034
CDUS42 KKEY 180530
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
130 AM EDT MON MAY 18 2026
...............................
..THE MARATHON CLIMATE SUMMARY FOR MAY 17 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1950 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 86 345 PM 94 2010 88 -2 86
MINIMUM 78 512 AM 63 1951 76 2 80
AVERAGE 82 82 0 83
PRECIPITATION (IN)
YESTERDAY 0.14 1.49 2012 0.10 0.04 0.00
MONTH TO DATE 3.84 1.61 2.23 1.71
SINCE MAR 1 8.93 5.05 3.88 2.32
SINCE JAN 1 9.80 8.39 1.41 4.82
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 5 -5 0
SINCE JUL 1 112 71 41 31
COOLING
YESTERDAY 17 17 0 18
MONTH TO DATE 281 270 11 282
SINCE MAR 1 1018 971 47 982
SINCE JAN 1 1320 1377 -57 1404
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 12.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87
LOWEST 70
AVERAGE 79
......................................................
THE MARATHON CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 94 1989
MINIMUM TEMPERATURE (F) 76 69 1951
1955
2001
SUNRISE AND SUNSET
MAY 18 2026...........SUNRISE 639 AM EDT SUNSET 803 PM EDT
MAY 19 2026...........SUNRISE 639 AM EDT SUNSET 803 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.
Main Text Page