Portsmouth Rhode Island Weather Almanac  
Sunday, February 11, 2024  
Partly Cloudy, Continued Warm  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    February 11, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   46   45   39   +7   58   in 2009   10   in 1979  
Minimum Temperature   35   32   25   +10   44   in 2018   -4   in 1979  
Average Temperature   41   39   32   +9   49   in 2009   3   in 1979  
 Month Avg Max Temperature   42.6   41.9   38.1   +4.5   47.5   in 1991   23.8   in 1934  
Month Avg Min Temperature   30.5   22.6   23.9   +6.5   33.1   in 2020   8.0   in 1934  
Month Average Temperature   36.7   32.5   31.5   +5.3   39.2   in 2020   16.1   in 1934  
High Heat Index                   #N/A   in #N/A            
Low Wind Chill   31   24   11   +20             -26   in 1979  
Heating Degree Days   24   26   33   -9   62   in 1979   16   in 2009  
Month Heating DD   311   357   369   -58   538   in 1934   284   in 2020  
Season Heating DD   2978   2851   3288   -310   4255   in 1918   2613   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   42   32   30   +12   51   in 2018   -14   in 1979  
Minimum Dew Point   30   19   13   +17   43   in 2018   -23   in 1979  
Average  Dew Point   36   26   22   +14   47   in 2018   -19   in 1979  
 Month Avg Max Dew Point   33.3   33.0   28.9   +4.4   38.5   in 2020   8.6   in 1979  
Month Avg Min Dew Point   23.7   10.5   12.4   +11.4   26.7   in 2020   -3.5   in 1979  
Month Average Dew Point   28.8   21.9   22.0   +6.8   32.6   in 2020   2.6   in 1979  
Precipitation   .00   .00   .12   -.12   1.98   in 1955            
One Hour Rain   .00   .00           .35   in 1955            
Half Hour Rain   .00   .00           .16   in 2018            
Hourly Rain Rate   .00   .00           2.58   in 2018            
Month Precipitation   .03   .07   1.28   -1.25   4.98   in 1970   T   in 1912  
Year Precipitation   6.78   7.26   4.95   +1.83   12.38   in 1979   1.28   in 2007  
Snow   0.0   0.0   0.4   -0.4   12.8   in 1994            
Snow Depth   0   0   2   -2   26   in 1978            
Month Snow   0.0   T   3.6   -3.6   26.3   in 1978   0.0   in 2024  
Season Snow   6.6   2.3   20.7   -14.1   51.0   in 1996   2.3   in 2023  
    February 11, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   95%   74%   83%   +12%   100%   in 2018   45%   in 1991  
Minimum Humidity   59%   41%   52%   +7%   96%   in 2018   24%   in 1962  
Average Humidity   77%   58%   68%   +9%   98%   in 2018   38%   in 1991  
Maximum Barometer   29.89   30.28   30.12   -00.23   30.94   in 1906   29.39   in 1970  
Minimum Barometer   29.78   29.92   29.78   +00.00   30.28   in 2019   28.98   in 1970  
Average Barometer   29.84   30.10   29.95   -00.12   30.47   in 1988   29.19   in 1970  
Average Wind   7.0   9.0   8.4   -1.4   22.3   in 1973   2.3   in 1985  
Direction   NW   WNW   WNW       NNE   N  
High Wind Gust   21   35   27   -6   58   in 1955   12   in 1985  
Direction   NW   NW   NW       SSE   S  
Maximum Water Temp   42.6   42.6   38.5   +4.1   44.0   in 2012   34.6   in 2015  
Minimum Water Temp   41.0   41.0   36.6   +4.4   42.8   in 2012   33.4   in 2019  
Average Water Temp   41.8   41.8   37.5   +4.3   43.4   in 2012   34.1   in 2015  
Sunrise/ AM Twilight   6:45:59 AM   6:15:24 AM            
Sunset / PM Twilight   5:13:04 PM   5:43:28 PM            
Length Of Day   10:27:05                          
Special Conditions   None                              
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