Portsmouth Rhode Island Weather Almanac  
Friday, March 10, 2023  
Cl;ear early, Partly Cloudy Day to Cloudy PM, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    March 10, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   47   49   44   +3   67   in 2016   27   in 2003  
Minimum Temperature   30   28   29   +1   51   in 2016   9   in 1984  
Average Temperature   39   39   37   +2   59   in 2016   18   in 1984  
 Month Avg Max Temperature   46.0   45.8   42.4   +3.6   52.8   in 1974   32.0   in 1916  
Month Avg Min Temperature   31.8   29.6   27.9   +3.9   36.7   in 1974   16.8   in 1950  
Month Average Temperature   39.1   38.1   35.5   +3.6   45.1   in 1974   25.7   in 1978  
High Heat Index                                      
Low Wind Chill   27   27   18   +9             -6   in 1929  
Heating Degree Days   26   26   28   -2   47   in 1984   6   in 2016  
Month HDD   259   269   295   -36   393   in 1978   199   in 1974  
Season HDD   3569   3839   4121   -552   5140   in 1918   3422   in 2016  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   35   36   33   +2   52   in 2002   0   in 1984  
Minimum Dew Point   25   25   18   +7   45   in 2016   -6   in 1987  
Average  Dew Point   30   31   26   +4   48   in 2016   -3   in 1984  
 Month Avg Max Dew Point   34.0   39.1   32.5   +1.5   40.1   in 1998   16.7   in 1978  
Month Avg Min Dew Point   23.2   18.0   17.2   +6.0   30.3   in 1998   -0.8   in 1950  
Month Average Dew Point   28.8   28.6   25.2   +3.6   35.2   in 1998   11.8   in 1978  
Precipitation   .00   .00   .14   -.14   2.44   in 1994            
One Hour   .00   .00           .29   in 1994            
Hourly Rate   .00   .00           .65   in 2019            
Month Precipitation   1.34   .59   1.31   +.03   5.08   in 1994   .00   in 1894  
Year Precipitation   10.47   9.98   8.41   +2.06   18.83   in 1979   2.98   in 1980  
Snow   0.0   0.0   0.2   -0.2   5.3   in 2017       in    
Snow Depth   0   1           15   in 2015       in    
Month Snow   0.1   0.5   2.2   -2.1   18.4   in 1941   0.0   in 2011  
Season Snow   9.1   34.2   29.5   -20.4   74.5   in 1996   4.7   in 1998  
    March 10, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   94%   94%   84%   +10%   100%   in 2019   45%   in 1987  
Minimum Humidity   58%   48%   48%   +10%   96%   in 1994   19%   in 1995  
Average Humidity   76%   71%   66%   +10%   98%   in 1994   37%   in 1987  
Maximum Barometer   30.16   30.18   30.14   +00.02   30.88   in 1996   29.37   in 1969  
Minimum Barometer   29.75   30.02   29.82   -00.07   30.68   in 1996   29.09   in 1969  
Average Barometer   29.96   30.10   29.98   -00.03   30.78   in 1996   29.23   in 1969  
Average Wind   5.5   3.7   8.3   -2.8   17.2   in 1987   2.9   in 2015  
Direction   SSW   NW   NW       N S
High Wind Gust   23   14   26   -3   52   in 1974   12   in 1952  
Direction   SSW   SSE   NW       NW SW
Maximum Water Temp   42.8   42.1   39.6   +3.2   44.0   in 2012   35.0   in 2003  
Minimum Water Temp   41.0   40.6   37.9   +3.1   42.3   in 1998   33.0   in 2005  
Average Water Temp   41.9   41.4   38.8   +3.1   43.1   in 2012   34.3   in 2005  
Sunrise/ AM Twilight   6:05:30 AM   5:35:43 AM            
Sunset / PM Twilight   5:45:49 PM   6:14:42 PM            
Length Of Day   11:40:19                          
Special Conditions   None                              
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