   in 1982  
Minimum Temperature   24   8   25   -1   48   in 2020   -2   in 1893  
Average Temperature   31   15   32   -1   52   in 2020   6   in 1982  
 Month Avg Max Temperature   44.5   39.5   39.4   +5.1   51.0   in 2000   24.5   in 1981  
Month Avg Min Temperature   33.4   24.6   25.6   +7.7   36.7   in 2007   7.5   in 1981  
Month Average Temperature   39.2   32.2   32.6   +6.5   43.1   in 2007   16.4   in 1981  
High Heat Index                                      
Low Wind Chill   17   -2   11   +6             -24   in 1981  
Heating Degree Days   34   50   33   +1   59   in 1982   13   in 2020  
Month HDD   284   361   356   -72   535   in 1981   241   in 2007  
Season HDD   1977   1917   2226   -249   2944   in 1918   1644   in 2016  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   30   10   31   -1   55   in 1975   -10   in 1968  
Minimum Dew Point   16   -7   15   +1   46   in 2020   -20   in 1968  
Average  Dew Point   23   2   23   +0   50   in 2020   -15   in 1968  
 Month Avg Max Dew Point   39.6   34.3   32.0   +7.6   45.2   in 2000   12.0   in 1968  
Month Avg Min Dew Point   28.6   14.9   16.1   +12.5   29.3   in 1998   -9.2   in 1981  
Month Average Dew Point   34.2   19.9   24.1   +10.1   35.5   in 1998   1.6   in 1981  
Precipitation   .00   T   .12   -.12   1.00   in 1922            
One Hour   .00   .00           .29   in 1983            
Hourly Rate   .00   .00           3.37   in 2008            
Month Precipitation   .86   1.41   1.34   -.48   4.52   in 1979   .09   in 1984  
Year Precipitation   .86   1.41   1.34   -.48   4.52   in 1979   .09   in 1984  
Snow   0.0   T   0.3   -0.3   7.8   in 1927       in    
Snow Depth   0   0           22   in 1996       in    
Month Snow   T   4.5   3.3   -3.3   25.7   in 1996   0.0   in 2007  
Season Snow   1.5   5.3   10.4   -8.9   41.5   in 1996   T   in 2000  
    January 11, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   93%   66%   82%   +11%   100%   in 2017   38%   in 1968  
Minimum Humidity   56%   38%   54%   +2%   96%   in 2014   24%   in 2004  
Average Humidity   75%   52%   68%   +6%   98%   in 2014   33%   in 1968  
Maximum Barometer   30.31   30.53   30.18   +00.13   30.93   in 1991   29.40   in 1987  
Minimum Barometer   30.14   30.09   29.84   +00.30   30.49   in 2015   28.80   in 1987  
Average Barometer   30.23   30.31   30.01   +00.21   30.60   in 1991   29.10   in 1987  
Average Wind   7.0   11.3   8.7   -1.7   15.7   in 1983   3.3   in 2021  
Direction   N   NW   W       S W
High Wind Gust   16   35   27   -11   52   in 1927   13   in 1972  
Direction   NNE   WNW   WNW       NW W
Maximum Water Temp   44.6   41.9   41.2   +3.4   47.3   in 2016   34.8   in 2018  
Minimum Water Temp   42.1   38.1   38.8   +3.3   44.4   in 2012   33.0   in 2004  
Average Water Temp   43.4   40.0   39.9   +3.4   45.8   in 2016   34.0   in 2018  
Sunrise/ AM Twilight   7:10:48 AM   6:39:54 AM            
Sunset / PM Twilight   4:35:23 PM   5:06:34 PM            
Length Of Day   9:24:35                          
Special Conditions   None                              
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