Muse climate

Muse Frost Dates and Growing Season

NOAA 1991-2020 normals for Washington 3 Ne, 12.7 km from Muse, elevation 1300 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Washington 3 Ne. 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 April 24 and the first fall freeze around October 23, a growing season of about 181 days.

Median at 36°F
last May 6, first October 11
Median at 32°F
last April 24, first October 23
Median at 28°F
last April 11, first November 2

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°FMay 25May 20May 15May 11May 6May 2Apr 29Apr 24Apr 19
32°FMay 18May 10May 3Apr 30Apr 24Apr 21Apr 17Apr 13Apr 8
28°FMay 4Apr 24Apr 19Apr 15Apr 11Apr 8Apr 5Apr 2Mar 29
24°FApr 16Apr 10Apr 6Apr 3Apr 1Mar 30Mar 26Mar 22Mar 16
20°FApr 5Apr 1Mar 29Mar 26Mar 23Mar 19Mar 16Mar 12Mar 6
16°FMar 29Mar 25Mar 20Mar 17Mar 14Mar 10Mar 7Mar 1Feb 24

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 29Oct 2Oct 5Oct 8Oct 11Oct 14Oct 17Oct 20Oct 25
32°FOct 8Oct 13Oct 17Oct 20Oct 23Oct 26Oct 29Nov 1Nov 5
28°FOct 19Oct 24Oct 28Nov 1Nov 2Nov 5Nov 8Nov 11Nov 16
24°FNov 1Nov 4Nov 7Nov 10Nov 14Nov 17Nov 21Nov 27Dec 2
20°FNov 7Nov 12Nov 17Nov 21Nov 27Dec 1Dec 3Dec 8Dec 16
16°FNov 16Nov 25Dec 1Dec 4Dec 8Dec 13Dec 19Dec 25Jan 1

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°F180174168163158154148143135
32°F203195189184181176171165158
28°F227218214210206202196189179
24°F253244238233228223218213206
20°F276268261256251245241234226
16°F299290283278273268262256247

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
5,674
Cooling degree days, base 65°F
762
Growing degree days, base 40°F
5,420
Growing degree days, base 45°F
4,202
Growing degree days, base 50°F
3,122
Growing degree days, base 55°F
2,183
Growing degree days, base 60°F
1,392

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January1,13405
February95505
March806138
April43112140
May19353338
June39154566
July5239699
August8206663
September9084446
October37112170
November671141
December972011

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 12.7 km from Muse. 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 USC00369318 (Washington 3 Ne). Public domain.