Celebration climate

Celebration Frost Dates and Growing Season

NOAA 1991-2020 normals for Kissimmee 2, 12 km from Celebration, elevation 60 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Kissimmee 2. A median date has an even chance of a later freeze in spring, or an earlier one in fall.

The last spring freeze typically comes around January 28 and the first fall freeze around January 6, a growing season of about 342 days.

Median at 36°F
last February 9, first December 29
Median at 32°F
last January 28, first January 6
Median at 28°F
last January 16, first January 12

Last freeze in spring

The chance of a later freeze than the date shown. At 10 percent, one spring in ten still freezes after the date; planting after the 10 percent date for 32°F is the cautious choice.

Threshold10%20%30%40%50%60%70%80%90%
36°FMar 11Mar 1Feb 23Feb 16Feb 9Feb 4Jan 31Jan 22Jan 10
32°FFeb 25Feb 14Feb 6Feb 1Jan 28Jan 19Jan 12Jan 8Dec 31
28°FFeb 15Feb 7Jan 31Jan 23Jan 16Jan 11Jan 7Jan 5Dec 29
24°F–––––––––
20°F–––––––––
16°F–––––––––

First freeze in fall

The chance of an earlier freeze than the date shown. At 10 percent, one fall in ten freezes before the date.

Threshold10%20%30%40%50%60%70%80%90%
36°FDec 1Dec 10Dec 17Dec 24Dec 29Jan 1Jan 6Jan 13Jan 26
32°FDec 17Dec 25Dec 30Jan 2Jan 6Jan 11Jan 17Jan 28Feb 7
28°FDec 25Jan 1Jan 5Jan 7Jan 12Jan 18Jan 26Feb 1Feb 10
24°F–––––––––
20°F–––––––––
16°F–––––––––

Growing season length

Days between the last spring and first fall freeze at each threshold, with the chance of a season at least that long.

Threshold10%20%30%40%50%60%70%80%90%
36°F346334327320314307301290280
32°F365365359352342334327317305
28°F365365365365365365361348332
24°F365365365365365365365365365
20°F365365365365365365365365365
16°F365365365365365365365365365

How often it gets that cold

The share of years with at least one night at or below each temperature.

36°F or colder
97% of years
32°F or colder
71% of years
28°F or colder
31% of years
24°F or colder
6% of years
20°F or colder
0% of years
16°F or colder
0% of years

Degree days

A degree day is one degree of the daily mean temperature beyond a base, for one day. Heating degree days count cold (the fuel a house burns), cooling degree days heat, growing degree days the warmth a crop needs; each crop has its own base.

Heating degree days, base 65°F
592
Cooling degree days, base 65°F
3,344
Growing degree days, base 40°F
11,878
Growing degree days, base 45°F
10,060
Growing degree days, base 50°F
8,261
Growing degree days, base 55°F
6,511
Growing degree days, base 60°F
4,854

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January19339329
February12354358
March70106502
April12203641
May1361825
June0477927
July05431,008
August05501,015
September0484935
October6329787
November46135539
December14164396

What this means

NOAA computes these from the daily lows at the station over 1991-2020, fitting the dates of each year's last and first freeze to a distribution, so a date can be stated at any level of risk. 36°F is a frost risk for tender plants on a clear, calm night, since the ground cools below the air above it; 32°F is a freeze; 28°F is a hard freeze that kills most annuals.

The station is 12 km from Celebration. Low ground, valleys and open fields freeze earlier and later than a town center or a hillside.

More

Sources

NOAA NCEI U.S. Climate Normals, 1991-2020, annual and seasonal normals for station USC00084625 (Kissimmee 2). Public domain.