Portsmouth Rhode Island Weather Almanac  
Monday, February 12, 2024  
Partly Cloudy to Mostly Cloudy PM, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    February 12, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   46   47   39   +7   55   in 2022   8   in 1914  
Minimum Temperature   30   32   25   +5   41   in 2009   -6   in 1914  
Average Temperature   38   40   32   +6   48   in 1999   1   in 1914  
 Month Avg Max Temperature   42.9   42.3   38.2   +4.8   46.0   in 1991   23.4   in 1899  
Month Avg Min Temperature   30.4   23.4   24.0   +6.4   33.3   in 2020   9.1   in 1934  
Month Average Temperature   36.8   33.2   31.5   +5.3   39.3   in 2020   17.1   in 1934  
High Heat Index                   #N/A   in #N/A            
Low Wind Chill   26   29   8   +18             -21   in 1914  
Heating Degree Days   27   25   33   -6   64   in 1914   17   in 1999  
Month Heating DD   338   382   402   -64   575   in 1934   308   in 2020  
Season Heating DD   3005   2876   3321   -316   4281   in 1918   2661   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   35   35   30   +5   52   in 1999   -9   in 1979  
Minimum Dew Point   27   21   13   +14   35   in 1998   -21   in 1967  
Average  Dew Point   31   28   22   +9   43   in 1999   -14   in 1979  
 Month Avg Max Dew Point   33.4   33.2   29.0   +4.4   39.3   in 2018   7.2   in 1979  
Month Avg Min Dew Point   24.0   11.4   12.4   +11.6   26.2   in 2020   -4.8   in 1979  
Month Average Dew Point   29.0   22.4   22.0   +7.0   32.2   in 2020   1.2   in 1979  
Precipitation   .00   .01   .12   -.12   2.66   in 1988            
One Hour Rain   .00   .01           .57   in 1988            
Half Hour Rain   .00   .01           .06   in 2019            
Hourly Rain Rate   .00   .00           .28   in 2019            
Month Precipitation   .03   .08   1.40   -1.37   4.98   in 1970   T   in 1912  
Year Precipitation   6.78   7.27   5.07   +1.71   12.38   in 1979   1.28   in 2007  
Snow   0.0   0.0   0.4   -0.4   9.8   in 1897            
Snow Depth   0   0   2   -2   26   in 1978            
Month Snow   0.0   T   4.0   -4.0   26.3   in 1978   0.0   in 2024  
Season Snow   6.6   2.3   21.1   -14.5   51.0   in 1996   2.3   in 2023  
    February 12, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   91%   91%   81%   +10%   100%   in 2018   50%   in 1991  
Minimum Humidity   60%   49%   48%   +12%   90%   in 1963   22%   in 1987  
Average Humidity   76%   70%   64%   +11%   95%   in 1963   38%   in 1991  
Maximum Barometer   29.93   30.24   30.14   -00.21   30.86   in 1938   29.53   in 2009  
Minimum Barometer   29.76   29.79   29.77   -00.01   30.42   in 2001   29.12   in 1955  
Average Barometer   29.85   30.02   29.96   -00.11   30.58   in 2001   29.35   in 2009  
Average Wind   5.2   4.8   8.8   -3.6   21.5   in 1952   2.9   in 1965  
Direction   NNW   WSW   WNW       WNW   SSE  
High Wind Gust   14   18   28   -14   55   in 1952   14   in 2024  
Direction   S   WNW   WNW       WNW   S  
Maximum Water Temp   42.6   41.7   38.2   +4.4   43.7   in 2006   34.4   in 2015  
Minimum Water Temp   41.7   40.6   36.6   +5.1   41.7   in 2024   33.2   in 2014  
Average Water Temp   42.2   41.2   37.4   +4.8   42.2   in 2024   33.9   in 2015  
Sunrise/ AM Twilight   6:44:43 AM   6:14:10 AM            
Sunset / PM Twilight   5:14:20 PM   5:44:40 PM            
Length Of Day   10:29:37                          
Special Conditions   None                              
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Hour-by-Hour Weather For February 12, 2024            
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