662
CXUS52 KKEY 012004
CLMMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
404 PM EDT TUE SEP 1 2026
...............................
..THE MARATHON CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1950 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 98 08/10/1987
08/15/1964
08/22/1952
LOW 67 08/27/1957
HIGHEST 91 08/18 93 08/20
08/19
08/26
08/22
08/30
LOWEST 76 08/12 75 08/07
AVG. MAXIMUM 89.9 91.6 -1.7 90.6
AVG. MINIMUM 81.9 79.7 2.2 81.2
MEAN 85.9 85.6 0.3 85.9
DAYS MAX >= 90 22 27.4 -5.4 25
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 13.12 2008
MINIMUM 1.40 1990
TOTALS 0.51R 5.32 -4.81 3.48
DAILY AVG. 0.02 0.17 -0.15 0.11
DAYS >= .01 8 14.3 -6.3 11
DAYS >= .10 1 8.1 -7.1 6
DAYS >= .50 0 3.2 -3.2 1
DAYS >= 1.00 0 1.4 -1.4 1
GREATEST
24 HR. TOTAL 0.21 08/09 TO 08/09
DEGREE DAYS
HEATING TOTAL 0 0 0 0
SINCE 7/1 0 0 0 0
COOLING TOTAL 657 640 17 657
SINCE 1/1 3473 3470 3 3548
............................................................
WIND (MPH)
AVERAGE WIND SPEED 7.0
HIGHEST WIND SPEED/DIRECTION 24/170 DATE 08/14
HIGHEST GUST SPEED/DIRECTION 39/170 DATE 08/14
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.15
NUMBER OF DAYS FAIR 31
NUMBER OF DAYS PC 0
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 74
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 14 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 1
LIGHT RAIN 11 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 1 FOG W/VIS <= 1/4 MILE 0
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
MARATHON DAILY RECORDS, AUGUST 2026 AND 2026
RECORD AUG 2026 2026
====== ======== ========
MAXIMUM TEMPERATURE 0 0
COOL MAXIMUM TEMPERATURE 0 7
WARM MINIMUM TEMPERATURE 3 17
MINIMUM TEMPERATURE 0 2
RAINFALL 0 2
TOP 10 DRIEST AUGUSTS ON RECORD FOR MARATHON
RANKING YEAR TOTAL (IN.)
======= ==== ===========
1 2026 0.51 <---
2 1990 1.40
3 1975 1.44*
4 1987 1.67
5 2020 1.78
6 1970 1.87
7 1993 1.93
8 2004 1.97
1952 1.97
10 2013 2.18
1956 2.18
*NOTE: AUGUST 1975 IS MISSING RAINFALL OBSERVATIONS
FOR THE 1ST THROUGH 5TH. DURING THIS 5-DAY PERIOD
KEY WEST RECORDED 0.05 INCHES OF RAINFALL.
TOP 10 DRIEST SUMMERS ON RECORD FOR MARATHON
RANKING YEAR TOTAL (IN.)
======= ==== ===========
1 1956 4.20
2 1993 4.57
3 2026 5.02 <---
4 1987 5.44
5 1961 5.77
6 2015 7.15
7 2004 7.40
8 1998 7.57
9 1996 7.75
10 1950 7.76
ROSS
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