106  
CDUS42 KKEY 200538  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
138 AM EDT MON MAY 20 2024  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR MAY 19 2024
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1950 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 92 137 PM 94 1957 88 4 92  
MINIMUM 84 636 AM 68 1951 76 8 75  
AVERAGE 88 82 6 84  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.59 1972 0.11 -0.11 0.30  
MONTH TO DATE T 1.83 -1.83 0.39  
SINCE MAR 1 4.53 5.27 -0.74 4.32  
SINCE JAN 1 8.50 8.61 -0.11 5.80  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 5 -5 0  
SINCE JUL 1 8 71 -63 44  
 
COOLING  
YESTERDAY 23 17 6 19  
MONTH TO DATE 359 304 55 338  
SINCE MAR 1 1124 1005 119 1307  
SINCE JAN 1 1529 1411 118 1977    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 8.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85  
LOWEST 65  
AVERAGE 75  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 92 2008  
MINIMUM TEMPERATURE (F) 76 68 1956  
 
SUNRISE AND SUNSET  
MAY 20 2024...........SUNRISE 638 AM EDT SUNSET 804 PM EDT  
MAY 21 2024...........SUNRISE 638 AM EDT SUNSET 804 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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