598  
CDUS42 KKEY 180541  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
1241 AM EST MON DEC 18 2023  
   
...............................  
 
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 17 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 77 1215 PM 86 1971 78 -1 81  
2016  
MINIMUM 68 1159 PM 49 1952 68 0 73  
AVERAGE 73 73 0 77  
 
PRECIPITATION (IN)  
YESTERDAY 0.56 2.24 2006 0.07 0.49 0.33  
MONTH TO DATE 3.37 1.32 2.05 1.05  
SINCE DEC 1 3.37 1.32 2.05 1.05  
SINCE JAN 1 47.35 38.84 8.51 32.54  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 5 -5 0  
SINCE DEC 1 0 5 -5 0  
SINCE JUL 1 0 6 -6 0  
 
COOLING  
YESTERDAY 8 8 0 12  
MONTH TO DATE 157 153 4 219  
SINCE DEC 1 157 153 4 219  
SINCE JAN 1 6027 5024 1003 5701    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 13.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100  
LOWEST 85  
AVERAGE 93  
   
......................................................  
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 88 2016  
MINIMUM TEMPERATURE (F) 67 50 1982  
 
SUNRISE AND SUNSET  
DECEMBER 18 2023......SUNRISE 703 AM EST SUNSET 539 PM EST  
DECEMBER 19 2023......SUNRISE 703 AM EST SUNSET 540 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab FL Page
Main Text Page