Bennet climate

Bennet Frost Dates and Growing Season

NOAA 1991-2020 normals for Lincoln 8 Ene, 19.4 km from Bennet, elevation 1189 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Lincoln 8 Ene. 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 27 and the first fall freeze around October 10, a growing season of about 164 days.

Median at 36°F
last May 4, first September 30
Median at 32°F
last April 27, first October 10
Median at 28°F
last April 18, first October 20

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 18May 13May 9May 6May 4May 2Apr 30Apr 27Apr 22
32°FMay 8May 4May 1Apr 29Apr 27Apr 24Apr 21Apr 17Apr 13
28°FMay 3Apr 28Apr 24Apr 21Apr 18Apr 15Apr 12Apr 8Apr 3
24°FApr 23Apr 18Apr 14Apr 11Apr 8Apr 4Apr 1Mar 28Mar 21
20°FApr 14Apr 9Apr 4Apr 1Mar 30Mar 25Mar 21Mar 16Mar 10
16°FApr 3Mar 30Mar 25Mar 21Mar 18Mar 14Mar 11Mar 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 15Sep 21Sep 24Sep 27Sep 30Oct 2Oct 6Oct 9Oct 13
32°FSep 25Sep 30Oct 3Oct 6Oct 10Oct 13Oct 15Oct 19Oct 23
28°FOct 3Oct 9Oct 14Oct 17Oct 20Oct 23Oct 26Oct 29Nov 2
24°FOct 16Oct 21Oct 24Oct 27Oct 30Nov 1Nov 4Nov 7Nov 12
20°FOct 24Oct 30Nov 1Nov 4Nov 6Nov 9Nov 12Nov 16Nov 23
16°FNov 2Nov 6Nov 9Nov 12Nov 16Nov 19Nov 23Nov 27Dec 4

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°F165159155152148144140135128
32°F184177172168164160156151144
28°F204196192188184179175170163
24°F225217213208204200196190183
20°F246238232227224219215209202
16°F266257252247242238232227219

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
6,057
Cooling degree days, base 65°F
1,045
Growing degree days, base 40°F
5,648
Growing degree days, base 45°F
4,472
Growing degree days, base 50°F
3,429
Growing degree days, base 55°F
2,506
Growing degree days, base 60°F
1,711

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January1,26800
February1,01504
March760247
April42310145
May16666376
June15212646
July3344806
August7279736
September98116470
October39216175
November774023
December1,13601

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 19.4 km from Bennet. 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 USW00094995 (Lincoln 8 Ene). Public domain.