Inez climate

Inez Frost Dates and Growing Season

NOAA 1991-2020 normals for Inez 2 E, 1.8 km from Inez, elevation 710 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Inez 2 E. 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 20 and the first fall freeze around October 24, a growing season of about 186 days.

Median at 36°F
last May 2, first October 14
Median at 32°F
last April 20, first October 24
Median at 28°F
last April 5, 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 17May 12May 9May 6May 2Apr 29Apr 25Apr 21Apr 16
32°FMay 9May 2Apr 28Apr 23Apr 20Apr 17Apr 14Apr 9Apr 3
28°FApr 22Apr 16Apr 12Apr 7Apr 5Apr 2Mar 31Mar 28Mar 22
24°FApr 8Apr 4Apr 1Mar 30Mar 27Mar 23Mar 19Mar 14Mar 9
20°FMar 30Mar 25Mar 20Mar 16Mar 13Mar 9Mar 5Mar 2Feb 21
16°FMar 18Mar 12Mar 7Mar 3Feb 28Feb 23Feb 16Feb 10Feb 3

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 2Oct 6Oct 9Oct 12Oct 14Oct 17Oct 21Oct 24Oct 29
32°FOct 10Oct 15Oct 18Oct 21Oct 24Oct 26Oct 30Nov 1Nov 5
28°FOct 19Oct 23Oct 27Oct 31Nov 1Nov 4Nov 6Nov 10Nov 14
24°FOct 28Nov 1Nov 5Nov 8Nov 11Nov 14Nov 17Nov 21Nov 28
20°FNov 8Nov 13Nov 17Nov 21Nov 25Nov 30Dec 4Dec 10Dec 20
16°FNov 18Nov 26Dec 1Dec 6Dec 12Dec 18Dec 23Dec 30Jan 6

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°F186180175169165161156152145
32°F206199195190186181177171163
28°F227220216212208204200195187
24°F253245239234229226221216209
20°F289277269263257251245239230
16°F319307301294288281273267256

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
4,639
Cooling degree days, base 65°F
1,020
Growing degree days, base 40°F
6,199
Growing degree days, base 45°F
4,854
Growing degree days, base 50°F
3,670
Growing degree days, base 55°F
2,642
Growing degree days, base 60°F
1,759

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January96208
February791013
March647153
April31011205
May12471417
June8197639
July1308772
August1277741
September47138542
October30518218
November609046
December835018

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 1.8 km from Inez. Low ground, valleys and open fields freeze earlier and later than a town center or a hillside.

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Sources

NOAA NCEI U.S. Climate Normals, 1991-2020, annual and seasonal normals for station USC00154138 (Inez 2 E). Public domain.