Portsmouth Rhode Island Weather Almanac  
Thursday, January 19, 2023  
Clear early then Cloudy, Heavy Rain & Fog PM, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    January 19, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   41   46   37   +4   58   in 1951   9   in 1994  
Minimum Temperature   35   19   23   +12   41   in 1915   -4   in 1904  
Average Temperature   38   33   30   +8   48   in 1949   5   in 1994  
 Month Avg Max Temperature   44.7   39.4   38.6   +6.1   46.9   in 2007   25.7   in 1981  
Month Avg Min Temperature   33.4   21.8   24.8   +8.6   33.4   in 2023   8.7   in 1981  
Month Average Temperature   39.3   30.7   31.8   +7.5   40.3   in 2007   17.5   in 1981  
High Heat Index                                      
Low Wind Chill   31   12   11   +20             -25   in 1983  
Heating Degree Days   27   32   35   -8   60   in 1994   17   in 1949  
Month HDD   488   651   630   -142   902   in 1981   470   in 2007  
Season HDD   2181   2207   2500   -319   3242   in 1918   1912   in 2016  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   39   38   29   +10   52   in 1986   -6   in 1994  
Minimum Dew Point   32   5   13   +19   38   in 1986   -16   in 1997  
Average  Dew Point   36   22   21   +15   45   in 1986   -10   in 1994  
 Month Avg Max Dew Point   39.5   32.9   31.2   +8.4   42.1   in 2007   12.4   in 1981  
Month Avg Min Dew Point   28.6   10.6   15.1   +13.5   28.6   in 2023   -6.4   in 1981  
Month Average Dew Point   34.2   16.3   23.2   +10.9   34.2   in 2023   3.0   in 1981  
Precipitation   .95   .00   .12   +.83   1.18   in 1931            
One Hour   .27   .00           .43   in 1996            
Hourly Rate   1.02   .00           1.02   in 2023            
Month Precipitation   3.51   2.61   2.30   +1.21   7.08   in 1979   .50   in 1902  
Year Precipitation   3.51   2.61   2.30   +1.21   7.08   in 1979   .50   in 1902  
Snow   0.0   0.0   0.3   -0.3   6.3   in 1936       in    
Snow Depth   0   0           10   in 1965       in    
Month Snow   0.1   4.5   5.7   -5.6   25.8   in 1996   0.0   in 2007  
Season Snow   1.6   5.3   12.8   -11.2   41.6   in 1996   0.2   in 1914  
    January 19, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   82%   83%   +16%   100%   in 2002   53%   in 1992  
Minimum Humidity   74%   48%   53%   +21%   99%   in 1986   22%   in 1990  
Average Humidity   87%   65%   68%   +18%   100%   in 1986   39%   in 1990  
Maximum Barometer   30.04   30.20   30.10   -00.06   30.81   in 1904   29.47   in 1985  
Minimum Barometer   29.54   29.95   29.80   -00.26   30.43   in 1967   29.01   in 1936  
Average Barometer   29.79   30.08   29.95   -00.16   30.56   in 1967   29.39   in 1985  
Average Wind   5.7   9.3   7.8   -2.1   19.3   in 2016   2.0   in 2010  
Direction   NW   SSW   NW       WNW SE
High Wind Gust   23   39   25   -2   54   in 1943   12   in 2009  
Direction   E   SW   NW       NW N
Maximum Water Temp   41.8   40.1   40.5   +1.3   49.1   in 2007   34.9   in 2018  
Minimum Water Temp   40.4   38.1   38.2   +2.2   46.0   in 2007   32.9   in 2018  
Average Water Temp   41.1   39.1   39.3   +1.8   47.6   in 2007   33.9   in 2018  
Sunrise/ AM Twilight   7:07:21 AM   6:36:52 AM            
Sunset / PM Twilight   4:44:31 PM   5:15:11 PM            
Length Of Day   9:37:10                          
Special Conditions   Fog                                  
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