Belmont Estates climate

Belmont Estates Frost Dates and Growing Season

NOAA 1991-2020 normals for Dale Enterprise, 1.3 km from Belmont Estates, elevation 1358 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Dale Enterprise. 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 21 and the first fall freeze around October 23, a growing season of about 182 days.

Median at 36°F
last May 3, first October 13
Median at 32°F
last April 21, first October 23
Median at 28°F
last April 9, 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 19May 13May 9May 6May 3Apr 30Apr 27Apr 24Apr 19
32°FMay 7May 2Apr 28Apr 24Apr 21Apr 19Apr 16Apr 13Apr 9
28°FApr 21Apr 17Apr 15Apr 12Apr 9Apr 6Apr 3Mar 31Mar 26
24°FApr 10Apr 5Apr 2Mar 31Mar 28Mar 25Mar 21Mar 17Mar 10
20°FMar 31Mar 27Mar 22Mar 18Mar 15Mar 11Mar 7Mar 3Feb 26
16°FMar 20Mar 15Mar 10Mar 7Mar 2Feb 27Feb 24Feb 17Feb 8

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 30Oct 3Oct 6Oct 10Oct 13Oct 15Oct 18Oct 22Oct 25
32°FOct 9Oct 13Oct 17Oct 20Oct 23Oct 25Oct 27Oct 31Nov 3
28°FOct 17Oct 24Oct 27Oct 30Nov 1Nov 3Nov 5Nov 9Nov 14
24°FOct 28Nov 1Nov 4Nov 8Nov 11Nov 14Nov 17Nov 22Nov 29
20°FNov 5Nov 11Nov 14Nov 19Nov 23Nov 27Dec 1Dec 5Dec 13
16°FNov 15Nov 23Nov 28Dec 2Dec 6Dec 12Dec 19Dec 26Jan 2

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°F178173168165162158154149142
32°F200194190186182178174168161
28°F224217212208204201198193187
24°F251243237232226222218214207
20°F278270263258253248243238230
16°F308298291285280275269262252

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
5,061
Cooling degree days, base 65°F
947
Growing degree days, base 40°F
5,830
Growing degree days, base 45°F
4,550
Growing degree days, base 50°F
3,423
Growing degree days, base 55°F
2,449
Growing degree days, base 60°F
1,625

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January1,01106
February84408
March713039
April3937144
May15559375
June19195625
July1306770
August4258719
September69108490
October32714195
November627143
December899010

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 Belmont Estates. 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 USC00442208 (Dale Enterprise). Public domain.