851  
CDUS42 KKEY 192017  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
417 PM EDT FRI MAY 19 2023  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR MAY 19 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 92 1242 PM 94 1957 88 4 90  
MINIMUM 75 156 PM 68 1951 76 -1 76  
AVERAGE 84 82 2 83  
 
PRECIPITATION (IN)  
TODAY 0.15 1.59 1972 0.11 0.04 0.28  
MONTH TO DATE 0.24 1.83 -1.59 1.40  
SINCE MAR 1 4.17 5.27 -1.10 3.36  
SINCE JAN 1 5.65 8.61 -2.96 5.59  
 
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 44 71 -27 30  
 
COOLING  
TODAY 19 17 2 18  
MONTH TO DATE 338 304 34 326  
SINCE MAR 1 1307 1005 302 1211  
SINCE JAN 1 1977 1411 566 1687    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 3.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90  
LOWEST 58  
AVERAGE 74  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 92 2008  
MINIMUM TEMPERATURE (F) 76 68 1956  
 
SUNRISE AND SUNSET  
MAY 19 2023...........SUNRISE 639 AM EDT SUNSET 803 PM EDT  
MAY 20 2023...........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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