Portsmouth Rhode Island Weather Almanac
Wednesday, April 14, 2021
Cloudy early then Partly Cloudy, Light Winds and Warm
Climate Normal Period Climate Record Period  
1991- 2020   1893 - 2021  
    April 14, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Temperature   56   59   55   +1   79   in 1945   40   in 1996  
Minimum Temperature   42   46   39   +3   51   in 2002   28   in 1957  
Average Temperature   49   53   47   +2   63   in 1945   34   in 1923  
 Month Avg Max Temperature   56.2   53.5   52.5   +3.7   62.9   in 1945   44.2   in 2003  
Month Avg Min Temperature   38.1   39.4   37.2   +0.9   43.4   in 2010   29.3   in 1982  
Month Average Temperature   47.4   46.6   45.1   +2.3   53.1   in 2010   38.5   in 1907  
HDD   16   12   18   -2   31   in 1923   2   in 1945  
Month HDD   246   257   278   -32   371   in 1907   167   in 2010  
Season HDD   4566   4482   4928   -362   6005   in 1918   4099   in 2012  
CDD   0   0   0   +0   0   in     0   in    
Month CDD   0   0   0   +0   0   in     0   in    
Year CDD   0   0   0   +0   0   in     0   in    
Maximum Dew Point   44   51   42   +2   58   in 2019   20   in 1963  
Minimum Dew Point   39   31   29   +10   49   in 2019   2   in 1992  
Average  Dew Point   42   41   36   +6   54   in 2019   15   in 1963  
 Month Avg Max Dew Point   42.1   42.8   40.3   +1.9   48.5   in 2010   29.5   in 1965  
Month Avg Min Dew Point   27.9   30.9   26.9   +1.1   36.0   in 2010   13.5   in 1982  
Month Average Dew Point   35.0   36.9   33.6   +1.5   42.3   in 2010   22.1   in 1982  
Precipitation   .00   .00   .14   -.14   3.14   in 1895            
One Hour   .00   .00           .19   in 1979            
Hourly Rate   .00   .00           .21   in 2004            
Month Precipitation   .85   2.80   2.03   -1.18   5.72   in 1983   .03   in 1963  
Year Precipitation   9.27   13.56   13.49   -4.22   24.99   in 1983   6.57   in 2012  
Snow   0.0   0.0   0.0   +0.0   3.3   in 1950            
Snow Depth   0   0           T   in 1940            
Month Snow   0.0   0.0   0.5   -0.5   9.6   in 1996   0.0   in 2021  
Season Snow   27.7   12.9   33.5   -5.8   84.1   in 1996   5.0   in 1998  
    April 14, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   90%   95%   85%   +5%   100%   in 2019   48%   in 1976  
Minimum Humidity   58%   38%   43%   +15%   95%   in 2004   14%   in 1992  
Average Humidity   74%   67%   64%   +10%   98%   in 2004   33%   in 1963  
Maximum Barometer   30.08   30.03   30.11   -00.03   30.60   in 1991   29.52   in 1951  
Minimum Barometer   29.93   29.75   29.84   +00.09   30.31   in 2017   28.99   in 1943  
Average Barometer   30.01   29.89   29.97   +00.03   30.39   in 2000   29.35   in 1953  
Average Wind   4.5   9.7   7.5   -3.0   17.7   in 1953   3.4   in 1980  
Wind Direction   SSE   SSW   SSE       N         ENE        
High Wind Gust   18   28   25   -7   46   in 1953   14   in 1970  
Gust Direction   S   NNW   S       N         S        
High Heat Index                                      
Wind Chill   42   40   32   +10             17   in 1959  
Maximum Water Temp   47.3   44.1   46.7   +0.6   51.9   in 2010   43.2   in 2004  
Minimum Water Temp   45.8   41.0   43.7   +2.1   49.7   in 2010   39.2   in 2003  
Average Water Temp   46.6   42.6   45.2   +1.4   50.8   in 2010   41.6   in 2003  
Sunrise/ AM Twilight   6:04:41 AM   5:35:59 AM            
Sunset / PM Twilight   7:25:43 PM   7:54:25 PM            
Length Of Day   13:19:00                          
Special Conditions   None                              
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