Portsmouth Rhode Island Weather Almanac  
Friday, January 12, 2024  
Clear to Partly Cloudy PM, Continued Warm  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    January 12, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   49   50   38   +11   66   in 2020   14   in 1982  
Minimum Temperature   33   32   24   +9   46   in 2017   -4   in 1982  
Average Temperature   41   41   31   +10   53   in 2020   5   in 1982  
 Month Avg Max Temperature   41.7   44.9   39.3   +2.4   50.3   in 2000   23.8   in 1981  
Month Avg Min Temperature   28.5   33.3   25.5   +3.0   36.9   in 2007   6.7   in 1981  
Month Average Temperature   35.2   39.3   32.5   +2.7   43.2   in 2007   15.5   in 1981  
High Heat Index                   #N/A   in #N/A            
Low Wind Chill   29   29   13   +16             -29   in 1982  
Heating Degree Days   24   24   34   -10   60   in 1982   12   in 2020  
Month Heating DD   358   308   390   -32   594   in 1981   262   in 2007  
Season Heating DD   2035   2001   2260   -225   2970   in 1918   1678   in 2016  
Cooling Degree Days   0   0   0   +0       in     0   in Many  
Month Cooling DD   0   0   0   +0   3   in 2022   0   in Many  
Year Cooling DD   726   784   609   +117   871   in 2020   290   in 1902  
Maximum Dew Point   37   50   31   +6   56   in 2020   -10   in 1981  
Minimum Dew Point   30   30   15   +15   44   in 2017   -20   in 1981  
Average  Dew Point   34   40   23   +11   48   in 2018   -15   in 1981  
 Month Avg Max Dew Point   33.9   40.5   31.9   +2.0   43.7   in 2000   10.6   in 1981  
Month Avg Min Dew Point   22.6   28.8   16.0   +6.6   28.8   in 2023   -10.1   in 1981  
Month Average Dew Point   28.5   34.7   24.0   +4.5   34.7   in 2023   0.3   in 1981  
Precipitation   .00   .69   .12   -.12   1.69   in 2018            
One Hour Rain   .00   .27           .46   in 2018            
Half Hour Rain   .00   .14           .33   in 2018            
Hourly Rain Rate   .00   1.81           3.13   in 2018            
Month Precipitation   3.25   1.55   1.46   +1.79   4.52   in 1979   .09   in 1984  
Year Precipitation   3.25   1.55   1.46   +1.79   4.52   in 1979   .09   in 1984  
Snow   0.0   0.0   0.3   -0.3   8.2   in 2011            
Snow Depth   0   0   2   -2   21   in 1996            
Month Snow   3.4   T   3.6   -0.2   25.8   in 1996   0.0   in 2007  
Season Snow   3.5   1.5   10.7   -7.2   41.6   in 1996   T   in 2000  
    January 12, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   90%   99%   82%   +8%   100%   in 2018   43%   in 1968  
Minimum Humidity   49%   89%   54%   -5%   97%   in 2018   20%   in 1992  
Average Humidity   70%   94%   68%   +1%   99%   in 2018   34%   in 1968  
Maximum Barometer   30.23   30.30   30.20   +00.03   30.86   in 1984   29.60   in 1990  
Minimum Barometer   29.91   29.78   29.84   +00.07   30.43   in 1968   28.90   in 1987  
Average Barometer   30.07   30.04   30.02   +00.05   30.55   in 1984   29.32   in 1987  
Average Wind   6.9   9.3   8.1   -1.2   16.4   in 2011   2.1   in 1955  
Direction   WNW   SE   NW       W NNW
High Wind Gust   30   32   27   +3   51   in 1986   7   in 1993  
Direction   E   S   NW       SW ENE
Maximum Water Temp   45.5   44.1   41.6   +3.9   49.3   in 2012   36.3   in 2019  
Minimum Water Temp   44.2   41.9   39.4   +4.8   45.6   in 2012   33.6   in 2019  
Average Water Temp   44.9   43.0   40.4   +4.4   47.5   in 2012   35.0   in 2019  
Sunrise/ AM Twilight   7:10:34 AM   6:39:39 AM            
Sunset / PM Twilight   4:36:28 PM   5:07:36 PM            
Length Of Day   16:36:12                          
Special Conditions   None                              
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