Portsmouth Rhode Island Weather Almanac  
Friday, March 3, 2023  
Clear early, Partly Cloudy Day to Mostly Cloudy PM, Light Snow/Fog Late, Colder  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    March 3, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   46   42   42   +4   60   in 1991   21   in 1950  
Minimum Temperature   32   24   27   +5   45   in 2020   5   in 1950  
Average Temperature   39   33   35   +4   51   in 2020   13   in 1950  
 Month Avg Max Temperature   45.3   44.0   41.3   +4.0   56.3   in 1991   28.0   in 1912  
Month Avg Min Temperature   33.3   25.3   27.0   +6.3   38.7   in 1902   11.3   in 1980  
Month Average Temperature   39.3   35.0   34.7   +4.7   47.0   in 1991   20.7   in 1980  
High Heat Index                                      
Low Wind Chill   24   12   17   +7             -15   in 1950  
Heating Degree Days   26   32   30   -4   52   in 1950   14   in 2020  
Month HDD   77   90   91   -14   133   in 1980   54   in 1991  
Season HDD   3387   3660   3917   -530   4911   in 1905   3255   in 2016  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   32   39   32   +0   53   in 2002   -4   in 1950  
Minimum Dew Point   25   8   17   +8   42   in 1991   -18   in 1950  
Average  Dew Point   29   24   25   +4   47   in 1991   -11   in 1950  
 Month Avg Max Dew Point   37.0   39.7   32.0   +5.0   47.0   in 1991   -2.0   in 1980  
Month Avg Min Dew Point   27.3   10.3   16.3   +11.0   34.7   in 1998   -14.7   in 1980  
Month Average Dew Point   32.3   25.0   24.3   +8.0   40.8   in 1991   -8.3   in 1980  
Precipitation   .06   .08   .13   -.07   1.82   in 1994            
One Hour   .00   .05           .35   in 1972            
Hourly Rate   .00   .09           .52   in 2020            
Month Precipitation   .19   .14   .39   -.20   3.01   in 2018   .00   in 2011  
Year Precipitation   9.32   9.53   7.49   +1.83   17.45   in 1979   2.65   in 1980  
Snow   0.1   0.0   0.2   -0.1   5.3   in 1960       in    
Snow Depth   0   0           21   in 2015       in    
Month Snow   0.1   0.0   0.8   -0.7   9.3   in 1959   0.0   in 2022  
Season Snow   9.1   33.7   28.1   -19.0   70.1   in 1996   4.7   in 1998  
    March 3, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   95%   94%   84%   +11%   100%   in 2012   34%   in 1980  
Minimum Humidity   52%   33%   49%   +3%   92%   in 1976   15%   in 1980  
Average Humidity   74%   64%   66%   +7%   96%   in 1976   25%   in 1980  
Maximum Barometer   30.11   30.35   30.11   +00.00   30.70   in 2011   29.58   in 1998  
Minimum Barometer   29.79   29.76   29.73   +00.06   30.39   in 1979   28.72   in 1947  
Average Barometer   29.95   30.06   29.92   +00.03   30.50   in 1979   29.48   in 1968  
Average Wind   7.9   12.5   8.9   -1.0   22.1   in 2018   3.5   in 1965  
Direction   NW   NW   WNW       NNE NNE
High Wind Gust   30   33   28   +2   56   in 1942   12   in 1952  
Direction   NNW   NW   WNW       SE NE
Maximum Water Temp   42.6   41.4   38.9   +3.7   43.0   in 2012   32.5   in 2015  
Minimum Water Temp   41.2   40.3   37.0   +4.2   41.7   in 2012   30.7   in 2015  
Average Water Temp   41.9   40.9   38.0   +3.9   42.4   in 2012   31.6   in 2015  
Sunrise/ AM Twilight   6:16:51 AM   5:47:02 AM            
Sunset / PM Twilight   5:37:44 PM   6:06:47 PM            
Length Of Day   11:20:53                          
Special Conditions   Fog                                  
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