Portsmouth Rhode Island Weather Almanac  
Sunday, April 2, 2023  
Partly Cloudy to Clear PM, Windy and Colder  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    April 2, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   52   54   51   +1   72   in 1986   35   in 1911  
Minimum Temperature   36   37   36   +0   45   in 2006   20   in 1919  
Average Temperature   44   46   44   +0   59   in 1986   30   in 1919  
 Month Avg Max Temperature   52.0   56.0   50.5   +1.5   68.0   in 1955   36.0   in 1923  
Month Avg Min Temperature   41.0   38.5   35.5   +5.5   46.5   in 2016   19.0   in 1923  
Month Average Temperature   46.5   47.5   43.5   +3.0   54.0   in 1986   27.5   in 1923  
High Heat Index                                      
Low Wind Chill   30   28   28   +2             12   in 1954  
Heating Degree Days   21   19   21   +0   35   in 1919   6   in 1986  
Month HDD   37   35   43   -6   75   in 1923   22   in 1986  
Season HDD   4104   4335   4693   -589   5715   in 1918   3887   in 2016  
Cooling Degree Days   0   #N/A   0   +0   0   in     0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   47   29   39   +8   54   in 1957   19   in 1982  
Minimum Dew Point   8   20   25   -17   42   in 1953   6   in 1965  
Average  Dew Point   28   25   32   -4   46   in 2016   14   in 2013  
 Month Avg Max Dew Point   49.5   42.5   38.5   +11.0   53.0   in 2016   18.0   in 1965  
Month Avg Min Dew Point   26.5   24.0   25.0   +1.5   45.0   in 2016   5.0   in 1965  
Month Average Dew Point   38.0   33.3   32.0   +6.0   49.0   in 2016   11.5   in 1965  
Precipitation   .00   .00   .15   -.15   2.92   in 1970            
One Hour   .00   .00           .49   in 1973            
Hourly Rate   .00   .00           .91   in 2005            
Month Precipitation   .59   .27   .30   +.29   2.93   in 1970   .00   in 2015  
Year Precipitation   14.09   13.17   11.76   +2.33   21.34   in 1998   6.44   in 2012  
Snow   0.0   0.0   0.1   -0.1   3.2   in 2018       in    
Snow Depth   0   0           7   in 1970       in    
Month Snow   0.0   0.0   0.2   -0.2   5.5   in 1997   0.0   in 2023  
Season Snow   9.1   34.2   33.2   -24.1   78.0   in 2005   5.0   in 1998  
    April 2, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   96%   65%   87%   +9%   100%   in 2005   50%   in 1982  
Minimum Humidity   24%   28%   50%   -26%   94%   in 1959   15%   in 2006  
Average Humidity   60%   47%   68%   -8%   97%   in 1959   37%   in 1982  
Maximum Barometer   30.10   29.99   30.04   +00.06   30.48   in 2019   29.37   in 1966  
Minimum Barometer   29.28   29.78   29.72   -00.44   30.15   in 1960   28.98   in 1973  
Average Barometer   29.69   29.89   29.88   -00.19   30.31   in 2019   29.22   in 1966  
Average Wind   12.9   10.3   8.5   +4.4   17.7   in 1954   2.4   in 1990  
Direction   NW   WNW   NNW       WSW SSE
High Wind Gust   39   34   27   +12   51   in 1954   11   in 2009  
Direction   NNW   WNW   nnw       N SE
Maximum Water Temp   45.5   45.5   43.3   +2.2   49.2   in 2010   39.8   in 2020  
Minimum Water Temp   43.3   43.5   41.0   +2.3   46.0   in 2012   37.4   in 2003  
Average Water Temp   44.4   44.5   42.2   +2.2   46.8   in 2012   38.8   in 2015  
Sunrise/ AM Twilight   6:26:44 AM   5:56:34 AM            
Sunset / PM Twilight   7:11:16 PM   7:40:41 PM            
Length Of Day   12:44:32                          
Special Conditions   None                              
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