Portsmouth Rhode Island Weather Almanac  
Friday, April 29, 2022  
Clear to Partly Cloudy PM, Continued Dry and Windy, Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2022
    April 29, 2022   Record   Record  
Observed Daily Data   2022   2021   Norm   Depart   Highest   Lowest  
Maximum Temperature   58   56   60   -2   82   in 1903   43   in 1898  
Minimum Temperature   39   48   43   -4   52   in 2017   30   in 1992  
Average Temperature   49   52   52   -3   65   in 1903   40   in 1909  
 Month Avg Max Temperature   56.8   56.8   55.0   +1.8   61.0   in 1976   48.4   in 1907  
Month Avg Min Temperature   40.6   39.6   39.2   +1.3   43.0   in 2010   33.8   in 1943  
Month Average Temperature   48.9   48.4   47.4   +1.5   51.7   in 2010   41.9   in 1907  
High Heat Index                                      
Low Wind Chill   32   48   37   -5             23   in 1992  
Heating Degree Days   16   13   13   +3   25   in 1909   0   in 1903  
Month HDD   467   480   510   -43   671   in 1907   386   in 2010  
Season HDD   4767   4800   5160   -393   6242   in 1904   4271   in 2012  
Cooling Degree Days   0   0   0   +0   0   in         in    
Month CDD   0   0   0   +0   13   in 1976       in    
Year Cooling Degree Days   0   0   0   +0   13   in 1976       in    
Maximum Dew Point   28   55   48   -20   63   in 2017   27   in 1967  
Minimum Dew Point   17   46   35   -18   48   in 2017   10   in 2012  
Average  Dew Point   23   51   41   -18   56   in 2017   22   in 1977  
 Month Avg Max Dew Point   43.6   43.0   42.8   +0.8   47.6   in 2017   34.2   in 1965  
Month Avg Min Dew Point   29.4   30.4   29.6   -0.2   37.3   in 2017   20.3   in 1982  
Month Average Dew Point   36.5   36.7   36.1   +0.3   42.4   in 2017   28.7   in 1975  
Precipitation   .00   .02   .14   -.14   2.19   in 1980            
One Hour   .00   .01           .94   in 1980            
Hourly Rate   .00   .00           1.35   in 2008            
Month Precipitation   3.50   3.27   4.13   -.63   11.94   in 1983   .47   in 1963  
Year Precipitation   16.40   11.69   15.59   +.81   31.21   in 1983   7.53   in 1985  
Snow   0.0   0.0   0.0   +0.0   1.3   in 1909       in    
Snow Depth   0   0           0   in         in    
Month Snow   0.0   T   0.5   -0.5   9.6   in 1996   0.0   in 2022  
Season Snow   34.2   27.5   33.5   +0.7   84.1   in 1996   5.0   in 1998  
    April 29, 2022     Record Record
Observed Daily Data   2022   2021   Norm   Depart   Highest Lowest
Maximum Humidity   47%   98%   87%   -40%   100%   in 2011   47%   in 2022  
Minimum Humidity   24%   86%   49%   -25%   91%   in 1956   16%   in 2012  
Average Humidity   36%   92%   68%   -33%   95%   in 1958   36%   in 2022  
Maximum Barometer   30.05   29.80   30.07   -00.02   30.51   in 2001   29.71   in 1987  
Minimum Barometer   29.90   29.39   29.83   +00.07   30.38   in 2001   29.25   in 1987  
Average Barometer   29.98   29.60   29.95   +00.02   30.45   in 2001   29.48   in 1987  
Average Wind   11.7   4.0   7.0   +4.7   13.4   in 1958   2.3   in 2007  
Direction   NW   SSE   N       E         SSE        
High Wind Gust   31   27   24   +7   42   in 2010   12   in 2007  
Direction   NW   SW   SW       WNW         ESE        
Maximum Water Temp   49.3   48.7   50.2   -0.9   55.6   in 2007   43.5   in 2020  
Minimum Water Temp   47.1   46.6   47.1   -0.0   52.5   in 2012   40.5   in 2020  
Average Water Temp   48.2   47.7   48.7   -0.5   53.6   in 2012   42.0   in 2020  
Sunrise/ AM Twilight   5:44:35 AM   5:13:14 AM            
Sunset / PM Twilight   7:40:53 PM   8:11:57 PM            
Length Of Day   13:56:18                          
Special Conditions   None                              
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