Portsmouth Rhode Island Weather Almanac
Sunday, February 14, 2021
Cloudy, Light Mix/Snow early, Light Winds and Warmer
Climate Normal Period Climate Record Period  
1991- 2020   1893 - 2021  
    February 14, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Temperature   36   37   39   -3   55   in 1990   12   in 1979  
Minimum Temperature   28   15   25   +3   41   in 1949   -7   in 2016  
Average Temperature   32   26   33   -1   47   in 1949   3   in 2016  
 Month Avg Max Temperature   35.4   43.6   38.3   -2.9   45.4   in 1991   22.9   in 1899  
Month Avg Min Temperature   24.5   32.2   24.1   +0.4   32.2   in 2020   8.1   in 1934  
Month Average Temperature   29.9   37.9   31.6   -1.7   37.9   in 2020   15.9   in 1979  
Precipitation   .01   .00   .12   -.11   1.41   in 2007            
One Hour   .00   .00           .32   in 2000            
Hourly Rate   .00   .00           .64   in 2007            
Month Precipitation   1.30   2.64   1.64   -.34   4.98   in 1970   T   in 1912  
Year Precipitation   3.26   4.68   5.31   -2.05   12.38   in 1979   1.59   in 1980  
Snow   T   0.0   0.4   -0.4   9.3   in 1899            
Month Snow   10.5   0.0   4.8   +5.7   26.3   in 1978   0.0   in 2020  
Season Snow   22.2   12.2   21.9   +0.3   54.4   in 1996   2.8   in 1980  
Snow Depth   3   0           24   in 1978            
HDD   33   39   32   +1   62   in 2016   18   in 1949  
Month HDD   488   373   467   +21   685   in 1979   373   in 2020  
Season HDD   3149   3138   3386   -237   4334   in 1918   2775   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   28   32   30   -2   54   in 2000   -12   in 1979  
Minimum Dew Point   24   -1   14   +10   32   in 2000   -22   in 1979  
Average  Dew Point   26   16   22   +4   43   in 2000   -17   in 1979  
 Month Avg Max Dew Point   28.4   37.8   29.1   -0.8   38.2   in 2018   4.8   in 1979  
Month Avg Min Dew Point   16.0   24.6   12.6   +3.4   24.6   in 2020   -6.6   in 1979  
Month Average Dew Point   22.2   31.2   22.0   +0.2   31.2   in 2020   -0.9   in 1979  
    February 14, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   89%   83%   81%   +8%   100%   in 2000   46%   in 1979  
Minimum Humidity   68%   33%   48%   +20%   92%   in 1984   18%   in 1998  
Average Humidity   79%   58%   64%   +14%   96%   in 1984   37%   in 1998  
Maximum Barometer   30.25   30.55   30.13   +00.12   30.81   in 1981   29.37   in 1991  
Minimum Barometer   30.16   29.80   29.70   +00.46   30.52   in 1981   28.79   in 1940  
Average Barometer   30.21   30.18   29.91   +00.30   30.67   in 1981   29.13   in 1991  
Average Wind   4.9   12.8   8.8   -3.9   15.6   in 1971   1.3   in 1983  
Direction   NNE   N   WNW       W         SSE        
High Wind Gust   17   26   28   -11   50   in 1940   11   in 1983  
Direction   N   N   WNW       NE         SSE        
High Heat Index                                      
Wind Chill   21   1   10   +11             -30   in 2016  
Maximum Water Temp   38.3   36.3   37.9   +0.4   42.4   in 2012   33.9   in 2015  
Minimum Water Temp   36.7   35.3   35.8   +0.9   39.8   in 2012   31.2   in 2003  
Average Water Temp   37.5   35.8   36.9   +0.6   41.1   in 2012   33.0   in 2015  
Sunrise/ AM Twilight   6:39:56 AM   6:11:38 AM            
Sunset / PM Twilight   5:18:44 PM   5:47:02 PM            
Length Of Day   10:38:48                          
Special Conditions   Freezing Rain                          
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