Portsmouth Rhode Island Weather Almanac  
Tuesday, May 2, 2023  
Partly Cloudy, Rainbow 6am, Heavy Rain/Thunderstorm Noon, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    May 2, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   55   55   60   -5   85   in 2001   45   in 1953  
Minimum Temperature   47   44   45   +2   58   in 1894   33   in 1895  
Average Temperature   51   50   53   -2   70   in 1894   41   in 1941  
 Month Avg Max Temperature   56.5   60.0   60.0   -3.5   81.0   in 2001   47.5   in 1962  
Month Avg Min Temperature   47.5   42.0   44.5   +3.0   56.0   in 1894   35.0   in 1978  
Month Average Temperature   52.0   51.5   52.5   -0.5   66.5   in 1894   43.5   in 1941  
High Heat Index                   83   in 2001            
Low Wind Chill   44       30   +14             30   in 1941  
Heating Degree Days   14   15   12   +2   24   in 1941   0   in 2018  
Month HDD   26   27   25   +1   43   in 1941   1   in 2001  
Season HDD   4505   4809   5198   -693   6282   in 1904   4319   in 2012  
Cooling Degree Days   0   0   0   -0   5   in 1894       in    
Month CDD   0   0   0   +0   5   in 1894   0   in 2023  
Year CDD   0   0   0   +0   13   in 1976   0   in 2022  
Maximum Dew Point   50   47   49   +1   62   in 1989   25   in 1957  
Minimum Dew Point   43   42   37   +6   51   in 2004   9   in 1974  
Average  Dew Point   47   45   43   +4   55   in 2010   18   in 1974  
 Month Avg Max Dew Point   53.5   45.0   48.5   +5.0   58.0   in 2017   25.5   in 1952  
Month Avg Min Dew Point   43.5   38.5   36.5   +7.0   49.0   in 2004   10.5   in 1974  
Month Average Dew Point   49.0   42.0   42.5   +6.5   53.0   in 2004   23.3   in 1952  
Precipitation   .29   .47   .12   +.17   1.40   in 1989            
One Hour   .16   .31           .65   in 1989            
Hourly Rate   .92   1.60           1.70   in 2017            
Month Precipitation   .33   .47   .25   +.08   1.50   in 1989   .00   in 2018  
Year Precipitation   17.56   16.87   15.98   +1.58   31.21   in 1983   7.90   in 1985  
Snow   0.0   0.0   0.0   +0.0   T   in 1941       in    
Snow Depth   0   0           0   in         in    
Month Snow   0.0   0.0   0.0   +0.0   T   in 1995   0.0   in 2023  
Season Snow   9.1   34.7   33.5   -24.4   84.1   in 1996   5.0   in 1998  
    May 2, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   97%   98%   88%   +9%   100%   in 2019   48%   in 1957  
Minimum Humidity   70%   66%   51%   +19%   89%   in 1998   17%   in 1951  
Average Humidity   84%   82%   69%   +14%   95%   in 1998   34%   in 1957  
Maximum Barometer   29.49   30.16   30.06   -00.57   30.52   in 1903   29.49   in 2023  
Minimum Barometer   29.37   30.07   29.82   -00.45   30.35   in 2013   29.37   in 2023  
Average Barometer   29.43   30.12   29.94   -00.51   30.41   in 2013   29.43   in 2023  
Average Wind   8.4   5.0   7.6   +0.8   14.8   in 2006   3.8   in 2015  
Direction   S   SE   WNW       N S
High Wind Gust   28   15   26   +2   42   in 1997   13   in 1972  
Direction   SSW   SE   NE       WNW NE
Maximum Water Temp   53.2   51.3   51.3   +1.9   58.6   in 2007   45.9   in 2020  
Minimum Water Temp   52.3   48.6   48.0   +4.3   52.3   in 2023   41.9   in 2020  
Average Water Temp   52.8   50.0   49.7   +3.1   55.1   in 2007   43.9   in 2020  
Sunrise/ AM Twilight   5:40:56 AM   5:09:03 AM            
Sunset / PM Twilight   7:43:51 PM   8:15:11 PM            
Length Of Day   14:02:55                          
Special Conditions   Fog, Thunderstorm                          
Comments   Rainbow at 6am  
Hour-by-Hour Weather For May 2, 2023            
Climate Weather for May 2            
Weather History For May 2            
Weather Calendar            
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