Climatological Report (Monthly) Issued by NWS Key West, FL
000
CXUS52 KKEY 011450
CLMEYW
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
1050 AM EDT SUN OCT 01 2023
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...THE KEY WEST CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1871 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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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 09/14 92 09/23
09/24
LOWEST 72 09/24 73 09/08
AVG. MAXIMUM 90.4 89.0 1.4 88.5
AVG. MINIMUM 80.5 79.2 1.3 78.3
MEAN 85.4 84.1 1.3 83.4
DAYS MAX >= 90 17 9.6 7.4 8
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 8.77 7.24 1.53 12.06
DAILY AVG. 0.29 0.24 0.05 0.40
DAYS >= .01 16 15.8 0.2 15
DAYS >= .10 11 10.2 0.8 10
DAYS >= .50 5 4.0 1.0 6
DAYS >= 1.00 4 1.9 2.1 5
GREATEST
24 HR. TOTAL 2.47 09/24 TO 09/24
DEGREE DAYS
HEATING TOTAL 0 0 0 0
SINCE 7/1 0 0 0
COOLING TOTAL 620 573 47 559
SINCE 1/1 4619 4009 610
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WIND (MPH)
AVERAGE WIND SPEED 7.1
HIGHEST WIND SPEED/DIRECTION 41/230 DATE 09/24
HIGHEST GUST SPEED/DIRECTION 59/230 DATE 09/24
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.27
NUMBER OF DAYS FAIR 23
NUMBER OF DAYS PC 6
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 75
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 15 MIXED PRECIP 0
HEAVY RAIN 10 RAIN 10
LIGHT RAIN 19 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 15 FOG W/VIS <= 1/4 MILE 1
HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
KEY WEST DAILY RECORDS, SEPTEMBER 2023 AND 2023-TO-DATE
RECORD SEP 2023 2023
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MAXIMUM TEMPERATURE 5 26
COOL MAXIMUM TEMPERATURE 0 0
WARM MINIMUM TEMPERATURE 6 51
MINIMUM TEMPERATURE 1 1
RAINFALL 1 2
TOP 10 WARMEST SEPTEMBERS ON RECORD FOR KEY WEST
RANKING YEAR AVERAGE (DEG F)
======= ==== ===============
1 2018 85.8
2 2020 85.6
3 2023 85.4 <---
4 1951 85.2
5 1989 85.1
1872 85.1
7 2007 85.0
2003 85.0
9 2015 84.9
2011 84.9
1987 84.9
BT/NB