Portsmouth Rhode Island Weather Almanac
Tuesday, March 2, 2021
Partly Cloudy early then Clear, Strong Gusty Winds, Very Dry and Very Cold
Climate Normal Period Climate Record Period  
1991- 2020   1893 - 2021  
    March 2, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Temperature   29   52   41   -12   60   in 1985   25   in 1950  
Minimum Temperature   16   25   27   -11   40   in 1991   10   in 1962  
Average Temperature   23   39   35   -12   49   in 1985   18   in 1962  
 Month Avg Max Temperature   38.5   44.0   41.0   -2.5   54.5   in 1991   26.5   in 1980  
Month Avg Min Temperature   22.0   22.5   27.0   -5.0   39.5   in 1902   10.5   in 1980  
Month Average Temperature   30.5   33.5   34.5   -4.0   46.0   in 1902   18.5   in 1980  
HDD   42   26   30   +12   47   in 1962   16   in 1985  
Month HDD   69   63   61   +8   93   in 1980   38   in 1902  
Season HDD   3636   3624   3887   -251   4878   in 1918   3219   in 2016  
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   12   42   32   -20   56   in 1991   4   in 1980  
Minimum Dew Point   -4   13   16   -20   35   in 2004   -12   in 1980  
Average  Dew Point   4   28   24   -20   45   in 1991   -4   in 1980  
 Month Avg Max Dew Point   29.5   28.5   32.0   -2.5   48.5   in 2017   -2.0   in 1980  
Month Avg Min Dew Point   4.0   11.0   16.0   -12.0   34.5   in 2018   -13.5   in 1980  
Month Average Dew Point   16.8   19.8   24.0   -7.3   39.5   in 2018   -7.8   in 1980  
Precipitation   .00   .00   .13   -.13   2.96   in 2018            
One Hour   .00   .00           .69   in 2007            
Hourly Rate   .00   .00           1.79   in 2007            
Month Precipitation   .45   .00   .26   +.19   2.99   in 2018   .00   in 2020  
Year Precipitation   5.95   5.81   7.36   -1.41   17.45   in 1979   2.65   in 1980  
Snow   0.0   0.0   0.3   -0.3   8.8   in 1996            
Snow Depth   0   0           20   in 2015            
Month Snow   0.0   0.0   0.6   -0.6   9.3   in 1959   0.0   in 2021  
Season Snow   27.7   12.2   27.9   -0.2   69.9   in 1996   4.7   in 1998  
    March 2, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   51%   85%   83%   -32%   100%   in 2007   38%   in 1980  
Minimum Humidity   28%   57%   52%   -24%   90%   in 1991   22%   in 1953  
Average Humidity   40%   71%   67%   -27%   95%   in 1991   32%   in 1980  
Maximum Barometer   30.03   30.18   30.04   -00.01   30.68   in 2002   29.44   in 1968  
Minimum Barometer   29.72   29.82   29.71   +00.01   30.27   in 1962   29.04   in 2018  
Average Barometer   29.88   30.00   29.88   -00.00   30.45   in 2002   29.27   in 1968  
Average Wind   20.2   8.8   9.5   +10.7   26.0   in 2018   2.7   in 2001  
Direction   WNW   S   WNW       NNE         ENE        
High Wind Gust   60   26   29   +31   65   in 2018   7   in 1998  
Direction   WNW   S   WNW       NNE         S        
High Heat Index                                      
Wind Chill   -3   21   17   -20             -10   in 1962  
Maximum Water Temp   38.3   36.0   38.8   -0.5   42.7   in 2012   32.5   in 2015  
Minimum Water Temp   37.4   34.5   37.1   +0.3   41.0   in 2012   30.9   in 2015  
Average Water Temp   37.9   35.3   38.0   -0.2   41.9   in 2012   31.7   in 2015  
Sunrise/ AM Twilight   6:16:14 AM   5:48:36 AM            
Sunset / PM Twilight   5:38:01 PM   6:05:39 PM            
Length Of Day   11:21:47                          
Special Conditions   None                              
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