Portsmouth Rhode Island Weather Almanac  
Sunday, January 15, 2023  
Cloudy With Snow Flurries, Very Windy and Colder  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    January 15, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   35   20   38   -3   61   in 1932   11   in 2004  
Minimum Temperature   30   7   24   +6   51   in 1995   -9   in 1957  
Average Temperature   33   14   31   +2   54   in 1995   3   in 2004  
 Month Avg Max Temperature   44.7   39.0   39.0   +5.7   48.5   in 2007   23.9   in 1981  
Month Avg Min Temperature   33.5   22.3   25.2   +8.3   36.9   in 2007   7.3   in 1981  
Month Average Temperature   39.4   30.8   32.2   +7.2   42.8   in 2007   15.9   in 1981  
High Heat Index                                      
Low Wind Chill   18   -11   11   +7             -34   in 2004  
Heating Degree Days   32   51   34   -2   62   in 2004   11   in 1995  
Month HDD   384   513   492   -108   737   in 1981   333   in 2007  
Season HDD   2077   2069   2362   -285   3089   in 1918   1780   in 2016  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   30   0   30   +0   54   in 1995   -6   in 1986  
Minimum Dew Point   20   -10   14   +6   48   in 1995   -28   in 1957  
Average  Dew Point   25   -5   22   +3   51   in 1995   -16   in 1957  
 Month Avg Max Dew Point   40.5   32.2   31.6   +8.9   43.7   in 2007   10.1   in 1981  
Month Avg Min Dew Point   28.8   11.5   15.6   +13.2   28.8   in 2023   -8.8   in 1981  
Month Average Dew Point   34.7   16.8   23.7   +11.1   35.8   in 2007   0.6   in 1981  
Precipitation   .01   .00   .12   -.11   1.93   in 1936            
One Hour   .01   .00           .36   in 2006            
Hourly Rate   .00   .00           .91   in 2006            
Month Precipitation   2.51   1.41   1.82   +.69   6.72   in 1979   .12   in 1984  
Year Precipitation   2.51   1.41   1.82   +.69   6.72   in 1979   .12   in 1984  
Snow   T   0.0   0.3   -0.3   8.5   in 1912       in    
Snow Depth   0   0           14   in 1923       in    
Month Snow   T   4.5   4.5   -4.5   25.8   in 1996   0.0   in 2007  
Season Snow   1.5   5.3   11.6   -10.1   41.6   in 1996   0.2   in 1914  
    January 15, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   92%   52%   85%   +7%   100%   in 2014   48%   in 1992  
Minimum Humidity   54%   27%   55%   -1%   92%   in 2007   21%   in 1992  
Average Humidity   73%   40%   70%   +3%   96%   in 2007   35%   in 1992  
Maximum Barometer   29.94   30.35   30.15   -00.21   30.72   in 2005   29.41   in 1956  
Minimum Barometer   29.78   29.78   29.79   -00.01   30.50   in 2018   28.98   in 1951  
Average Barometer   29.86   30.07   29.97   -00.11   30.60   in 2018   29.29   in 2006  
Average Wind   19.3   14.8   8.8   +10.5   20.2   in 2006   1.8   in 1953  
Direction   N   NW   WNW       N NNW
High Wind Gust   41   35   26   +15   52   in 1962   11   in 2007  
Direction   NNW   NW   NW       S NNE
Maximum Water Temp   43.2   41.5   40.8   +2.4   48.9   in 2007   35.0   in 2018  
Minimum Water Temp   41.5   38.1   38.1   +3.4   47.1   in 2007   31.8   in 2018  
Average Water Temp   42.4   39.8   39.3   +3.0   48.0   in 2007   33.4   in 2018  
Sunrise/ AM Twilight   7:09:22 AM   6:38:40 AM            
Sunset / PM Twilight   4:39:50 PM   5:10:46 PM            
Length Of Day   9:30:28                          
Special Conditions   None                              
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