Edgewater climate

Edgewater Frost Dates and Growing Season

NOAA 1991-2020 normals for Lakewood, 4.9 km from Edgewater, elevation 5640 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Lakewood. 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 3 and the first fall freeze around October 7, a growing season of about 155 days.

Median at 36°F
last May 14, first September 30
Median at 32°F
last May 3, first October 7
Median at 28°F
last April 22, first October 16

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 29May 23May 20May 17May 14May 12May 9May 5May 1
32°FMay 18May 12May 8May 6May 3May 1Apr 28Apr 24Apr 19
28°FMay 7May 2Apr 29Apr 25Apr 22Apr 19Apr 15Apr 10Apr 5
24°FApr 27Apr 22Apr 17Apr 13Apr 9Apr 5Apr 2Mar 30Mar 23
20°FApr 19Apr 10Apr 6Apr 2Mar 30Mar 25Mar 20Mar 14Mar 6
16°FApr 7Mar 31Mar 27Mar 21Mar 16Mar 10Mar 5Feb 28Feb 22

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 16Sep 21Sep 25Sep 28Sep 30Oct 2Oct 4Oct 7Oct 12
32°FSep 24Sep 30Oct 2Oct 4Oct 7Oct 10Oct 13Oct 16Oct 21
28°FOct 1Oct 6Oct 9Oct 13Oct 16Oct 18Oct 21Oct 25Oct 30
24°FOct 11Oct 16Oct 19Oct 23Oct 26Oct 30Nov 2Nov 6Nov 12
20°FOct 18Oct 25Oct 30Nov 2Nov 5Nov 9Nov 13Nov 17Nov 22
16°FOct 25Nov 1Nov 6Nov 10Nov 15Nov 19Nov 22Nov 26Nov 30

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°F156150145141137133129124117
32°F175169164160155152148142133
28°F198190184180176172167162154
24°F223215207203199194188182173
20°F247237231226220215209203194
16°F272262255249243237230223212

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
5,914
Cooling degree days, base 65°F
633
Growing degree days, base 40°F
4,933
Growing degree days, base 45°F
3,733
Growing degree days, base 50°F
2,713
Growing degree days, base 55°F
1,866
Growing degree days, base 60°F
1,173

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January99402
February88303
March744026
April536174
May29617233
June67117501
July7248705
August16190639
September13859385
October4672118
November752025
December1,01403

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 4.9 km from Edgewater. 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 USC00054762 (Lakewood). Public domain.