Portsmouth Rhode Island Weather Almanac
Friday, January 29, 2021
Clear to Partly Cloudy PM, Windy and Bitter Cold
Climate Normal Period Climate Record Period  
1991- 2020   1893 - 2021  
    January 29, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Temperature   18   40   37   -19   58   in 2002   18   in 2021  
Minimum Temperature   8   28   22   -14   41   in 2002   5   in 1934  
Average Temperature   13   34   30   -17   50   in 2002   12   in 1926  
 Month Avg Max Temperature   39.3   43.3   37.9   +1.3   45.4   in 1913   27.9   in 2004  
Month Avg Min Temperature   27.1   29.8   24.0   +3.0   32.2   in 1932   12.4   in 1982  
Month Average Temperature   33.4   36.8   31.0   +2.4   38.8   in 1932   21.7   in 2004  
Precipitation   .00   .00   .11   -.11   1.27   in 1973            
One Hour   .00   .00           .26   in 1990            
Hourly Rate   .00   .00           .22   in 2006            
Month Precipitation   1.96   2.03   3.45   -1.49   12.04   in 1979   .78   in 1955  
Year Precipitation   1.96   2.03   3.45   -1.49   12.04   in 1979   .78   in 1955  
Snow   0.0   0.0   0.3   -0.3   5.6   in 1909            
Month Snow   3.7   3.8   9.4   -5.7   33.8   in 2005   T   in 1950  
Season Snow   11.7   12.2   16.5   -4.8   46.0   in 2005   0.8   in 2007  
Snow Depth   1   0           27   in 2005            
HDD   52   31   35   +17   53   in 1926   15   in 2002  
Month HDD   916   818   986   -70   1256   in 2004   759   in 1932  
Season HDD   2564   2698   2850   -286   3683   in 1918   2241   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 29, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Dew Point   5   23   27   -22   50   in 1950   4   in 1955  
Minimum Dew Point   -4   8   11   -15   39   in 2002   -11   in 1962  
Average  Dew Point   1   16   19   -18   42   in 2002   -3   in 1962  
 Month Avg Max Dew Point   23.9   32.4   30.1   -6.2   37.8   in 1950   15.6   in 1981  
Month Avg Min Dew Point   18.7   20.4   14.0   +4.7   23.5   in 2017   -1.2   in 1982  
Month Average Dew Point   21.4   27.8   22.0   -0.7   30.4   in 2006   7.4   in 1981  
Maximum Humidity   65%   66%   85%   -20%   100%   in 2016   54%   in 1965  
Minimum Humidity   48%   34%   47%   +1%   86%   in 2013   24%   in 2005  
Average Humidity   57%   50%   65%   -9%   89%   in 1973   42%   in 1962  
Maximum Barometer   30.11   30.17   30.15   -00.04   30.73   in 1988   29.21   in 1979  
Minimum Barometer   29.86   29.87   29.88   -00.02   30.41   in 1988   29.00   in 1979  
Average Barometer   29.99   30.02   30.02   -00.03   30.57   in 1988   29.11   in 1979  
Average Wind   16.8   10.3   7.5   +9.3   19.1   in 2010   2.4   in 2005  
Direction   NW   N   WNW       WNW         WSW        
High Wind Gust   41   20   24   +17   72   in 1926   10   in 1969  
Direction   NW   NNW   WNW       W         ENE        
High Heat Index                                      
Wind Chill   -11   18   14   -25             -12   in 1977  
Maximum Water Temp   40.3   37.2   39.0   +1.3   45.3   in 2007   33.8   in 2004  
Minimum Water Temp   36.3   35.9   36.1   +0.2   42.5   in 2012   #N/A   in 2010  
Average Water Temp   38.3   36.6   37.5   +0.8   43.4   in 2007   32.7   in 2004  
Sunrise/ AM Twilight   6:58:31 AM   6:29:10 AM            
Sunset / PM Twilight   4:58:34 PM   5:27:55 PM            
Length Of Day   10:00:03                          
Special Conditions   None                              
Comments   Low maximum temp of 18°, tied for record low from 1929  
Hour-by-Hour Weather For January 29, 2021  
Climate Weather for January 29  
Weather History For January 29  
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