622
CDUS42 KKEY 170531
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
131 AM EDT MON AUG 17 2026
...............................
..THE MARATHON CLIMATE SUMMARY FOR AUGUST 16 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 91 122 PM 95 1989 92 -1 90
1993
MINIMUM 84 1159 PM 70 1952 80 4 80
AVERAGE 88 86 2 85
PRECIPITATION (IN)
YESTERDAY 0.00 2.03 2003 0.18 -0.18 0.06
MONTH TO DATE 0.40 2.56 -2.16 2.47
SINCE JUN 1 4.91 10.56 -5.65 10.15
SINCE JAN 1 15.76 20.70 -4.94 15.59
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 23 21 2 20
MONTH TO DATE 334 336 -2 333
SINCE JUN 1 1578 1543 35 1540
SINCE JAN 1 3150 3166 -16 3224
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 10.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77
LOWEST 61
AVERAGE 69
......................................................
THE MARATHON CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 92 96 1993
MINIMUM TEMPERATURE (F) 80 70 1953
SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE 700 AM EDT SUNSET 757 PM EDT
AUGUST 18 2026........SUNRISE 700 AM EDT SUNSET 756 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