Easton climate

Easton Frost Dates and Growing Season

NOAA 1991-2020 normals for Hallsville 4 S, 6.9 km from Easton, elevation 322 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Hallsville 4 S. 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 15 and the first fall freeze around November 15, a growing season of about 245 days.

Median at 36°F
last March 31, first November 5
Median at 32°F
last March 15, first November 15
Median at 28°F
last March 2, first November 29

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 17Apr 11Apr 7Apr 3Mar 31Mar 25Mar 20Mar 16Mar 10
32°FApr 5Mar 30Mar 24Mar 19Mar 15Mar 11Mar 6Mar 2Feb 23
28°FMar 23Mar 16Mar 10Mar 6Mar 2Feb 27Feb 22Feb 14Jan 31
24°FMar 9Mar 3Feb 27Feb 20Feb 12Feb 4Jan 30Jan 23Jan 14
20°FMar 1Feb 16Feb 4Jan 30Jan 25Jan 20Jan 15Jan 8Dec 29
16°FFeb 8Jan 31Jan 24Jan 18Jan 14Jan 10Jan 7Jan 3Dec 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 24Oct 29Oct 31Nov 2Nov 5Nov 9Nov 13Nov 16Nov 21
32°FOct 31Nov 4Nov 8Nov 12Nov 15Nov 18Nov 23Nov 29Dec 4
28°FNov 9Nov 15Nov 19Nov 24Nov 29Dec 3Dec 7Dec 14Dec 24
24°FNov 19Nov 30Dec 5Dec 10Dec 16Dec 24Jan 1Jan 6Jan 16
20°FDec 8Dec 15Dec 24Dec 30Jan 3Jan 8Jan 14Jan 20Feb 3
16°FDec 18Dec 29Jan 1Jan 5Jan 8Jan 13Jan 17Jan 23Feb 3

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°F244236230225220215210204198
32°F271263256250245241235228217
28°F306293286280273267260254243
24°F343333322314307300292283270
20°F365365359352344335329318302
16°F365365365365365365360348334

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
97% of years
20°F or colder
72% of years
16°F or colder
32% 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
2,444
Cooling degree days, base 65°F
2,343
Growing degree days, base 40°F
9,146
Growing degree days, base 45°F
7,498
Growing degree days, base 50°F
5,982
Growing degree days, base 55°F
4,609
Growing degree days, base 60°F
3,393

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January615366
February4486104
March28623246
April11074419
May16233682
June0429879
July05491,014
August05451,010
September3347793
October94114488
November32217199
December551482

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 6.9 km from Easton. 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 USC00413877 (Hallsville 4 S). Public domain.