When is the last frost in Twin Lakes, CO?

Frost is possible in any month at the nearest NOAA station (Climax, CO), so there is no reliable average last frost date.

When is the first frost in Twin Lakes, CO?

Frost is possible in any month at the nearest NOAA station.

Are these frost dates a forecast?

No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.

Frost dates for 81251Twin Lakes, CO

Frost is possible in any month near Twin Lakes, based on NOAA 1991-2020 records for the Climax, CO station.

Frost is possible in any month. Even summer nights can drop to freezing at this station, so protect tender plants whenever cold nights are forecast.

Frost risk by date

NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.

Spring dates: chance of a frost AFTER the date. Fall dates: chance of a frost BEFORE the date.
Temperature	Last spring: 90% / 50% / 10% chance	First fall: 10% / 50% / 90% chance	Growing season (50%)	Years with at least one
Light frost (36°F)	—	—	27 days	100%
Frost / freeze (32°F)	—	—	61 days	100%
Hard freeze (28°F)	Jun 2 · Jun 15 · Jul 4	Aug 30 · Sep 13 · Sep 24	85 days	100%

Where these dates come from

ZIP code 81251 is matched to the NOAA station Climax, CO, 36.7 km away, at 11,345 ft elevation (2,012 ft lower than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Climax, CO (used)	11,345 ft	—	—
Twin Lakes Rsvr, CO	9,236 ft	Jun 16	Sep 10
Sugarloaf Rsvr, CO	9,738 ft	—	—
Leadville Lake Co Ap, CO	9,933 ft	—	—

Frost dates near Twin Lakes

Granite, CO 81228 · last Jun 16, first Sep 10
Climax, CO 80429 · last —, first —
Leadville, CO 80461 · last —, first —
Meredith, CO 81642 · last Jun 2, first Sep 23
Aspen, CO 81611 · last May 31, first Sep 23
Almont, CO 81210 · last Jun 20, first Sep 8
Alma, CO 80420 · last Jun 16, first Sep 9
Buena Vista, CO 81211 · last May 27, first Sep 23

Frequently asked questions

When is the last frost in Twin Lakes, CO?: Frost is possible in any month at the nearest NOAA station (Climax, CO), so there is no reliable average last frost date.
When is the first frost in Twin Lakes, CO?: Frost is possible in any month at the nearest NOAA station.
Are these frost dates a forecast?: No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.