Portsmouth Rhode Island Weather Almanac
Wednesday, May 1, 2019
Mostly Cloudy early then Cloudy, Light Rain & Fog Late, Light Winds, Continued Cool
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    May 1, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   55   61   60   -5   77   in 2001   44   in 1950  
Minimum Temperature   40   43   44   -4   54   in 1983   33   in 2000  
Average Temperature   48   52   52   -4   64   in 2001   42   in 1950  
Precipitation   .02   T   .14   -.12   1.28   in 1953            
One Hour   .02   T           .45   in 1953            
Snow   0.0   0.0   T   +0.0   T   in 1995            
Snow Depth   0   0               in 2019            
HDD   17   13   13   +4   23   in 1950   1   in 2001  
CDD   0   0   0   +0   0   in              
Maximum Dew Point   47   47   47   -0   58   in 2017   23   in 1952  
Minimum Dew Point   34   40   34   -0   47   in 2014   12   in 1974  
Average  Dew Point   41   44   41   +0   52   in 2004   20   in 1978  
Maximum Humidity   95%   88%   86%   +9%   100%   in 2017   45%   in 1952  
Minimum Humidity   46%   60%   48%   -2%   93%   in 2014   19%   in 2007  
Average Humidity   71%   74%   67%   +3%   97%   in 2014   34%   in 1952  
Maximum Barometer   30.49   30.06   30.10   +00.39   30.57   in 1934   29.63   in 1968  
Minimum Barometer   30.23   29.95   29.85   +00.38   30.35   in 2013   29.32   in 1968  
Average Barometer   30.36   30.01   29.97   +00.39   30.41   in 2013   29.48   in 1968  
Average Wind   5.0   5.7   7.2   -2.2   14.4   in 1983   3.1   in 1989  
Direction   S   SSE   S       S         ESE        
High Wind Gust   18   13   24   -6   43   in 1974   13   in 2018  
Direction   S   WNW   S       NW         WNW        
High Heat Index                   77   in 2001            
Wind Chill   40                         26   in 2000  
Maximum Water Temp   48.2   48.2   51.4   -3.2   58.8   in 2007   46.3   in 2014  
Minimum Water Temp   45.7   44.8   48.3   -2.6   53.6   in 2007   44.0   in 2015  
Average Water Temp   47.0   46.5   49.8   -2.9   56.2   in 2007   45.6   in 2015  
Sunrise/ AM Twilight   5:41:16 AM   5:11:08 AM            
Sunset / PM Twilight   7:43:17 PM   8:13:25 PM            
Length Of Day   14:02:01                          
Special Conditions   Fog                                  
Comments      
    May 1, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   55.0   61.0   60.0   -5.0   77.0   in 2001   44.0   in 1950  
Avg Minimum Temperature   40.0   43.0   44.0   -4.0   54.0   in 1983   33.0   in 2000  
Average Temperature   48.0   52.0   52.0   -4.0   64.0   in 2001   42.0   in 1950  
Total Precipitation   .02   T   .14   -.12   1.28   in 1953   .00   in 2015  
Total Snow   0.0   0.0   T   +0.0   T   in 1995   0.0   in    
Total HDD   17   13   13   +4   23   in 1950   1   in 2001  
Total CDD   0   0   0   +0   0   in 2019   0   in 2019  
Avg Maximum Dew Point   47.0   47.0   47.2   -0.2   58.0   in 2017   23.0   in 1952  
Avg Minimum Dew Point   34.0   40.0   34.2   -0.2   47.0   in 2014   12.0   in 1974  
Average  Dew Point   41.0   44.0   40.7   +0.3   52.0   in 2004   20.0   in 1978  
    May 1, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   17.68   20.81   17.05   +.63   31.21   in 1983   7.53   in 1985  
Total Snow (since Jul 1 18)   21.1   45.6   31.8   -10.7   84.1   in 1996   5.0   in 1998  
Total HDD (since Jul 1 18)   5227   5114   5316   -89   6271   in 1904   4305   in 2012  
Total CDD (since Jan 1)   0   0   0   +0   13   in 1976   0   in 2019  
                             
Hour-by-Hour Weather For May 1, 2019  
Climate Weather for May 1  
Weather History For May 1  
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