Redland climate

Redland Frost Dates and Growing Season

NOAA 1991-2020 normals for Lufkin 11 Nw, 16.6 km from Redland, elevation 350 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Lufkin 11 Nw. 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 March 19 and the first fall freeze around November 10, a growing season of about 239 days.

Median at 36°F
last April 3, first November 1
Median at 32°F
last March 19, first November 10
Median at 28°F
last March 3, first November 24

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°FApr 22Apr 15Apr 11Apr 6Apr 3Mar 31Mar 26Mar 20Mar 11
32°FApr 9Apr 3Mar 31Mar 24Mar 19Mar 14Mar 9Mar 2Feb 25
28°FMar 28Mar 19Mar 13Mar 8Mar 3Feb 28Feb 22Feb 16Feb 4
24°FMar 14Mar 6Feb 28Feb 20Feb 13Feb 5Jan 31Jan 23Jan 13
20°FMar 2Feb 16Feb 5Jan 31Jan 26Jan 18Jan 11Jan 3Dec 24
16°FFeb 23Feb 3Jan 31Jan 22Jan 16Jan 9Jan 5Jan 2Dec 28

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 20Oct 25Oct 28Oct 31Nov 1Nov 5Nov 7Nov 11Nov 17
32°FOct 28Nov 1Nov 4Nov 7Nov 10Nov 13Nov 18Nov 23Dec 1
28°FNov 5Nov 10Nov 14Nov 20Nov 24Nov 28Dec 1Dec 5Dec 13
24°FNov 14Nov 22Nov 28Dec 3Dec 7Dec 15Dec 24Jan 1Jan 11
20°FNov 28Dec 8Dec 17Dec 25Dec 31Jan 3Jan 8Jan 17Feb 1
16°FDec 20Dec 30Jan 1Jan 3Jan 7Jan 13Jan 20Feb 1Feb 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°F240231225220215210205198189
32°F266256250244239234228220212
28°F297286278271266259253245236
24°F339326316306299291282274261
20°F365365361352344335328312298
16°F365365365365365365365355336

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
99% of years
20°F or colder
76% of years
16°F or colder
29% 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
2,323
Cooling degree days, base 65°F
2,241
Growing degree days, base 40°F
9,127
Growing degree days, base 45°F
7,456
Growing degree days, base 50°F
5,918
Growing degree days, base 55°F
4,534
Growing degree days, base 60°F
3,305

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January574578
February4148115
March26627260
April11284427
May17229677
June0402852
July0507972
August0505970
September4332778
October92113489
November31622207
December530793

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 16.6 km from Redland. 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 USC00415415 (Lufkin 11 Nw). Public domain.