Leoti climate

Leoti Frost Dates and Growing Season

NOAA 1991-2020 normals for Leoti, 1.3 km from Leoti, elevation 3309 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Leoti. 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 2 and the first fall freeze around October 12, a growing season of about 161 days.

Median at 36°F
last May 11, first October 3
Median at 32°F
last May 2, first October 12
Median at 28°F
last April 23, first October 21

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 26May 21May 17May 14May 11May 8May 5May 2Apr 29
32°FMay 16May 11May 7May 4May 2Apr 30Apr 27Apr 23Apr 17
28°FMay 8May 2Apr 30Apr 26Apr 23Apr 20Apr 17Apr 13Apr 8
24°FApr 28Apr 22Apr 18Apr 15Apr 12Apr 8Apr 6Apr 2Mar 27
20°FApr 18Apr 12Apr 8Apr 5Apr 2Mar 30Mar 24Mar 18Mar 11
16°FApr 8Apr 3Mar 31Mar 24Mar 18Mar 14Mar 10Mar 6Mar 1

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 20Sep 25Sep 28Oct 1Oct 3Oct 5Oct 8Oct 11Oct 15
32°FSep 29Oct 3Oct 6Oct 8Oct 12Oct 14Oct 16Oct 19Oct 24
28°FOct 6Oct 12Oct 16Oct 19Oct 21Oct 23Oct 26Oct 29Nov 2
24°FOct 17Oct 21Oct 24Oct 27Oct 30Nov 1Nov 3Nov 6Nov 11
20°FOct 23Oct 28Nov 1Nov 3Nov 6Nov 9Nov 12Nov 15Nov 20
16°FOct 31Nov 4Nov 8Nov 12Nov 14Nov 18Nov 21Nov 24Nov 28

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°F161155151147143140136131123
32°F179173168164161158154149142
28°F200193187184180176172167160
24°F220212207203199195189183175
20°F242234228223219215210205195
16°F262255248243237233228222214

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
5,649
Cooling degree days, base 65°F
1,067
Growing degree days, base 40°F
5,692
Growing degree days, base 45°F
4,476
Growing degree days, base 50°F
3,412
Growing degree days, base 55°F
2,494
Growing degree days, base 60°F
1,716

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January1,08200
February89604
March718038
April4593113
May19348338
June24225651
July3367829
August6294753
September84120491
October38710171
November749023
December1,05102

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 1.3 km from Leoti. 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 USC00144665 (Leoti). Public domain.