When is the last frost in Diamondville, WY?

Frost is possible in any month at the nearest NOAA station (Kemmerer 2N, WY), so there is no reliable average last frost date.

When is the first frost in Diamondville, WY?

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 83116Diamondville, WY

Frost is possible in any month near Diamondville, based on NOAA 1991-2020 records for the Kemmerer 2N, WY 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)	—	—	37 days	100%
Frost / freeze (32°F)	—	—	66 days	100%
Hard freeze (28°F)	May 20 · Jun 8 · Jun 25	Aug 30 · Sep 11 · Sep 24	94 days	100%

Where these dates come from

ZIP code 83116 is matched to the NOAA station Kemmerer 2N, WY, 3.8 km away, at 6,937 ft elevation (38 ft lower than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Kemmerer 2N, WY (used)	6,937 ft	—	—
Fossil Butte, WY	6,785 ft	—	—
Sage 4 Nnw, WY	6,210 ft	—	—
Fontenelle Dam, WY	6,485 ft	—	—

Frost dates near Diamondville

Kemmerer, WY 83101 · last —, first —
Frontier, WY 83121 · last —, first —
Opal, WY 83124 · last —, first —
Cokeville, WY 83114 · last —, first —
Granger, WY 82934 · last May 24, first Sep 22
Fort Bridger, WY 82933 · last Jun 14, first Sep 9
Lyman, WY 82937 · last Jun 14, first Sep 9
Randolph, UT 84064 · last Jun 14, first Sep 1

Frequently asked questions

When is the last frost in Diamondville, WY?: Frost is possible in any month at the nearest NOAA station (Kemmerer 2N, WY), so there is no reliable average last frost date.
When is the first frost in Diamondville, WY?: 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.