Climatological Report (Monthly)
Issued by NWS Key West, FL

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000
CXUS52 KKEY 021332 CCA
CLMEYW

CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE KEY WEST, FL
927 AM EDT MON OCT 1 2018

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

...THE KEY WEST CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              95   09/20/2018
                        09/03/2007
                        09/02/1956
 LOW               69   09/17/1985
                        09/30/1945
                        09/02/1898
HIGHEST            95R  09/20                         93  09/08
LOWEST             77   09/14                         75  09/28
                        09/08
                        09/04
AVG. MAXIMUM     90.1              87.9     2.2     88.9
AVG. MINIMUM     81.5              78.5     3.0     80.3
MEAN             85.8              83.2     2.6     84.6
DAYS MAX >= 90     19               4.3    14.7       15
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        18.45   1963
 MINIMUM         1.71   1961
TOTALS           6.08              6.71   -0.63     9.28
DAILY AVG.       0.20              0.22   -0.02     0.31
DAYS >= .01        13              16.2    -3.2       12
DAYS >= .10         8              10.5    -2.5        8
DAYS >= .50         5               3.8     1.2        4
DAYS >= 1.00        1               1.7    -0.7        4
GREATEST
 24 HR. TOTAL    2.59   09/14 TO 09/14

SNOWFALL (INCHES)
RECORDS
 TOTAL
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1         0.0               0.0     0.0      0.0
SNOWDEPTH AVG.      0                                  0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0                                  0
 24 HR TOTAL      0.0   09/30 TO 09/30

DEGREE_DAYS
HEATING TOTAL       0                 0       0        0
 SINCE 7/1          0                 0       0        0
COOLING TOTAL     630               546      84      596
 SINCE 1/1       4041              3735     306     4227
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.2
HIGHEST WIND SPEED/DIRECTION    29/120    DATE  09/03
HIGHEST GUST SPEED/DIRECTION    44/110    DATE  09/03

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           28
NUMBER OF DAYS PC              2
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              8     MIXED PRECIP                0
HEAVY RAIN                7     RAIN                        8
LIGHT RAIN               12     FREEZING RAIN               0
LT FREEZING RAIN          0     HAIL                        0
HEAVY SNOW                0     SNOW                        0
LIGHT SNOW                0     SLEET                       0
FOG                       4     FOG W/VIS <= 1/4 MILE       0
HAZE                      3

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

$$

DAILY RECORDS SET OR TIED AT KEY WEST FOR SEPTEMBER 2018 AND
FOR 2018 YEAR-TO-DATE

RECORD                       SEP 2018   2018
======                       ========   ====
MAXIMUM TEMPERATURE              2        6
COOL MAXIMUM TEMPERATURE         0        0
WARM MINIMUM TEMPERATURE        10       26
MINIMUM TEMPERATURE              0        0
RAINFALL                         1        4

IN ADDITION TO RANKING AS THE WARMEST SEPTEMBER ON RECORD,
BY A FACTOR OF 0.6 DEGREES, MONTHLY RECORDS WERE SET OR TIED
ON 4 OCCASIONS LAST MONTH. THE HIGH OF 95 DEGREES ON THE 20TH
TIED THE MONTHLY RECORD FOR MAXIMUM TEMPERATURE, MOST RECENTLY
SET ON SEPTEMBER 3RD, 2007. LOW TEMPERATURES OF 85 DEGREES ON
THE 17TH, 18TH, AND 27TH TIED THE MONTHLY RECORD FOR WARM
MINIMUM TEMPERATURE, MOST RECENTLY SET ON SEPTEMBER 12TH, 2015.


TOP 5 WARMEST SEPTEMBER AVERAGES

                     AVERAGE TEMPERATURE
RANKING    YEAR    (IN DEGREES FAHRENHEIT)
=======    ====    =======================
   1       2018             85.8
   2       1951             85.2
   3       1989             85.1
           1872             85.1
   5       2007             85.0
           2003             85.0

BT/DR


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