705
CXUS52 KKEY 041611
CLMMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
1111 AM EST THU JAN 4 2024
...............................
..THE MARATHON CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1950 TO 2024
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 88 12/04/2018
12/19/2016
12/18/2016
LOW 37 12/25/1989
12/24/1989
HIGHEST 87 12/03 85 12/01
12/31
LOWEST 55 12/31 50 12/26
AVG. MAXIMUM 76.3 77.9 -1.6 79.2
AVG. MINIMUM 66.9 67.5 -0.6 68.8
MEAN 71.6 72.7 -1.1 74.0
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 7.94 2015
MINIMUM 0.19 2005
1999
TOTALS 8.58R 2.20 6.38 3.24
DAILY AVG. 0.28 0.07 0.21 0.10
DAYS >= .01 12 8.3 3.7 10
DAYS >= .10 9 3.3 5.7 6
DAYS >= .50 6 1.3 4.7 2
DAYS >= 1.00 3 0.6 2.4 1
GREATEST
24 HR. TOTAL 4.23 12/25 TO 12/26
DEGREE DAYS
HEATING TOTAL 3 17 -14 28
SINCE 7/1 3 18 -15 28
COOLING TOTAL 214 256 -42 316
SINCE 1/1 6084 5127 957 5798
............................................................
WIND (MPH)
AVERAGE WIND SPEED 10.0
HIGHEST WIND SPEED/DIRECTION 30/050 DATE 12/13
30/050 12/14
HIGHEST GUST SPEED/DIRECTION 49/140 DATE 12/16
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.38
NUMBER OF DAYS FAIR 16
NUMBER OF DAYS PC 11
NUMBER OF DAYS CLOUDY 4
AVERAGE RH (PERCENT) 81
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 4 MIXED PRECIP 0
HEAVY RAIN 8 RAIN 9
LIGHT RAIN 11 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 1 SLEET 0
FOG 10 FOG W/VIS <= 1/4 MILE 3
HAZE 9
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
MARATHON DAILY RECORDS, DECEMBER 2023 AND 2023
RECORD DEC 2023 2023
====== ======== ========
MAXIMUM TEMPERATURE 2 84
COOL MAXIMUM TEMPERATURE 0 1
WARM MINIMUM TEMPERATURE 1 54
MINIMUM TEMPERATURE 0 0
RAINFALL 2 10
TOP 10 WETTEST DECEMBERS ON RECORD FOR MARATHON
RANKING YEAR TOTAL (IN.)
======= ==== ===========
1 2023 8.58 <---
2 2015 7.94
3 1958 7.23
4 1997 6.21
5 2006 6.02
6 1986 5.95
7 1957 5.03
8 2019 4.59
9 1985 4.04
10 1959 3.93
TOP 10 WETTEST YEARS ON RECORD FOR MARATHON
RANKING YEAR TOTAL (IN.)
======= ==== ===========
1 1959 70.09
2 2020 64.55
3 1958 63.70
4 1983 63.23
5 1953 57.16
6 2010 53.85
7 1969 52.90
8 2023 52.56 <---
9 2013 52.34
10 1994 51.71
TOP 10 WARMEST YEARS ON RECORD FOR MARATHON
RANKING YEAR AVERAGE (DEG F)
======= ==== ===============
1 2019 81.7
2 2023 81.4 <---
3 2015 80.5
4 2022 80.4
2017 80.4
6 2020 80.1
2013 80.1
8 2002 79.7
9 2018 79.6
10 2011 79.5
ROSS
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