Ty Ty climate

Ty Ty Frost Dates and Growing Season

NOAA 1991-2020 normals for Tifton, 16.4 km from Ty Ty, elevation 380 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Tifton. 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 March 11 and the first fall freeze around November 19, a growing season of about 254 days.

Median at 36°F
last March 23, first November 7
Median at 32°F
last March 11, first November 19
Median at 28°F
last February 26, first December 8

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°FApr 10Apr 5Mar 31Mar 28Mar 23Mar 19Mar 15Mar 11Mar 5
32°FMar 29Mar 22Mar 18Mar 14Mar 11Mar 7Mar 3Feb 26Feb 18
28°FMar 16Mar 11Mar 6Mar 2Feb 26Feb 19Feb 12Feb 4Jan 26
24°FMar 6Feb 28Feb 18Feb 9Feb 3Jan 30Jan 23Jan 14Jan 1
20°FFeb 25Feb 10Feb 3Jan 31Jan 25Jan 19Jan 13Jan 7Dec 30
16°FFeb 8Feb 2Jan 31Jan 27Jan 20Jan 15Jan 10Jan 6Jan 1

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°FOct 22Oct 29Nov 1Nov 4Nov 7Nov 11Nov 14Nov 19Nov 26
32°FNov 1Nov 7Nov 11Nov 15Nov 19Nov 25Dec 1Dec 5Dec 14
28°FNov 12Nov 19Nov 28Dec 3Dec 8Dec 14Dec 21Dec 30Jan 8
24°FDec 1Dec 7Dec 16Dec 24Jan 1Jan 5Jan 10Jan 17Feb 1
20°FDec 13Dec 27Jan 1Jan 6Jan 11Jan 15Jan 22Jan 31Feb 9
16°FDec 30Jan 2Jan 6Jan 13Jan 15Jan 22Jan 28Feb 1Feb 7

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°F256247240234229224219213204
32°F287276266260254249242235226
28°F324311301295288281273263254
24°F363348337332324316307299287
20°F365365365362354343334329316
16°F365365365365365365365359339

How often it gets that cold

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

36°F or colder
100% of years
32°F or colder
100% of years
28°F or colder
100% of years
24°F or colder
90% of years
20°F or colder
58% of years
16°F or colder
21% 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
2,080
Cooling degree days, base 65°F
2,082
Growing degree days, base 40°F
9,189
Growing degree days, base 45°F
7,475
Growing degree days, base 50°F
5,879
Growing degree days, base 55°F
4,438
Growing degree days, base 60°F
3,163

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January540288
February3716127
March25719257
April10465414
May13235687
June0380830
July0468933
August0454919
September3318765
October77111501
November27519226
December4396133

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 16.4 km from Ty Ty. Low ground, valleys and open fields freeze earlier and later than a town center or a hillside.

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Sources

NOAA NCEI U.S. Climate Normals, 1991-2020, annual and seasonal normals for station USC00098703 (Tifton). Public domain.