887
CXUS52 KKEY 020328
CLMMTH

CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
1128 PM EDT MON JUN 1 2026

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

...THE MARATHON CLIMATE SUMMARY FOR THE MONTH OF MAY 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             96   05/14/2019
 LOW              61   05/10/1963
HIGHEST           90   05/31                          90  05/23
                                                          05/31
LOWEST            72   05/04                          74  05/12
                                                          05/14
AVG. MAXIMUM    86.0               87.5    -1.5     86.3
AVG. MINIMUM    77.9               75.8     2.1     79.4
MEAN            81.9               81.7     0.2     82.8
DAYS MAX >= 90     1                7.4    -6.4        2
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       15.66   2020
 MINIMUM           T   1989
TOTALS          4.89               3.36    1.53     2.33
DAILY AVG.      0.16               0.11    0.05     0.08
DAYS >= .01       15                7.9     7.1        5
DAYS >= .10       10                4.6     5.4        3
DAYS >= .50        3                2.1     0.9        2
DAYS >= 1.00       2                1.1     0.9        1
GREATEST
 24 HR. TOTAL   2.52   05/03 TO 05/04


DEGREE DAYS
HEATING TOTAL      0                  0       0        0
 SINCE 7/1       112                 71      41       31
COOLING TOTAL    533                516      17      562
 SINCE 1/1      1572               1623     -51     1684
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.1
HIGHEST WIND SPEED/DIRECTION    22/090    DATE  05/17
                                22/100          05/19
HIGHEST GUST SPEED/DIRECTION    34/100    DATE  05/18

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.24
NUMBER OF DAYS FAIR           25
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     77

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN               10     RAIN                      10
LIGHT RAIN               16     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      13     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, MAY 2026 AND 2026

RECORD                    MAY 2026     2026
======                    ========   ========
MAXIMUM TEMPERATURE           0          0
COOL MAXIMUM TEMPERATURE      0          7
WARM MINIMUM TEMPERATURE      3          4
MINIMUM TEMPERATURE           0          2
RAINFALL                      1          2


ROSS