Climatological Report (Daily)
Issued by NWS

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
939
CDUS42 KKEY 202140
CLIMTH

CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
540 PM EDT THU AUG 20 2026

...................................

...THE MARATHON CLIMATE SUMMARY FOR AUGUST 20 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         90   1203 PM  95    2010  92     -2       93
                                      2012
                                      2022
  MINIMUM         85    721 AM  70    1963  80      5       82
  AVERAGE         88                        86      2       88

PRECIPITATION (IN)
  TODAY            T             2.96 2023   0.16  -0.16     0.00
  MONTH TO DATE    0.40                      3.23  -2.83     2.56
  SINCE JUN 1      4.91                     11.23  -6.32    10.24
  SINCE JAN 1     15.76                     21.37  -5.61    15.68

DEGREE DAYS
 HEATING
  TODAY            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
  TODAY           23                        21      2       23
  MONTH TO DATE  418                       420     -2      420
  SINCE JUN 1   1662                      1627     35     1627
  SINCE JAN 1   3234                      3250    -16     3311
...................................................................

WIND (MPH)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     5.1

SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2

WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN

RELATIVE HUMIDITY (PERCENT)
 HIGHEST    82
 LOWEST     70
 AVERAGE    76

..........................................................

THE MARATHON CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   92        97      1952
 MINIMUM TEMPERATURE (F)   80        71      1975

SUNRISE AND SUNSET
AUGUST 20 2026........SUNRISE   701 AM EDT   SUNSET   754 PM EDT
AUGUST 21 2026........SUNRISE   701 AM EDT   SUNSET   753 PM EDT

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$