Munday climate

Munday Frost Dates and Growing Season

NOAA 1991-2020 normals for Munday, 0.9 km from Munday, elevation 1480 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Munday. 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 26 and the first fall freeze around November 11, a growing season of about 232 days.

Median at 36°F
last April 5, first November 3
Median at 32°F
last March 26, first November 11
Median at 28°F
last March 11, first November 21

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 20Apr 15Apr 11Apr 8Apr 5Apr 2Mar 31Mar 27Mar 20
32°FApr 8Apr 4Apr 1Mar 30Mar 26Mar 22Mar 17Mar 10Mar 1
28°FMar 31Mar 25Mar 20Mar 15Mar 11Mar 7Mar 2Feb 27Feb 19
24°FMar 20Mar 13Mar 8Mar 4Feb 28Feb 25Feb 18Feb 9Jan 31
20°FMar 12Mar 5Feb 28Feb 21Feb 12Feb 6Jan 30Jan 21Jan 7
16°FMar 2Feb 20Feb 9Feb 2Jan 28Jan 22Jan 15Jan 3Dec 21

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 24Oct 28Nov 1Nov 3Nov 5Nov 8Nov 12Nov 17
32°FOct 26Oct 31Nov 4Nov 8Nov 11Nov 14Nov 17Nov 23Nov 30
28°FNov 3Nov 10Nov 14Nov 17Nov 21Nov 24Nov 29Dec 4Dec 10
24°FNov 14Nov 19Nov 24Nov 30Dec 3Dec 7Dec 13Dec 22Jan 1
20°FNov 23Dec 1Dec 6Dec 12Dec 20Dec 28Jan 3Jan 12Jan 28
16°FDec 3Dec 10Dec 18Dec 26Jan 2Jan 9Jan 18Jan 29Feb 8

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°F237228221215211207202197188
32°F258250243237232227222216208
28°F280272265259255250244237228
24°F317303293285278272266259250
20°F353337327317308302294285270
16°F365365365353342333323310299

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
95% of years
16°F or colder
73% 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
2,514
Cooling degree days, base 65°F
2,609
Growing degree days, base 40°F
9,359
Growing degree days, base 45°F
7,719
Growing degree days, base 50°F
6,213
Growing degree days, base 55°F
4,858
Growing degree days, base 60°F
3,657

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January625145
February460487
March28731261
April9997454
May13282733
June0492942
July06151,080
August05901,055
September8347789
October86131516
November33619199
December600152

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 0.9 km from Munday. 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 USC00416146 (Munday). Public domain.