Celina climate

Celina Frost Dates and Growing Season

NOAA 1991-2020 normals for Livingston Radio Wliv, 24.4 km from Celina, elevation 975 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Livingston Radio Wliv. 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 12 and the first fall freeze around October 25, a growing season of about 195 days.

Median at 36°F
last April 26, first October 17
Median at 32°F
last April 12, first October 25
Median at 28°F
last April 1, first November 3

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 11May 7May 2Apr 30Apr 26Apr 22Apr 18Apr 15Apr 9
32°FApr 30Apr 24Apr 20Apr 15Apr 12Apr 9Apr 5Apr 2Mar 28
28°FApr 15Apr 10Apr 7Apr 4Apr 1Mar 29Mar 26Mar 20Mar 13
24°FApr 4Mar 31Mar 28Mar 24Mar 20Mar 16Mar 11Mar 6Feb 27
20°FMar 27Mar 21Mar 15Mar 11Mar 7Mar 3Feb 26Feb 19Feb 10
16°FMar 18Mar 11Mar 4Feb 27Feb 21Feb 14Feb 7Feb 1Jan 23

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 5Oct 9Oct 12Oct 15Oct 17Oct 19Oct 22Oct 25Oct 29
32°FOct 12Oct 17Oct 20Oct 23Oct 25Oct 28Oct 31Nov 2Nov 6
28°FOct 21Oct 26Oct 30Nov 1Nov 3Nov 6Nov 9Nov 13Nov 19
24°FNov 1Nov 4Nov 8Nov 11Nov 14Nov 18Nov 22Nov 28Dec 3
20°FNov 9Nov 15Nov 20Nov 27Dec 1Dec 3Dec 9Dec 16Dec 25
16°FNov 21Dec 1Dec 5Dec 12Dec 18Dec 24Dec 29Jan 3Jan 12

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°F193187182178174170165160153
32°F216209204200195191186181173
28°F241231225221217213208203196
24°F269258251246240235231225217
20°F303292282275268262255249240
16°F333323313306300292284275264

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
99% 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
4,019
Cooling degree days, base 65°F
1,277
Growing degree days, base 40°F
6,899
Growing degree days, base 45°F
5,460
Growing degree days, base 50°F
4,178
Growing degree days, base 55°F
3,056
Growing degree days, base 60°F
2,094

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January873022
February694129
March539496
April26424249
May90101479
June7247690
July0360825
August1333797
September32174593
October24031285
November518385
December763031

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 24.4 km from Celina. 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 USC00405332 (Livingston Radio Wliv). Public domain.