When is the last frost in Buckeye, AZ?

For ZIP code 85396, the average last spring frost (32°F) is January 7, based on NOAA 1991-2020 climate normals for the Litchfield Park, AZ weather station. There is a 1-in-10 chance of a frost after February 5.

When is the first frost in Buckeye, AZ?

The average first fall frost (32°F) is December 24. There is a 1-in-10 chance of frost by December 6, so tender plants are at risk from that point on.

How long is the growing season in 85396?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 351 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 85396Buckeye, AZ

The average last spring frost in Buckeye is January 7 and the average first fall frost is December 24, giving a typical growing season of about 351 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Jan 7
Average first fall frost: Dec 24
Growing season: 351 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)	Jan 4 · Jan 31 · Feb 24	Nov 24 · Dec 9 · Dec 28	313 days	99%
Frost / freeze (32°F)	Dec 17 · Jan 7 · Feb 5	Dec 6 · Dec 24 · Jan 16	351 days	77%
Hard freeze (28°F)	Dec 21 · Jan 5 · Jan 22	Dec 18 · Jan 4 · Jan 21	365 days	20%

Where these dates come from

ZIP code 85396 is matched to the NOAA station Litchfield Park, AZ, 11.3 km away, at 1,040 ft elevation (49 ft lower than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Litchfield Park, AZ (used)	1,040 ft	Jan 7	Dec 24
Youngtown, AZ	1,135 ft	Jan 20	Dec 15
Laveen 3 Sse, AZ	1,135 ft	Jan 14	Dec 22
Wittmann 1Se, AZ	1,683 ft	Feb 5	Dec 11

Frost dates near Buckeye

Litchfield Park, AZ 85340 · last Jan 7, first Dec 24
Goodyear, AZ 85395 · last Jan 7, first Dec 24
Waddell, AZ 85355 · last Jan 20, first Dec 15
Avondale, AZ 85323 · last Jan 7, first Dec 24
Buckeye, AZ 85326 · last Jan 7, first Dec 24
Surprise, AZ 85388 · last Jan 20, first Dec 15
Glendale, AZ 85307 · last Jan 7, first Dec 24
Cashion, AZ 85329 · last Jan 7, first Dec 24

Frequently asked questions

When is the last frost in Buckeye, AZ?: For ZIP code 85396, the average last spring frost (32°F) is January 7, based on NOAA 1991-2020 climate normals for the Litchfield Park, AZ weather station. There is a 1-in-10 chance of a frost after February 5.
When is the first frost in Buckeye, AZ?: The average first fall frost (32°F) is December 24. There is a 1-in-10 chance of frost by December 6, so tender plants are at risk from that point on.
How long is the growing season in 85396?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 351 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.