Luckey climate

Luckey Frost Dates and Growing Season

NOAA 1991-2020 normals for Bowling Green Wwtp, 12.8 km from Luckey, elevation 675 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Bowling Green Wwtp. 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 22 and the first fall freeze around October 25, a growing season of about 186 days.

Median at 36°F
last May 1, first October 13
Median at 32°F
last April 22, first October 25
Median at 28°F
last April 11, first November 5

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 7May 4May 1Apr 29Apr 26Apr 23Apr 19
32°FMay 7May 2Apr 29Apr 25Apr 22Apr 19Apr 17Apr 13Apr 8
28°FApr 25Apr 21Apr 17Apr 14Apr 11Apr 7Apr 5Apr 2Mar 28
24°FApr 13Apr 8Apr 4Apr 2Mar 31Mar 28Mar 24Mar 20Mar 15
20°FApr 4Mar 31Mar 27Mar 24Mar 19Mar 17Mar 14Mar 10Mar 3
16°FMar 27Mar 20Mar 16Mar 13Mar 10Mar 7Mar 3Feb 28Feb 20

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 30Oct 4Oct 7Oct 10Oct 13Oct 16Oct 20Oct 23Oct 28
32°FOct 12Oct 17Oct 20Oct 23Oct 25Oct 28Oct 31Nov 3Nov 8
28°FOct 22Oct 27Oct 31Nov 2Nov 5Nov 8Nov 11Nov 14Nov 19
24°FNov 1Nov 6Nov 9Nov 12Nov 16Nov 19Nov 23Nov 29Dec 3
20°FNov 10Nov 15Nov 19Nov 23Nov 28Dec 1Dec 4Dec 9Dec 17
16°FNov 19Nov 26Nov 30Dec 3Dec 8Dec 12Dec 16Dec 21Dec 28

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°F183176172168164160156152144
32°F205198193190186182178173166
28°F228221216212208204200194188
24°F252245239235230226221216210
20°F277269262257252247242236228
16°F299290284279273268263256248

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
6,012
Cooling degree days, base 65°F
878
Growing degree days, base 40°F
5,387
Growing degree days, base 45°F
4,218
Growing degree days, base 50°F
3,188
Growing degree days, base 55°F
2,289
Growing degree days, base 60°F
1,519

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January1,21201
February1,02603
March860122
April4866100
May19159344
June24197622
July2281744
August8223680
September8897461
October36915174
November707032
December1,04004

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 12.8 km from Luckey. 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 USC00330862 (Bowling Green Wwtp). Public domain.