Portsmouth Rhode Island Weather Almanac
Wednesday, January 27, 2021
Cloudy, Light Snow and Fog early, Light Winds and a Little Warmer
Climate Normal Period Climate Record Period  
1991- 2020   1893 - 2021  
    January 27, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Temperature   35   46   37   -2   56   in 2012   12   in 1924  
Minimum Temperature   30   35   23   +7   45   in 1952   0   in 1924  
Average Temperature   33   41   30   +3   50   in 1952   6   in 1924  
 Month Avg Max Temperature   40.3   43.4   38.0   +2.3   46.1   in 1913   28.0   in 2004  
Month Avg Min Temperature   28.1   29.7   24.2   +4.0   32.7   in 1932   12.3   in 1982  
Month Average Temperature   34.5   36.8   31.1   +3.4   39.1   in 1932   21.3   in 1970  
Precipitation   .03   .00   .11   -.08   1.93   in 1894            
One Hour   .00   .00           .51   in 1986            
Hourly Rate   .00   .00           .86   in 2012            
Month Precipitation   1.96   2.03   3.23   -1.27   12.02   in 1979   .78   in 1955  
Year Precipitation   1.96   2.03   3.23   -1.27   12.02   in 1979   .78   in 1955  
Snow   0.2   0.0   0.4   -0.2   19.4   in 1894            
Month Snow   3.7   3.8   8.8   -5.1   33.8   in 2005   T   in 1967  
Season Snow   11.7   12.2   15.9   -4.2   46.0   in 2005   0.5   in 1928  
Snow Depth   3   0           27   in 2005            
HDD   32   24   35   -3   59   in 1924   15   in 1952  
Month HDD   824   761   915   -91   1180   in 1970   698   in 1932  
Season HDD   2472   2641   2780   -308   3593   in 1918   2182   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    
    January 27, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Dew Point   32   34   28   +4   55   in 2012   3   in 1982  
Minimum Dew Point   28   30   11   +17   42   in 1952   -11   in 1994  
Average  Dew Point   30   32   20   +10   47   in 1952   -3   in 1982  
 Month Avg Max Dew Point   25.0   32.4   30.3   -5.3   37.6   in 1950   14.9   in 1981  
Month Avg Min Dew Point   20.0   20.8   14.2   +5.8   23.6   in 2017   -1.7   in 1981  
Month Average Dew Point   22.6   28.3   22.2   +0.4   30.4   in 2006   6.6   in 1981  
Maximum Humidity   95%   83%   84%   +11%   100%   in 2011   55%   in 2006  
Minimum Humidity   85%   60%   51%   +34%   93%   in 1976   22%   in 2006  
Average Humidity   90%   72%   68%   +22%   97%   in 1958   39%   in 2006  
Maximum Barometer   30.03   29.71   30.22   -00.19   30.92   in 1927   29.41   in 1979  
Minimum Barometer   29.84   29.58   29.87   -00.03   30.59   in 1994   28.85   in 1986  
Average Barometer   29.94   29.65   30.03   -00.10   30.71   in 1994   29.16   in 1986  
Average Wind   4.1   6.9   9.0   -4.9   23.4   in 1971   1.2   in 1984  
Direction   NNW   W   NW       W         S        
High Wind Gust   15   18   28   -13   52   in 1971   13   in 1999  
Direction   NE   W   NNW       W         SSW        
High Heat Index                                      
Wind Chill   27   30   11   +16             -16   in 1971  
Maximum Water Temp   42.8   37.7   39.0   +3.8   44.5   in 2012   35.3   in 2005  
Minimum Water Temp   39.9   36.5   36.5   +3.4   42.8   in 2012   32.4   in 2004  
Average Water Temp   41.4   37.1   37.7   +3.6   43.7   in 2012   34.0   in 2004  
Sunrise/ AM Twilight   7:00:21 AM   6:30:51 AM            
Sunset / PM Twilight   4:56:03 PM   5:25:33 PM            
Length Of Day   9:55:42                          
Special Conditions   None  
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