Sabina climate

Sabina Frost Dates and Growing Season

NOAA 1991-2020 normals for Wilmington 3 N, 15.7 km from Sabina, elevation 1033 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Wilmington 3 N. 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 April 20 and the first fall freeze around October 20, a growing season of about 180 days.

Median at 36°F
last April 30, first October 8
Median at 32°F
last April 20, first October 20
Median at 28°F
last April 8, first October 31

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°FMay 16May 11May 6May 3Apr 30Apr 28Apr 25Apr 21Apr 17
32°FMay 6May 1Apr 27Apr 23Apr 20Apr 17Apr 14Apr 11Apr 6
28°FApr 25Apr 18Apr 15Apr 12Apr 8Apr 5Apr 2Mar 31Mar 24
24°FApr 12Apr 5Apr 2Mar 31Mar 29Mar 26Mar 22Mar 19Mar 13
20°FApr 2Mar 30Mar 26Mar 23Mar 19Mar 16Mar 12Mar 7Feb 28
16°FMar 26Mar 20Mar 17Mar 12Mar 8Mar 3Feb 28Feb 24Feb 15

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°FSep 24Sep 29Oct 2Oct 5Oct 8Oct 11Oct 14Oct 18Oct 22
32°FOct 5Oct 10Oct 14Oct 17Oct 20Oct 22Oct 25Oct 28Nov 1
28°FOct 17Oct 22Oct 25Oct 29Oct 31Nov 1Nov 5Nov 8Nov 13
24°FOct 29Nov 1Nov 3Nov 6Nov 10Nov 14Nov 18Nov 23Nov 30
20°FNov 4Nov 10Nov 15Nov 19Nov 23Nov 28Dec 2Dec 6Dec 14
16°FNov 15Nov 22Nov 29Dec 2Dec 6Dec 12Dec 18Dec 23Dec 29

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°F178172167163159155151147139
32°F199193188184180176171167160
28°F224216212208204199195190183
24°F252244238233228222217213207
20°F277269262257251246241234226
16°F301292285280274267262255247

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
100% of years
20°F or colder
100% of years
16°F or colder
100% 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
5,572
Cooling degree days, base 65°F
841
Growing degree days, base 40°F
5,583
Growing degree days, base 45°F
4,360
Growing degree days, base 50°F
3,273
Growing degree days, base 55°F
2,319
Growing degree days, base 60°F
1,505

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January1,13804
February95306
March778139
April4179142
May15967381
June21192621
July3257719
August9211666
September8391459
October35314187
November681040
December97808

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 15.7 km from Sabina. 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 USC00339219 (Wilmington 3 N). Public domain.