Portsmouth Rhode Island Weather Almanac  
Thursday, January 11, 2024  
Mostly Cloudy early, Cloudy Day to Partly Cloudy PM, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    January 11, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   43   38   38   +5   56   in 2020   11   in 1982  
Minimum Temperature   38   24   25   +13   48   in 2020   -2   in 1893  
Average Temperature   41   31   32   +9   52   in 2020   6   in 1982  
 Month Avg Max Temperature   41.0   44.5   39.4   +1.6   51.0   in 2000   24.5   in 1981  
Month Avg Min Temperature   28.1   33.4   25.6   +2.5   36.7   in 2007   7.5   in 1981  
Month Average Temperature   34.6   39.2   32.6   +2.0   43.1   in 2007   16.4   in 1981  
High Heat Index                   #N/A   in #N/A            
Low Wind Chill   32   17   12   +20             -24   in 1981  
Heating Degree Days   24   34   33   -9   59   in 1982   13   in 2020  
Month Heating DD   334   284   356   -22   535   in 1981   241   in 2007  
Season Heating DD   2011   1977   2226   -215   2944   in 1918   1644   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   34   30   31   +3   55   in 1975   -10   in 1968  
Minimum Dew Point   30   16   15   +15   46   in 2020   -20   in 1968  
Average  Dew Point   32   23   23   +9   50   in 2020   -15   in 1968  
 Month Avg Max Dew Point   33.6   39.6   32.0   +1.6   45.2   in 2000   12.0   in 1968  
Month Avg Min Dew Point   21.9   28.6   16.1   +5.8   29.3   in 1998   -9.2   in 1981  
Month Average Dew Point   28.0   34.2   24.1   +3.9   35.5   in 1998   1.6   in 1981  
Precipitation   .00   .00   .12   -.12   1.00   in 1922            
One Hour Rain   .00   .00           .29   in 1983            
Half Hour Rain   .00   .00           .18   in 2014            
Hourly Rain Rate   .00   .00           3.37   in 2008            
Month Precipitation   3.25   .86   1.34   +1.91   4.52   in 1979   .09   in 1984  
Year Precipitation   3.25   .86   1.34   +1.91   4.52   in 1979   .09   in 1984  
Snow   0.0   0.0   0.3   -0.3   7.8   in 1927            
Snow Depth   0   0   1   -1   22   in 1996            
Month Snow   3.4   T   3.3   +0.1   25.7   in 1996   0.0   in 2007  
Season Snow   3.5   1.5   10.4   -6.9   41.5   in 1996   T   in 2000  
    January 11, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   79%   93%   82%   -3%   100%   in 2017   38%   in 1968  
Minimum Humidity   66%   56%   54%   +12%   96%   in 2014   24%   in 2004  
Average Humidity   73%   75%   68%   +4%   98%   in 2014   33%   in 1968  
Maximum Barometer   29.95   30.31   30.18   -00.23   30.93   in 1991   29.40   in 1987  
Minimum Barometer   29.59   30.14   29.84   -00.25   30.49   in 2015   28.80   in 1987  
Average Barometer   29.77   30.23   30.01   -00.24   30.60   in 1991   29.10   in 1987  
Average Wind   6.6   7.0   8.7   -2.1   15.7   in 1983   3.3   in 2021  
Direction   WSW   N   W       S W
High Wind Gust   19   16   27   -8   52   in 1927   13   in 1972  
Direction   WSW   NNE   WNW       NW W
Maximum Water Temp   46.6   44.6   41.4   +5.2   47.3   in 2016   34.8   in 2018  
Minimum Water Temp   45.0   42.1   39.1   +5.9   45.0   in 2024   33.0   in 2004  
Average Water Temp   45.8   43.4   40.1   +5.7   45.8   in 2024   34.0   in 2018  
Sunrise/ AM Twilight   7:10:52 AM   6:39:54 AM            
Sunset / PM Twilight   4:35:23 PM   5:06:34 PM            
Length Of Day   16:35:07                          
Special Conditions   None                              
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