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

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CXUS52 KKEY 011811 CCA
CLMEYW

CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE KEY WEST, FL
120 PM EDT MON MAY 1 2017

CORRECTED TO ADD REMARKS SECTION

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

...THE KEY WEST CLIMATE SUMMARY FOR THE MONTH OF APRIL 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              91   04/27/1881
 LOW               48   04/02/1987
HIGHEST            85   04/30                         85  04/29
                        04/28
                        04/03
LOWEST             64   04/09                         68  04/08
AVG. MAXIMUM     81.6              81.3     0.3     81.3
AVG. MINIMUM     73.8              71.6     2.2     72.7
MEAN             77.7              76.4     1.3     77.0
DAYS MAX >= 90      0               0.0     0.0        0
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        13.14   1941
 MINIMUM         0.00   1959
TOTALS           3.88              2.05    1.83     1.40
DAILY AVG.       0.13              0.07    0.06     0.05
DAYS >= .01         7               4.5     2.5        6
DAYS >= .10         5               2.8     2.2        2
DAYS >= .50         2               1.3     0.7        1
DAYS >= 1.00        2               0.6     1.4        1

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   04/30 TO 04/30

DEGREE_DAYS
HEATING TOTAL       0                 0       0        0
 SINCE 7/1          5                73     -68       24
COOLING TOTAL     388               344      44      368
 SINCE 1/1       1234               954     280     1021
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              12.6
HIGHEST WIND SPEED/DIRECTION    26/100    DATE  04/30
HIGHEST GUST SPEED/DIRECTION    33/100    DATE  04/30

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           22
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       4
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       7     FOG W/VIS <= 1/4 MILE      0
HAZE                      2

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

$$

IT WAS AN ABOVE NORMAL TEMPERATURE AND RAINFALL MONTH FOR KEY WEST,
WITH BOTH CATEGORIES COMING IN ON THE PLUS SIDE. A TOTAL OF FOUR
TEMPERATURE RECORDS WERE SET OR TIED WITHIN THE FIRST FIVE DAYS OF
APRIL, ALL BEING WARM MINIMUM TEMPERATURES. APRIL 2017 MARKED THE
11TH CONSECUTIVE MONTH WHERE THE AVERAGE TEMPATURE WAS AT OR ABOVE
NORMAL AS MAY 2016 WAS THE LAST BELOW NORMAL MONTH. YEAR TO DATE,
KEY WEST SITS WITH AN AVERAGE TEMPERATURE OF 75.0F WHICH RANKS AS A
TIE FOR THE 16TH WARMEST START TO THE YEAR ON RECORD AND THE WARMEST
START IN THE LAST 20 YEARS.

RAINFALL WISE, IT WAS WETTER THAN NORMAL FOR THE MONTH, BUT MOST OF
THE RAINFALL WAS COMPRISED ON TWO DAYS, 1.86 INCHES ON 4/13 AND
1.15" ON 4/22. THE 3.88 INCHES OBSERVED RANKS AS THE 17TH WETTEST
APRIL ON RECORD. YEAR TO DATE, THE TOTAL RAINFALL OBSERVED IN KEY
WEST IS 7.86 INCHES, WHICH IS JUST 0.23 INCHES ABOVE NORMAL. SO FAR
THIS SPRING, 4.81 INCHES OF RAIN HAS FALLEN, COMING IN AS THE 29TH
WETTEST SPRING TO DATE.

LOOKING AHEAD TO MAY, THE CLIMATE PREDICTION CENTER`S OUTLOOK
INDICATES PROBABILITIES FAVORING ABOVE NORMAL TEMPERATURES FOR MUCH
OF THE SOUTHEAST AND THE FLORIDA KEYS. NO REAL SIGNALS EXIST IN
TERMS OF RAINFALL. NORMAL HIGH AND LOW TEMPERATURES FOR KEY WEST
DURING MAY ARE 85F AND 76F RESPECTIVIELY, WHILE 3.00 INCHES OF RAIN
TYPICALLY FALLS. RAINFALL AND TEMPERATURE RECORDS IN KEY WEST DATE
BACK TO 1871 AND 1872 RESPECTIVELY.

FLING



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