Gloster climate

Gloster Frost Dates and Growing Season

NOAA 1991-2020 normals for Woodville 4 Ese, 23.1 km from Gloster, elevation 400 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Woodville 4 Ese. 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 11 and the first fall freeze around November 17, a growing season of about 251 days.

Median at 36°F
last March 24, first November 5
Median at 32°F
last March 11, first November 17
Median at 28°F
last February 28, first December 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°FApr 12Apr 5Apr 1Mar 28Mar 24Mar 20Mar 15Mar 10Mar 4
32°FMar 31Mar 25Mar 20Mar 16Mar 11Mar 7Mar 3Feb 27Feb 20
28°FMar 18Mar 13Mar 7Mar 3Feb 28Feb 22Feb 17Feb 10Jan 31
24°FMar 11Mar 3Feb 25Feb 17Feb 9Feb 3Jan 30Jan 23Jan 9
20°FFeb 28Feb 12Feb 3Jan 31Jan 26Jan 20Jan 13Jan 5Dec 27
16°FFeb 11Feb 3Jan 30Jan 23Jan 18Jan 12Jan 7Dec 31Dec 20

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 29Nov 1Nov 3Nov 5Nov 8Nov 12Nov 17Nov 21
32°FNov 2Nov 6Nov 10Nov 14Nov 17Nov 20Nov 24Nov 28Dec 4
28°FNov 11Nov 17Nov 22Nov 26Dec 1Dec 4Dec 9Dec 16Dec 29
24°FNov 25Dec 2Dec 7Dec 14Dec 21Dec 27Jan 1Jan 8Jan 19
20°FDec 6Dec 15Dec 24Dec 30Jan 4Jan 9Jan 14Jan 21Feb 2
16°FDec 11Dec 22Dec 31Jan 4Jan 8Jan 12Jan 19Jan 27Feb 5

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°F252244238232227222216211204
32°F277268262256251245240233224
28°F311299289282277272266259249
24°F353336327320312305297286274
20°F365365365353346337331321306
16°F365365365365365365365354336

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
73% 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
1,894
Cooling degree days, base 65°F
2,405
Growing degree days, base 40°F
9,693
Growing degree days, base 45°F
7,969
Growing degree days, base 50°F
6,350
Growing degree days, base 55°F
4,872
Growing degree days, base 60°F
3,547

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January515498
February3529144
March21230307
April71101482
May8265722
June0424874
July0519984
August0511976
September2356804
October56154564
November23524262
December4437133

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 23.1 km from Gloster. 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 USC00229793 (Woodville 4 Ese). Public domain.