Springville climate

Springville Frost Dates and Growing Season

NOAA 1991-2020 normals for Oneonta, 17.5 km from Springville, elevation 1100 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Oneonta. 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 26 and the first fall freeze around November 10, a growing season of about 230 days.

Median at 36°F
last April 6, first October 30
Median at 32°F
last March 26, first November 10
Median at 28°F
last March 8, first November 24

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 24Apr 18Apr 14Apr 10Apr 6Apr 3Mar 30Mar 26Mar 19
32°FApr 12Apr 6Apr 2Mar 30Mar 26Mar 21Mar 17Mar 11Mar 2
28°FMar 29Mar 23Mar 17Mar 13Mar 8Mar 4Feb 28Feb 24Feb 16
24°FMar 17Mar 10Mar 5Feb 28Feb 26Feb 21Feb 14Feb 8Jan 31
20°FMar 6Feb 28Feb 21Feb 14Feb 9Feb 3Jan 31Jan 22Jan 9
16°FFeb 28Feb 15Feb 9Feb 4Jan 31Jan 25Jan 18Jan 10Dec 30

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 17Oct 21Oct 24Oct 27Oct 30Nov 1Nov 4Nov 8Nov 14
32°FOct 26Oct 31Nov 3Nov 6Nov 10Nov 13Nov 17Nov 22Nov 30
28°FNov 5Nov 11Nov 15Nov 20Nov 24Nov 29Dec 2Dec 6Dec 15
24°FNov 15Nov 23Nov 29Dec 2Dec 6Dec 11Dec 21Dec 30Jan 7
20°FNov 27Dec 5Dec 11Dec 19Dec 28Jan 2Jan 7Jan 16Jan 30
16°FDec 7Dec 20Dec 29Jan 2Jan 7Jan 13Jan 19Jan 27Feb 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°F231222216212207203199192185
32°F256247240235230224220214206
28°F291278268263258253247241231
24°F324311303295289281275266256
20°F354339332324317310303294283
16°F365365363352343334329320307

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
94% of years
16°F or colder
73% 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
2,862
Cooling degree days, base 65°F
1,906
Growing degree days, base 40°F
8,356
Growing degree days, base 45°F
6,754
Growing degree days, base 50°F
5,298
Growing degree days, base 55°F
3,997
Growing degree days, base 60°F
2,864

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January681144
February524259
March34914196
April15049359
May31178612
June1364813
July0485950
August0454919
September10273714
October12973417
November37910156
December610260

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 17.5 km from Springville. 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 USC00016121 (Oneonta). Public domain.