586   
CDUS42 KKEY 202022  
CLIMTH  
  
CLIMATE REPORT   
NATIONAL WEATHER SERVICE KEY WEST FL  
422 PM EDT MON OCT 20 2025  
   
...............................  
  
   
..THE MARATHON CLIMATE SUMMARY FOR OCTOBER 20 2025  
  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
  
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1950 TO 2025  
  
WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST        
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR       
                                                  NORMAL              
...............................................................  
  
TEMPERATURE (F)                                                            
 TODAY                                                                 
  MAXIMUM         MM        MM  92    1989  86     MM       84          
  MINIMUM         MM        MM  63    1955  75     MM       75          
                                      1964                             
  AVERAGE         MM                        80     MM       80         
  
PRECIPITATION (IN)                                                      
  TODAY            0.00          4.33 2014   0.17  -0.17     0.00       
  MONTH TO DATE    8.87                      4.17   4.70     6.49       
  SINCE SEP 1     18.13                     10.54   7.59     9.67       
  SINCE JAN 1     34.73                     34.00   0.73    44.80       
  
DEGREE DAYS                                                             
 HEATING                                                                
  TODAY           MM                         0     MM        0          
  MONTH TO DATE    0                         0      0        0          
  SINCE SEP 1      0                         0      0        0          
  SINCE JUL 1      0                         0      0        0          
  
 COOLING                                                                
  TODAY           MM                        15     MM       15          
  MONTH TO DATE  234                       339   -105      340          
  SINCE SEP 1    782                       913   -131      976          
  SINCE JAN 1   4330                      4383    -53     4644           
...............................................................  
  
WIND (MPH)                                                              
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     E (80)          
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     E (90)          
  AVERAGE WIND SPEED     7.0                                          
  
SKY COVER                                                               
  POSSIBLE SUNSHINE  MM                                                   
  AVERAGE SKY COVER 0.2                                                   
  
WEATHER CONDITIONS                                                      
THE FOLLOWING WEATHER WAS RECORDED TODAY.                               
  NO SIGNIFICANT WEATHER WAS OBSERVED.                                    
  
RELATIVE HUMIDITY (PERCENT)  
 HIGHEST    MM                                                          
 LOWEST     MM                                                          
 AVERAGE    MM                                                          
   
......................................................  
  
THE MARATHON CLIMATE NORMALS FOR TOMORROW  
                         NORMAL    RECORD    YEAR                       
 MAXIMUM TEMPERATURE (F)   85        90      1960                        
                                             2013                       
                                             2019                       
 MINIMUM TEMPERATURE (F)   75        58      1989                        
  
SUNRISE AND SUNSET                                                      
OCTOBER 20 2025.......SUNRISE   725 AM EDT   SUNSET   653 PM EDT       
OCTOBER 21 2025.......SUNRISE   725 AM EDT   SUNSET   652 PM EDT       
  
-  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