Portsmouth Rhode Island Weather Almanac
Sunday, January 20, 2019
Cloudy, Snow early then Heavy Rain and Fog. Thunderstorm,Very Warm early then Bitter Cold Late
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    January 20, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   46   51   36   +10   56   in 1947   15   in 1994  
Minimum Temperature   12   30   22   -10   43   in 1900   -1   in 1971  
Average Temperature   29   41   29   +0   50   in 1900   8   in 1971  
Precipitation   2.28   .00   .12   +2.16   2.28   in 2019            
One Hour   .36   .00           .36   in 2019            
Snow   0.3   0.0   0.3   +0.0   10.4   in 1978            
Snow Depth   T   0           10   in 1936            
HDD   36   24   36   +0   57   in 1971   15   in 1900  
CDD   0       0   +0   0   in              
Maximum Dew Point   45   30   27   +18   52   in 1986   -2   in 1971  
Minimum Dew Point   5   22   11   -6   38   in 1995   -13   in 1971  
Average  Dew Point   25   26   19   +6   44   in 1986   -8   in 1971  
Maximum Humidity   100%   76%   84%   +16%   100%   in 2019   54%   in 1983  
Minimum Humidity   73%   40%   54%   +19%   92%   in 1995   24%   in 2003  
Average Humidity   87%   58%   69%   +18%   96%   in 1995   44%   in 1983  
Maximum Barometer   29.98   29.99   30.08   -00.10   30.89   in 1957   29.49   in 1985  
Minimum Barometer   29.18   29.75   29.76   -00.58   30.54   in 1957   28.93   in 1964  
Average Barometer   29.58   29.87   29.92   -00.34   30.72   in 1957   29.33   in 1986  
Average Wind   14.3   7.9   8.8   +5.5   22.3   in 1961   1.3   in 1990  
Direction   NW   W   WNW       N         SSE        
High Wind Gust   33   25   27   +6   53   in 1978   11   in 2017  
Direction   NNW   SW   WNW       NE         SSW        
High Heat Index                                      
Wind Chill   -6   27   11   -17             -28   in 1971  
Maximum Water Temp   40.6   36.0   39.8   +0.8   47.7   in 2007   35.0   in 1997  
Minimum Water Temp   38.5   32.9   37.6   +0.9   43.2   in 2007   32.9   in 2018  
Average Water Temp   39.6   34.5   38.7   +0.9   45.4   in 2007   34.0   in 1997  
Sunrise/ AM Twilight   7:06:07 AM   6:36:05 AM            
Sunset / PM Twilight   4:46:46 PM   5:16:48 PM            
Length Of Day   9:40:39                          
Special Conditions   Fog, Thunderstorm, Freezing Rain                      
Comments   2nd thunderstorm for date (since 1950), last was in 1964  
    January 20, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   39.0   33.6   37.8   +1.2   46.2   in 2007   26.5   in 1981  
Avg Minimum Temperature   24.9   19.6   23.4   +1.6   32.6   in 1932   9.4   in 1957  
Average Temperature   31.9   26.6   30.4   +1.6   39.4   in 2007   18.0   in 1981  
Total Precipitation   4.05   3.36   2.40   +1.65   7.08   in 1979   .50   in 1902  
Total Snow   0.8   13.2   5.1   -4.3   25.8   in 1996   0.0   in 2007  
Total HDD   659   762   684   -25   934   in 1981   510   in 2007  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   31.2   25.3   29.0   +2.2   41.0   in 2007   12.9   in 1981  
Avg Minimum Dew Point   14.0   11.0   12.4   +1.6   24.8   in 2006   -5.9   in 1981  
Average  Dew Point   22.6   18.1   20.7   +1.9   32.2   in 2006   3.5   in 1981  
    January 20, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   4.05   3.36   2.40   +1.65   7.08   in 1979   .50   in 1902  
Total Snow (since Jul 1 18)   5.2   21.3   13.7   -8.5   41.6   in 1996   0.2   in 1914  
Total HDD (since Jul 1 18)   2588   2567   2635   -47   3290   in 1918   1948   in 2016  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
Hour-by-Hour Weather For January 20, 2019  
Climate Weather for January 20  
Weather History For January 20  
Weather Calendar  
Back To Weather Stat Page  
Home