Portsmouth Rhode Island Weather Almanac  
Tuesday, April 4, 2023  
Partly Cloudy to Cloudy, Light Rain PM, Much Warmer   Partly Cloudy to Cloudy, Light Rain PM, Much Warmer
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    April 4, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   62   55   51   +11   65   in 1974   32   in 2016  
Minimum Temperature   44   37   36   +8   48   in 1974   14   in 1954  
Average Temperature   53   46   44   +9   57   in 1974   26   in 1954  
 Month Avg Max Temperature   53.5   54.3   50.8   +2.8   61.5   in 1986   38.0   in 1911  
Month Avg Min Temperature   38.3   37.5   35.8   +2.5   42.8   in 2000   23.0   in 1954  
Month Average Temperature   46.0   46.0   43.8   +2.3   51.8   in 1945   32.0   in 1911  
High Heat Index                                      
Low Wind Chill   42   30   28   +14             3   in 1954  
Heating Degree Days   12   19   21   -9   39   in 1954   8   in 1974  
Month HDD   76   76   85   -9   126   in 1954   53   in 1945  
Season HDD   4143   4376   4735   -592   5758   in 1918   3934   in 2012  
Cooling Degree Days   0   #N/A   0   +0   0   in     0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   54   38   39   +15   60   in 1974   11   in 1965  
Minimum Dew Point   42   27   26   +16   48   in 1974   -1   in 1954  
Average  Dew Point   48   33   32   +16   54   in 1974   5   in 1954  
 Month Avg Max Dew Point   48.8   41.0   38.8   +10.0   51.0   in 2010   14.5   in 1965  
Month Avg Min Dew Point   25.5   25.3   25.3   +0.3   39.3   in 2010   5.3   in 1965  
Month Average Dew Point   37.1   33.1   32.0   +5.1   45.1   in 2010   9.9   in 1965  
Precipitation   .06   T   .15   -.09   1.66   in 2017            
One Hour   .05   T           .39   in 2007            
Hourly Rate   .37   .00           1.54   in 2007            
Month Precipitation   .65   .29   .60   +.05   2.99   in 1973   .00   in 2010  
Year Precipitation   14.15   13.19   12.06   +2.09   21.34   in 1998   6.44   in 2012  
Snow   0.0   0.0   0.1   -0.1   4.2   in 2016       in    
Snow Depth   0   0           5   in 1915       in    
Month Snow   0.0   0.0   0.4   -0.4   7.9   in 1915   0.0   in 2023  
Season Snow   9.1   34.2   33.4   -24.3   78.0   in 2005   5.0   in 1998  
    April 4, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   98%   89%   87%   +11%   100%   in 2018   39%   in 1996  
Minimum Humidity   73%   35%   49%   +24%   95%   in 1988   16%   in 1996  
Average Humidity   86%   62%   68%   +18%   98%   in 1988   28%   in 1996  
Maximum Barometer   30.22   29.97   30.03   +00.19   30.62   in 1991   29.29   in 1975  
Minimum Barometer   30.04   29.74   29.70   +00.34   30.34   in 1962   28.83   in 1975  
Average Barometer   30.13   29.86   29.86   +00.27   30.43   in 1962   29.06   in 1975  
Average Wind   6.3   8.8   8.8   -2.5   19.3   in 1975   3.1   in 1966  
Direction   SW   NW   WNW       NW SE
High Wind Gust   21   26   28   -7   58   in 1963   14   in 2001  
Direction   SSW   NNW   WNW       WNW SSE
Maximum Water Temp   47.7   45.5   43.7   +4.0   50.7   in 2010   39.9   in 2003  
Minimum Water Temp   44.4   43.5   41.5   +2.9   47.3   in 2010   38.2   in 2003  
Average Water Temp   46.1   44.5   42.6   +3.5   49.0   in 2010   39.1   in 2003  
Sunrise/ AM Twilight   6:23:24 AM   5:53:09 AM            
Sunset / PM Twilight   7:13:26 PM   7:42:57 PM            
Length Of Day   12:50:02                          
Special Conditions   None                              
Comments   Fog  
Hour-by-Hour Weather For April 4, 2023            
Climate Weather for April 4            
Weather History For April 4            
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