Eudora climate

Eudora Frost Dates and Growing Season

NOAA 1991-2020 normals for Eudora, 0.5 km from Eudora, elevation 135 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Eudora. 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 March 13 and the first fall freeze around November 14, a growing season of about 244 days.

Median at 36°F
last March 31, first November 3
Median at 32°F
last March 13, first November 14
Median at 28°F
last February 28, first November 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°FApr 18Apr 10Apr 6Apr 3Mar 31Mar 26Mar 21Mar 15Mar 8
32°FApr 5Mar 30Mar 23Mar 18Mar 13Mar 9Mar 4Feb 28Feb 23
28°FMar 24Mar 14Mar 7Mar 3Feb 28Feb 24Feb 20Feb 14Feb 4
24°FMar 7Mar 1Feb 24Feb 16Feb 10Feb 4Jan 31Jan 26Jan 12
20°FFeb 27Feb 16Feb 7Feb 1Jan 28Jan 23Jan 16Jan 9Dec 31
16°FFeb 11Feb 2Jan 28Jan 23Jan 18Jan 14Jan 9Jan 3Dec 28

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°FOct 20Oct 25Oct 29Nov 1Nov 3Nov 6Nov 9Nov 13Nov 20
32°FOct 30Nov 3Nov 6Nov 10Nov 14Nov 19Nov 23Nov 28Dec 3
28°FNov 6Nov 12Nov 18Nov 24Nov 29Dec 2Dec 6Dec 13Dec 22
24°FNov 18Nov 29Dec 4Dec 10Dec 17Dec 24Dec 31Jan 4Jan 12
20°FDec 7Dec 19Dec 27Jan 1Jan 3Jan 7Jan 13Jan 19Feb 1
16°FDec 21Dec 30Jan 2Jan 5Jan 10Jan 14Jan 19Jan 25Feb 5

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°F246237230224219214209203195
32°F272263257251244239233224215
28°F302293285278272266259252243
24°F340331322313306299292283271
20°F365365357347341334327316303
16°F365365365365365365359346335

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
98% of years
20°F or colder
76% of years
16°F or colder
39% 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
2,528
Cooling degree days, base 65°F
2,370
Growing degree days, base 40°F
9,111
Growing degree days, base 45°F
7,477
Growing degree days, base 50°F
5,974
Growing degree days, base 55°F
4,615
Growing degree days, base 60°F
3,411

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January639257
February474488
March29721239
April11382424
May17252701
June0444894
July05391,004
August0530995
September5355799
October91119497
November32618200
December567477

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 0.5 km from Eudora. 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 USC00032355 (Eudora). Public domain.