Portsmouth Rhode Island Weather Almanac
Friday, May 1, 2020
Cloudy, Heavy Rain and Foggy Morning, Partly Cloudy PM, Much Warmer
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    May 1, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   65   55   60   +5   77   in 2001   44   in 1950    
Minimum Temperature   50   40   44   +6   54   in 1983   33   in 2000    
Average Temperature   58   48   52   +6   64   in 2001   42   in 1950    
Precipitation   .88   .02   .14   +.74   1.28   in 1953              
One Hour   .19   .02           .45   in 1953              
Snow   0.0   0.0   T   +0.0   T   in 1995              
Snow Depth   0   0               in              
HDD   7   17   13   -6   23   in 1950   1   in 2001    
CDD   0   0   0   +0   0   in                
Maximum Dew Point   58   47   47   +11   58   in 2020   23   in 1952    
Minimum Dew Point   48   34   34   +14   48   in 2020   12   in 1974    
Average  Dew Point   53   41   41   +12   53   in 2020   20   in 1978    
Maximum Humidity   96%   95%   86%   +10%   100%   in 2017   45%   in 1952    
Minimum Humidity   73%   46%   48%   +25%   93%   in 2014   19%   in 2007    
Average Humidity   85%   71%   67%   +17%   97%   in 2014   34%   in 1952    
Maximum Barometer   29.98   30.49   30.10   -00.12   30.57   in 1934   29.63   in 1968    
Minimum Barometer   29.63   30.23   29.85   -00.22   30.35   in 2013   29.32   in 1968    
Average Barometer   29.81   30.36   29.97   -00.17   30.41   in 2013   29.48   in 1968    
Average Wind   9.5   5.0   7.2   +2.3   14.4   in 1983   3.1   in 1989    
Direction   SE   S   S       S         ESE          
High Wind Gust   28   18   24   +4   43   in 1974   13   in 2018    
Direction   SE   S   S       NW         WNW          
High Heat Index                   77   in 2001              
Wind Chill                             26   in 2000    
Maximum Water Temp   43.2   48.2   51.4   -8.2   58.8   in 2007   43.2   in 2020    
Minimum Water Temp   40.8   45.7   48.3   -7.5   53.6   in 2007   40.8   in 2020    
Average Water Temp   42.0   47.0   49.8   -7.8   56.2   in 2007   42.0   in 2020    
Sunrise/ AM Twilight   5:40:18 AM   5:10:05 AM            
Sunset / PM Twilight   7:44:06 PM   8:14:18 PM            
Length Of Day   14:03:48                          
Special Conditions   Dense Fog                              
Comments      
    May 1, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   65.0   55.0   60.0   +5.0   77.0   in 2001   44.0   in 1950  
Avg Minimum Temperature   50.0   40.0   44.0   +6.0   54.0   in 1983   33.0   in 2000  
Average Temperature   58.0   48.0   52.0   +6.0   64.0   in 2001   42.0   in 1950  
Total Precipitation   .88   .02   .14   +.74   1.28   in 1953   .00   in 2015  
Total Snow   0.0   0.0   T   +0.0   T   in 1995   0.0   in    
Total HDD   7   17   13   -6   23   in 1950   1   in 2001  
Total CDD   0   0   0   +0   0   in 2019   0   in 2019  
Avg Maximum Dew Point   58.0   47.0   47.2   +10.8   58.0   in 2017   23.0   in 1952  
Avg Minimum Dew Point   48.0   34.0   34.2   +13.8   47.0   in 2014   12.0   in 1974  
Average  Dew Point   53.0   41.0   40.7   +12.3   52.0   in 2004   20.0   in 1978  
    May 1, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   17.08   17.68   17.18   -.10   31.21   in 1983   7.53   in 1985  
Total Snow (since Jul 1 19)   12.9   21.1   32.1   -19.2   84.1   in 1996   5.0   in 1998  
Total HDD (since Jul 1 19)   4828   5227   5347   -519   6271   in 1904   4305   in 2012  
Total CDD (since Jan 1)   0   0   0   +0.0   13   in 1976   0   in 2020  
                             
Hour-by-Hour Weather For May 1, 2020  
Climate Weather for May 1  
Weather History For May 1  
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