2000 Annual Climate Summary

KEY WEST CLIMATE STATISTICS FOR
2000

TEMPERATURE

AVG. MONTHLY MAX. 82.7 F AVG. MONTHLY MIN. 72.5 F
DEPARTURE FROM NORMAL + 0.2 F DEPARTURE FROM NORMAL -0.6 F

AVG. YEARLY TEMP. 77.6 F DEPARTURE FROM NORMAL: -0.2 F

HIGHEST MONTHLY AVG. TEMP: 85.1 F MONTH: JULY
LOWEST MONTHLY AVG. TEMP.: 69.9 F MONTH: DECEMBER

AVERAGE MONTHLY TEMPERATURE...

LARGEST POSITIVE DEPARTURE FROM NORMAL: 1.9 F MONTH: MARCH
" NEGATIVE " " " : 1.8 F MONTH: OCTOBER

HIGHEST TEMP.: 93 F DATE: 7/23, 7/24 LOWEST TEMP.: 50 F DATE: 2/11

PRECIPITATION

TOTAL: 34.91 INCHES DEPARTURE FROM NORMAL: - 4.68 INCHES

GREATEST 24 HOUR RAINFALL: 4.61 INCHES DATE: OCTOBER 2/3

GREATEST MONTHLY RAINFALL: 8.84 INCHES MONTH: AUGUST

LEAST MONTHLY RAINFALL: 0.50 INCHES MONTH: JANUARY

LARGEST POSITIVE DEPARTURE FROM NORMAL: 3.81 INCHES MONTH: AUGUST
" NEGATIVE " " " : 2.27 INCHES MONTH: NOVEMBER

NUMBER OF DAYS WITH...

RAINFALL > 0.01 INCHES: 94 (106 NORMAL)
RAINFALL > 0.10 INCHES: 53
RAINFALL > 0.50 INCHES: 22
RAINFALL > 1.00 INCHES: 11 ( 10 NORMAL)

THUNDERSTORMS: 70 (64 NORMAL)

FOG (VIS. < 6 MILES): 75
FOG REDUCING VIS. TO 1/4 MILE OR LESS: 7 (1.2 NORMAL)

SMOKE/HAZE: 6

WATERSPOUTS: 33

MAX. TEMPS. > 90 F: 44 (40 NORMAL)

COLD FRONTAL PASSAGES: 19 (4 IN NOV., DEC.)

TROP. CYCLONES PASSING WITHIN A 50 MILE RADIUS OF EYW: 0

MISCELLANEOUS

HIGHEST BAROMETRIC PRESSURE: 30.49 INCHES 01/15
LOWEST BAROMETRIC PRESSURE: 29.73 INCHES 3/28

HEATING DEGREE DAYS: 45 DEPARTURE: -55
COOLING DEGREE DAYS: 4,758 DEPARTURE: -130

PEAK WIND/DIRECTION: 46 MPH/NW     DATE: 4/8
HIGHEST SUSTAINED WIND/DIR: 39 MPH/NW     DATE: 12/19
HIGHEST AVERAGE DAILY WIND SPEED: 20.4 MPH     DATE: 11/21

RECORDS RECORDS SET OR TIED

FEBRUARY: 11^TH; SET RECORD LOW MINIMUM TEMPERATURE OF 50 F

MARCH: 16^TH; TIED RECORD HIGH MINIMUM TEMPERATURE OF 76 F

28^th; SET DAILY RAINFALL RECORD OF 1.10 INCHES

30^th; TIED MAXIMUM TEMPERATURE OF 86 F

APRIL 8^TH; SET DAILY RECORD RAINFALL OF 1.95 INCHES

28^TH; SET RECORD LOW OF 61 F

MAY 26^TH AND 27^TH; TIED HIGH MINIMUM TEMPERATURE WITH 81 F EACH DAY

31^st; TIED MAXIMUM TEMPERATURE OF 90 F

JULY 15^TH; TIED HIGH MINIMUM TEMPERATURE OF 83 F

16^th; SET HIGH MINIMUM TEMPERATURE OF 84 F

AUGUST: 6^TH; SET DAILY RAINFALL RECORD OF 2.40 INCHES

27^TH; TIED MINIMUM TEMPERATURE OF 72 F

SEPTEMBER: 11^TH; TIED RECORD HIGH MINIMUM TEMPERATURE OF 83 F

22^ND; SET HIGH MINIMUM TEMPERATURE WITH 83 F

23^RD; SET HIGH MINIMUM TEMPERATURE WITH 83 F

OCTOBER: 3^RD; SET DAILY RAINFALL RECORD OF 3.52 INCHES

18^th; SET MINIMUM TEMPERATURE WITH 65 F

SIGNIFICANT WEATHER EVENTS

APRIL: 8^th; 1/4 inch diameter hail fell in Key West from a thunderstorm. This is only the 11^th time on record that Key West has observed hail.

26^th; The last cold front of the 99-00 dry season passed through the Keys.

JULY: 1^ST ; A waterspout moved onshore on the south end of Big Pine Key as a tornado. $15,000 damage to a business but no injuries.

JULY: 27th; Lightning hit a boat just west of Key West, injuring 1 person.

AUGUST: 8^th; Waterspout moved over the Bahia Honda Bridge but did cause any damage or injuries.

16^th; Lightning struck a boat 1 mile south of Duck Key, causing no injuries.

26^th; A 63 mph wind gust from a thunderstorm was observed by a storm spotter approximately 5 miles east of Marathon.

OCTOBER: 9^th; The first cold front of the 00-01 dry season passed through the Keys.

WET SEASON: (May 29-October 9); 26.79 inches of rain fell during the wet season. This is 76.7% of the annual rainfall and normal is 70%

DRY SEASON: (January 1-May 28 and
October 10-Dec. 31) 8.12 inches or 23.3 %, of rain fell during the dry season. 30% is normal.

National Weather Service Weather Forecast Office