Climatological Report (Monthly)
Issued by NWS
Issued by NWS
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