Goodview climate

Goodview Frost Dates and Growing Season

NOAA 1991-2020 normals for Winona Dam 5 A, 3.4 km from Goodview, elevation 663 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Winona Dam 5 A. 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 23 and the first fall freeze around October 21, a growing season of about 180 days.

Median at 36°F
last May 3, first October 10
Median at 32°F
last April 23, first October 21
Median at 28°F
last April 11, first November 1

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 12May 8May 6May 3May 1Apr 28Apr 23Apr 18
32°FMay 6May 2Apr 29Apr 25Apr 23Apr 19Apr 16Apr 12Apr 7
28°FApr 27Apr 22Apr 18Apr 15Apr 11Apr 8Apr 6Apr 3Mar 30
24°FApr 18Apr 11Apr 8Apr 6Apr 3Apr 1Mar 30Mar 24Mar 18
20°FApr 10Apr 5Apr 2Mar 31Mar 28Mar 24Mar 20Mar 16Mar 11
16°FApr 3Mar 30Mar 26Mar 23Mar 19Mar 16Mar 13Mar 9Mar 5

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 27Oct 1Oct 4Oct 7Oct 10Oct 13Oct 15Oct 19Oct 23
32°FOct 7Oct 13Oct 16Oct 19Oct 21Oct 24Oct 27Oct 31Nov 4
28°FOct 19Oct 23Oct 26Oct 29Nov 1Nov 3Nov 6Nov 10Nov 15
24°FOct 30Nov 1Nov 4Nov 7Nov 9Nov 12Nov 15Nov 19Nov 24
20°FNov 4Nov 8Nov 12Nov 14Nov 17Nov 20Nov 23Nov 27Dec 1
16°FNov 10Nov 15Nov 18Nov 21Nov 25Nov 28Nov 30Dec 3Dec 10

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°F178172168163159156152147141
32°F201193189185180177172167161
28°F222216210205201197193188180
24°F240233228223220216212207201
20°F257249244240235232227223217
16°F274264259255251247242238231

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
7,322
Cooling degree days, base 65°F
708
Growing degree days, base 40°F
4,828
Growing degree days, base 45°F
3,767
Growing degree days, base 50°F
2,817
Growing degree days, base 55°F
1,986
Growing degree days, base 60°F
1,280

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January1,50300
February1,24200
March991113
April559270
May23832278
June41146555
July6246705
August12198651
September12476407
October4608123
November860014
December1,28601

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 3.4 km from Goodview. 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 USC00219072 (Winona Dam 5 A). Public domain.