Stark County climate

Stark County Frost Dates and Growing Season

NOAA 1991-2020 normals for Theodore Roosevelt AP, 10.9 km from Stark County, elevation 2580 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Theodore Roosevelt AP. 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 May 18 and the first fall freeze around September 25, a growing season of about 129 days.

Median at 36°F
last May 29, first September 16
Median at 32°F
last May 18, first September 25
Median at 28°F
last May 8, first October 3

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°FJun 12Jun 6Jun 3May 31May 29May 27May 24May 21May 16
32°FMay 31May 27May 24May 21May 18May 16May 13May 9May 6
28°FMay 22May 17May 13May 10May 8May 5May 3May 1Apr 26
24°FMay 10May 6May 3May 1Apr 28Apr 25Apr 21Apr 18Apr 13
20°FMay 1Apr 26Apr 22Apr 19Apr 17Apr 14Apr 10Apr 7Apr 3
16°FApr 22Apr 17Apr 13Apr 11Apr 8Apr 5Apr 2Mar 30Mar 21

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 3Sep 7Sep 11Sep 14Sep 16Sep 18Sep 21Sep 24Sep 28
32°FSep 12Sep 17Sep 20Sep 22Sep 25Sep 27Sep 30Oct 3Oct 7
28°FSep 22Sep 26Sep 28Oct 1Oct 3Oct 5Oct 8Oct 12Oct 16
24°FSep 28Oct 2Oct 5Oct 8Oct 12Oct 14Oct 17Oct 21Oct 25
20°FOct 5Oct 11Oct 14Oct 17Oct 20Oct 23Oct 26Oct 30Nov 4
16°FOct 14Oct 19Oct 22Oct 25Oct 28Oct 31Nov 3Nov 6Nov 12

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°F1271201161121091051019589
32°F146140137133129125121116110
28°F166160155151147144140136129
24°F185179174171166163158153146
20°F206198193189185181177173165
16°F223215211207202198194189182

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
8,471
Cooling degree days, base 65°F
419
Growing degree days, base 40°F
3,878
Growing degree days, base 45°F
2,920
Growing degree days, base 50°F
2,094
Growing degree days, base 55°F
1,399
Growing degree days, base 60°F
834

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January1,50700
February1,27100
March1,07405
April704028
May3849160
June12449379
July30167603
August47154573
September23439283
October659258
November1,04105
December1,39800

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 10.9 km from Stark County. 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 USW00024012 (Theodore Roosevelt AP). Public domain.