Meadview climate

Meadview Frost Dates and Growing Season

NOAA 1991-2020 normals for Meadview 1W, 1.8 km from Meadview, elevation 2938 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Meadview 1W. 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 5 and the first fall freeze around November 28, a growing season of about 265 days.

Median at 36°F
last March 24, first November 17
Median at 32°F
last March 5, first November 28
Median at 28°F
last February 16, first December 9

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 15Apr 8Apr 2Mar 30Mar 24Mar 20Mar 15Mar 9Mar 3
32°FMar 28Mar 18Mar 13Mar 9Mar 5Mar 1Feb 26Feb 21Feb 13
28°FMar 7Mar 1Feb 25Feb 20Feb 16Feb 10Feb 5Jan 31Jan 13
24°FFeb 20Feb 11Feb 5Feb 1Jan 26Jan 18Jan 10Jan 1Dec 22
20°FFeb 5Jan 30Jan 23Jan 16Jan 10Jan 6Jan 2Dec 28Dec 18
16°FJan 28Jan 18Jan 14Jan 10Jan 6Jan 4Dec 31Dec 26Dec 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 30Nov 7Nov 12Nov 15Nov 17Nov 20Nov 22Nov 25Nov 30
32°FNov 14Nov 19Nov 22Nov 25Nov 28Nov 30Dec 3Dec 6Dec 10
28°FNov 24Nov 29Dec 2Dec 6Dec 9Dec 12Dec 15Dec 19Dec 23
24°FDec 3Dec 9Dec 14Dec 18Dec 22Dec 26Dec 30Jan 4Jan 19
20°FDec 12Dec 18Dec 24Dec 30Jan 1Jan 4Jan 9Jan 17Jan 28
16°FDec 17Dec 24Dec 30Jan 1Jan 4Jan 6Jan 10Jan 16Jan 26

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°F262253247241236231225219211
32°F291283276270265260255249240
28°F327314306301295290285277268
24°F362354345338332326319310300
20°F365365365365363356347339331
16°F365365365365365365365365358

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
91% of years
20°F or colder
50% of years
16°F or colder
14% 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
2,565
Cooling degree days, base 65°F
3,002
Growing degree days, base 40°F
9,628
Growing degree days, base 45°F
7,954
Growing degree days, base 50°F
6,438
Growing degree days, base 55°F
5,124
Growing degree days, base 60°F
3,989

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January600028
February473045
March29213216
April12869394
May28275712
June15691,018
July07561,221
August07111,176
September3467913
October75138528
November3295165
December635023

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 1.8 km from Meadview. 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 USC00025426 (Meadview 1W). Public domain.