Portsmouth Rhode Island Weather Almanac  
Monday, January 1, 2024  
Cloudy early then Partly Cloudy, Light Winds, Cool  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    January 1, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   43   54   40   +3   59   in 1966   12   in 1918  
Minimum Temperature   29   39   27   +2   48   in 2022   -2   in 1918  
Average Temperature   36   47   34   +2   51   in 2022   5   in 1918  
 Month Avg Max Temperature   43.0   54.0   40.0   +3.0   59.0   in 1966   12.0   in 1918  
Month Avg Min Temperature   29.0   39.0   27.0   +2.0   48.0   in 2022   -2.0   in 1918  
Month Average Temperature   36.0   47.0   34.0   +2.0   51.0   in 2022   5.0   in 1918  
High Heat Index                   #N/A   in #N/A            
Low Wind Chill   24   35   15   +9             -16   in 2018  
Heating Degree Days   29   18   31   -2   60   in 1918   14   in 2022  
Month Heating DD   29   18   32   -3   60   in 1918   14   in 2022  
Season Heating DD   1706   1711   1902   -196   2507   in 1918   1349   in 2016  
Cooling Degree Days   0   0   0   +0       in     0   in Many  
Month Cooling DD   0   0   0   +0   3   in 2022   0   in Many  
Year Cooling DD   726   784   609   +117   871   in 2020   290   in 1902  
Maximum Dew Point   32   51   33   -1   54   in 2019   -1   in 2018  
Minimum Dew Point   26   33   17   +9   48   in 2022   -13   in 1999  
Average  Dew Point   29   42   25   +4   51   in 2022   -4   in 2018  
 Month Avg Max Dew Point   32.0   51.0   33.0   -1.0   54.0   in 2019   -1.0   in 2018  
Month Avg Min Dew Point   26.0   33.0   17.0   +9.0   48.0   in 2022   -13.0   in 1999  
Month Average Dew Point   29.0   42.0   25.0   +4.0   51.0   in 2022   -4.0   in 2018  
Precipitation   .00   .14   .12   -.12   1.56   in 2007            
One Hour Rain   .00   .10           .39   in 1995            
Half Hour Rain   .00   .06           .18   in 2019            
Hourly Rain Rate   .00   .16           1.09   in 2007            
Month Precipitation   .00   .14   .12   -.12   1.56   in 2007   .00   in 2024  
Year Precipitation   .00   .14   .12   -.12   1.56   in 2007   .00   in 2024  
Snow   0.0   0.0   0.3   -0.3   6.2   in 1938            
Snow Depth   0   0   1   -1   13   in 1948            
Month Snow   0.0   0.0   0.3   -0.3   6.2   in 1938   0.0   in 2024  
Season Snow   0.1   1.5   7.4   -7.3   24.0   in 1899   T   in 2000  
    January 1, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   92%   99%   86%   +6%   100%   in 2022   55%   in 1965  
Minimum Humidity   63%   58%   55%   +8%   99%   in 2022   23%   in 1992  
Average Humidity   78%   79%   70%   +7%   100%   in 2022   44%   in 1965  
Maximum Barometer   30.05   30.01   30.18   -00.13   30.87   in 1947   29.62   in 1977  
Minimum Barometer   29.97   29.65   29.82   +00.15   30.45   in 1984   29.08   in 1949  
Average Barometer   30.01   29.83   30.00   +00.01   30.52   in 1991   29.43   in 1977  
Average Wind   4.6   8.0   8.2   -3.6   20.5   in 1969   1.6   in 1981  
Direction   NW   WNW   NW       WNW N
High Wind Gust   15   26   27   -12   52   in 1969   10   in 1981  
Direction   NW   NW   WNW       WNW N
Maximum Water Temp   46.8   45.1   42.7   +4.1   50.4   in 2007   36.0   in 2018  
Minimum Water Temp   45.0   43.9   40.4   +4.6   47.8   in 2007   32.4   in 2013  
Average Water Temp   45.9   44.5   41.6   +4.3   49.1   in 2007   34.3   in 2018  
Sunrise/ AM Twilight   7:11:39 AM   6:40:28 AM            
Sunset / PM Twilight   4:25:39 PM   4:57:20 PM            
Length Of Day   16:25:26                          
Special Conditions   None                              
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