Davisboro climate

Davisboro Frost Dates and Growing Season

NOAA 1991-2020 normals for Sandersville, 18.3 km from Davisboro, elevation 451 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Sandersville. 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 19 and the first fall freeze around November 13, a growing season of about 241 days.

Median at 36°F
last April 3, first November 4
Median at 32°F
last March 19, first November 13
Median at 28°F
last March 2, first November 29

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 19Apr 13Apr 9Apr 5Apr 3Mar 31Mar 27Mar 21Mar 16
32°FApr 6Apr 1Mar 29Mar 23Mar 19Mar 16Mar 12Mar 6Feb 27
28°FMar 25Mar 17Mar 13Mar 7Mar 2Feb 27Feb 22Feb 16Feb 7
24°FMar 12Mar 4Feb 27Feb 21Feb 14Feb 7Feb 2Jan 28Jan 15
20°FMar 2Feb 19Feb 10Feb 3Jan 31Jan 28Jan 19Jan 11Jan 2
16°FFeb 18Feb 6Jan 31Jan 30Jan 24Jan 17Jan 12Jan 6Dec 31

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 27Oct 30Nov 1Nov 4Nov 6Nov 9Nov 12Nov 18
32°FNov 1Nov 4Nov 7Nov 10Nov 13Nov 17Nov 21Nov 28Dec 4
28°FNov 8Nov 15Nov 19Nov 24Nov 29Dec 2Dec 7Dec 16Dec 30
24°FNov 20Nov 30Dec 6Dec 13Dec 23Dec 30Jan 4Jan 11Jan 21
20°FDec 7Dec 20Dec 29Jan 2Jan 8Jan 12Jan 18Jan 27Feb 3
16°FDec 29Jan 3Jan 8Jan 12Jan 15Jan 22Jan 28Feb 1Feb 9

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°F240231225220215211206202195
32°F269257251246241235230223215
28°F306293284276269264258251243
24°F340329320313306299293284270
20°F365364352343334330322311300
16°F365365365365365365350336325

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
98% of years
20°F or colder
79% of years
16°F or colder
38% 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
2,430
Cooling degree days, base 65°F
2,045
Growing degree days, base 40°F
8,823
Growing degree days, base 45°F
7,152
Growing degree days, base 50°F
5,624
Growing degree days, base 55°F
4,258
Growing degree days, base 60°F
3,058

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January582272
February451386
March30417221
April12161394
May23207650
June0386835
July0504969
August0464928
September6298742
October10189456
November32813180
December516389

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 18.3 km from Davisboro. 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 USC00097777 (Sandersville). Public domain.