When is the last frost in Hatch, UT?

For ZIP code 84735, the average last spring frost (32°F) is June 19, based on NOAA 1991-2020 climate normals for the Hatch, UT weather station. There is a 1-in-10 chance of a frost after July 2.

When is the first frost in Hatch, UT?

The average first fall frost (32°F) is September 13. There is a 1-in-10 chance of frost by September 1, so tender plants are at risk from that point on.

How long is the growing season in 84735?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 83 days long.

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 84735Hatch, UT

The average last spring frost in Hatch is June 19 and the average first fall frost is September 13, giving a typical growing season of about 83 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Jun 19
Average first fall frost: Sep 13
Growing season: 83 days

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)	—	—	60 days	100%
Frost / freeze (32°F)	Jun 5 · Jun 19 · Jul 2	Sep 1 · Sep 13 · Sep 22	83 days	100%
Hard freeze (28°F)	May 18 · Jun 6 · Jun 22	Sep 11 · Sep 22 · Oct 3	106 days	100%

Where these dates come from

ZIP code 84735 is matched to the NOAA station Hatch, UT, 0.3 km away, at 6,893 ft elevation (26 ft lower than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Hatch, UT (used)	6,893 ft	Jun 19	Sep 13
Panguitch, UT	6,647 ft	Jun 12	Sep 12
Bryce Canyon Np Hqrs, UT	7,890 ft	May 23	Sep 27
Alton, UT	7,098 ft	Jun 1	Sep 30

Frost dates near Hatch

Panguitch, UT 84759 · last Jun 12, first Sep 12
Alton, UT 84710 · last Jun 1, first Sep 30
Bryce, UT 84764 · last May 23, first Sep 27
Duck Creek Village, UT 84762 · last Jun 21, first Sep 12
Tropic, UT 84776 · last May 31, first Sep 28
Cannonville, UT 84718 · last May 31, first Sep 28
Brian Head, UT 84719 · last Jun 21, first Sep 12
Glendale, UT 84729 · last May 15, first Oct 8

Frequently asked questions

When is the last frost in Hatch, UT?: For ZIP code 84735, the average last spring frost (32°F) is June 19, based on NOAA 1991-2020 climate normals for the Hatch, UT weather station. There is a 1-in-10 chance of a frost after July 2.
When is the first frost in Hatch, UT?: The average first fall frost (32°F) is September 13. There is a 1-in-10 chance of frost by September 1, so tender plants are at risk from that point on.
How long is the growing season in 84735?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 83 days long.
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.