492  
CDUS42 KKEY 212020  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
420 PM EDT TUE MAY 21 2024  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR MAY 21 2024
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 87 1153 AM 92 2008 88 -1 92  
2019  
2023  
MINIMUM 79 632 AM 69 1954 76 3 78  
1994  
AVERAGE 83 82 1 85  
 
PRECIPITATION (IN)  
TODAY T 2.47 2018 0.12 -0.12 T  
MONTH TO DATE 7.08 2.07 5.01 1.14  
SINCE MAR 1 11.61 5.51 6.10 5.07  
SINCE JAN 1 15.58 8.85 6.73 6.55  
 
DEGREE DAYS  
HEATING  
TODAY 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  
TODAY 18 17 1 20  
MONTH TO DATE 391 338 53 377  
SINCE MAR 1 1156 1039 117 1346  
SINCE JAN 1 1561 1445 116 2016    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 4.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85  
LOWEST 70  
AVERAGE 78  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 93 2008  
MINIMUM TEMPERATURE (F) 76 69 1951  
 
SUNRISE AND SUNSET  
MAY 21 2024...........SUNRISE 638 AM EDT SUNSET 804 PM EDT  
MAY 22 2024...........SUNRISE 637 AM EDT SUNSET 805 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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