Dushore climate

Dushore Frost Dates and Growing Season

NOAA 1991-2020 normals for Dushore, 0.4 km from Dushore, elevation 1530 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Dushore. 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 May 14 and the first fall freeze around October 2, a growing season of about 143 days.

Median at 36°F
last May 25, first September 23
Median at 32°F
last May 14, first October 2
Median at 28°F
last May 1, first October 15

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°FJun 6Jun 2May 31May 28May 25May 23May 19May 16May 9
32°FMay 27May 23May 20May 17May 14May 10May 7May 2Apr 28
28°FMay 18May 13May 9May 5May 1Apr 29Apr 25Apr 22Apr 19
24°FMay 6Apr 30Apr 24Apr 21Apr 19Apr 16Apr 13Apr 9Apr 4
20°FApr 19Apr 15Apr 10Apr 8Apr 5Apr 2Mar 31Mar 29Mar 23
16°FApr 6Apr 3Mar 31Mar 30Mar 27Mar 24Mar 21Mar 18Mar 13

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°FSep 10Sep 14Sep 17Sep 20Sep 23Sep 25Sep 28Oct 1Oct 4
32°FSep 20Sep 25Sep 28Oct 1Oct 2Oct 4Oct 7Oct 11Oct 16
28°FOct 1Oct 4Oct 8Oct 11Oct 15Oct 19Oct 23Oct 29Nov 3
24°FOct 12Oct 18Oct 22Oct 26Oct 30Nov 2Nov 5Nov 10Nov 16
20°FOct 27Nov 1Nov 5Nov 9Nov 13Nov 16Nov 19Nov 23Nov 29
16°FNov 9Nov 15Nov 18Nov 21Nov 25Nov 28Dec 1Dec 5Dec 11

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°F13913212712311911511110699
32°F162156150146143138133128122
28°F189181176170166161157151144
24°F215207202198193189182177169
20°F241233228224220216211207200
16°F263255251247242239235230224

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
7,158
Cooling degree days, base 65°F
316
Growing degree days, base 40°F
4,061
Growing degree days, base 45°F
3,012
Growing degree days, base 50°F
2,111
Growing degree days, base 55°F
1,350
Growing degree days, base 60°F
743

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January1,28600
February1,10701
March1,00408
April622147
May32214200
June9865419
July31119553
August5087502
September20328285
October523285
November803011
December1,10801

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 0.4 km from Dushore. 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 USC00362323 (Dushore). Public domain.