Fairview climate

Fairview Frost Dates and Growing Season

NOAA 1991-2020 normals for Fairview 1W Mesonet, 1.7 km from Fairview, elevation 1328 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Fairview 1W Mesonet. 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 5 and the first fall freeze around November 1, a growing season of about 208 days.

Median at 36°F
last April 18, first October 23
Median at 32°F
last April 5, first November 1
Median at 28°F
last March 26, first November 10

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 1Apr 28Apr 24Apr 21Apr 18Apr 15Apr 11Apr 7Apr 2
32°FApr 20Apr 15Apr 11Apr 8Apr 5Apr 2Mar 31Mar 27Mar 20
28°FApr 10Apr 5Apr 2Mar 30Mar 26Mar 22Mar 17Mar 13Mar 8
24°FApr 1Mar 26Mar 19Mar 15Mar 12Mar 9Mar 5Mar 1Feb 25
20°FMar 17Mar 12Mar 8Mar 4Mar 1Feb 27Feb 24Feb 19Feb 12
16°FMar 9Mar 3Feb 28Feb 24Feb 21Feb 17Feb 11Feb 5Jan 25

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 9Oct 14Oct 17Oct 20Oct 23Oct 25Oct 28Oct 31Nov 4
32°FOct 19Oct 23Oct 26Oct 29Nov 1Nov 3Nov 6Nov 9Nov 15
28°FOct 26Oct 31Nov 3Nov 7Nov 10Nov 13Nov 16Nov 21Nov 27
24°FNov 3Nov 9Nov 13Nov 17Nov 20Nov 24Nov 28Dec 1Dec 7
20°FNov 12Nov 18Nov 23Nov 27Dec 1Dec 4Dec 9Dec 14Dec 23
16°FNov 24Nov 30Dec 4Dec 9Dec 15Dec 20Dec 26Jan 1Jan 13

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°F208200195191187183179174166
32°F230222217212208204200195187
28°F254246240235230225220214205
24°F278268262257251246241234225
20°F303292285279274268263257247
16°F329318309303297291285278270

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
3,868
Cooling degree days, base 65°F
2,049
Growing degree days, base 40°F
7,799
Growing degree days, base 45°F
6,358
Growing degree days, base 50°F
5,061
Growing degree days, base 55°F
3,916
Growing degree days, base 60°F
2,911

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January856011
February693135
March4889122
April22937287
May64179581
June1411861
July05611,026
August0505970
September18273705
October19468363
November508489
December818013

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 1.7 km from Fairview. 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 USC00343048 (Fairview 1W Mesonet). Public domain.