475  
CDUS42 KKEY 230530  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
1230 AM EST SAT DEC 23 2023  
   
...............................  
 
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 22 2023  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1950 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM MM MM 84 1999 77 MM 84  
2022  
MINIMUM MM MM 45 1954 67 MM 69  
1960  
AVERAGE MM 72 MM 77  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.99 1972 0.06 -0.06 0.00  
MONTH TO DATE 3.37 1.68 1.69 2.81  
SINCE DEC 1 3.37 1.68 1.69 2.81  
SINCE JAN 1 47.35 39.20 8.15 34.30  
 
DEGREE DAYS  
HEATING  
YESTERDAY MM 1 MM 0  
MONTH TO DATE 1 8 -7 0  
SINCE DEC 1 1 8 -7 0  
SINCE JUL 1 1 9 -8 0  
 
COOLING  
YESTERDAY MM 8 MM 12  
MONTH TO DATE 167 193 -26 275  
SINCE DEC 1 167 193 -26 275  
SINCE JAN 1 6037 5064 973 5757    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 11.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................  
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 84 2006  
2013  
2015  
MINIMUM TEMPERATURE (F) 67 52 1954  
1960  
 
SUNRISE AND SUNSET  
DECEMBER 23 2023......SUNRISE 705 AM EST SUNSET 542 PM EST  
DECEMBER 24 2023......SUNRISE 706 AM EST SUNSET 542 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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