Portsmouth Rhode Island Weather Almanac
Friday, March 5, 2021
Partly Cloudy early, Clear Day to Partly Cloudy PM,  Dry, Windy and Colder
Climate Normal Period Climate Record Period  
1991- 2020   1893 - 2021  
    March 5, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Temperature   35   52   42   -7   62   in 1974   23   in 1926  
Minimum Temperature   23   36   28   -5   45   in 1974   6   in 1948  
Average Temperature   29   44   35   -6   54   in 1974   15   in 1948  
 Month Avg Max Temperature   40.4   50.2   41.6   -1.2   54.6   in 1991   28.2   in 1912  
Month Avg Min Temperature   23.4   33.8   27.2   -3.8   38.0   in 1974   12.4   in 1950  
Month Average Temperature   32.2   42.2   34.8   -2.6   46.0   in 1991   22.2   in 1912  
HDD   36   21   30   +6   50   in 1948   11   in 1974  
Month HDD   164   114   151   +13   214   in 1912   95   in 1991  
Season HDD   3731   3675   3977   -246   4987   in 1905   3324   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   13   32   32   -19   51   in 2008   -1   in 2017  
Minimum Dew Point   -4   22   17   -21   39   in 1979   -8   in 2017  
Average  Dew Point   5   27   25   -20   44   in 1979   -5   in 2017  
 Month Avg Max Dew Point   26.0   37.0   32.0   -6.0   46.2   in 1991   10.2   in 1980  
Month Avg Min Dew Point   2.8   22.0   16.6   -13.8   33.2   in 1991   -6.0   in 1980  
Month Average Dew Point   14.4   29.5   24.6   -10.2   39.7   in 1991   2.1   in 1980  
Precipitation   .00   .00   .13   -.13   2.00   in 2001            
One Hour   .00   .00           .48   in 1952            
Hourly Rate   .00   .00           4.54   in 2008            
Month Precipitation   .45   .31   .65   -.20   3.06   in 2018   .00   in 1990  
Year Precipitation   5.95   6.12   7.75   -1.80   17.45   in 1979   2.66   in 1980  
Snow   0.0   0.0   0.2   -0.2   8.5   in 2015            
Snow Depth   0   0           18   in 2015            
Month Snow   0.0   0.0   1.2   -1.2   15.3   in 1960   0.0   in 2021  
Season Snow   27.7   12.2   28.5   -0.8   70.1   in 1996   4.7   in 1998  
    March 5, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   55%   81%   85%   -30%   100%   in 2004   44%   in 2017  
Minimum Humidity   19%   34%   52%   -33%   89%   in 1966   17%   in 2017  
Average Humidity   37%   58%   68%   -31%   95%   in 1966   31%   in 2017  
Maximum Barometer   29.86   30.13   30.12   -00.26   30.89   in 1904   29.68   in 1968  
Minimum Barometer   29.68   29.82   29.76   -00.08   30.41   in 2017   29.08   in 2001  
Average Barometer   29.77   29.98   29.94   -00.17   30.45   in 2017   29.53   in 2001  
Average Wind   13.5   9.0   8.8   +4.7   23.6   in 1971   3.3   in 1998  
Direction   NW   WNW   WNW       WNW         NW        
High Wind Gust   34   28   28   +6   56   in 1964   10   in 1967  
Direction   WNW   WNW   NW       SSW         E        
High Heat Index                                      
Wind Chill   11   28   18   -7             -9   in 1978  
Maximum Water Temp   37.2   39.0   38.6   -1.4   43.3   in 2008   32.6   in 2015  
Minimum Water Temp   36.0   36.8   36.6   -0.6   40.6   in 2012   31.4   in 2015  
Average Water Temp   36.6   37.9   37.7   -1.1   41.6   in 2008   32.0   in 2015  
Sunrise/ AM Twilight   6:11:25 AM   5:43:51 AM            
Sunset / PM Twilight   5:41:29 PM   6:09:04 PM            
Length Of Day   11:30:04                          
Special Conditions   None                              
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