Gentry County climate

Gentry County Frost Dates and Growing Season

NOAA 1991-2020 normals for Albany, 7.9 km from Gentry County, elevation 875 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Albany. 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 17 and the first fall freeze around October 21, a growing season of about 185 days.

Median at 36°F
last April 27, first October 10
Median at 32°F
last April 17, first October 21
Median at 28°F
last April 9, first October 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°FMay 8May 4May 2Apr 30Apr 27Apr 24Apr 21Apr 18Apr 14
32°FApr 30Apr 25Apr 22Apr 19Apr 17Apr 14Apr 11Apr 8Apr 5
28°FApr 22Apr 18Apr 14Apr 11Apr 9Apr 6Apr 3Mar 31Mar 25
24°FApr 15Apr 9Apr 6Apr 3Mar 31Mar 29Mar 24Mar 20Mar 13
20°FApr 6Apr 1Mar 29Mar 24Mar 20Mar 16Mar 12Mar 8Mar 3
16°FMar 28Mar 21Mar 16Mar 13Mar 10Mar 7Mar 3Mar 1Feb 25

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 25Sep 30Oct 4Oct 7Oct 10Oct 13Oct 16Oct 18Oct 22
32°FOct 6Oct 12Oct 16Oct 18Oct 21Oct 23Oct 25Oct 28Oct 31
28°FOct 18Oct 22Oct 25Oct 27Oct 29Nov 1Nov 2Nov 5Nov 9
24°FOct 26Oct 30Nov 1Nov 4Nov 6Nov 9Nov 11Nov 15Nov 21
20°FNov 1Nov 5Nov 8Nov 11Nov 14Nov 17Nov 21Nov 26Dec 1
16°FNov 9Nov 13Nov 17Nov 21Nov 24Nov 28Dec 1Dec 5Dec 11

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°F182177173169165162158153146
32°F202197192189185182178172165
28°F221215210207204200196191185
24°F242234228224220216212208200
20°F262253247243239234229222214
16°F280272265261256252247242234

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
5,804
Cooling degree days, base 65°F
1,205
Growing degree days, base 40°F
5,960
Growing degree days, base 45°F
4,755
Growing degree days, base 50°F
3,681
Growing degree days, base 55°F
2,732
Growing degree days, base 60°F
1,906

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January1,25400
February99805
March751447
April4149148
May14681408
June8246688
July2384848
August2325787
September73135514
October34320204
November722031
December1,09301

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 7.9 km from Gentry County. 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 USC00230051 (Albany). Public domain.