When is the last frost in Dateland, AZ?

For ZIP code 85333, the average last spring frost (32°F) is January 25, based on NOAA 1991-2020 climate normals for the Dateland Whitewing Rch, AZ weather station. There is a 1-in-10 chance of a frost after February 25.

When is the first frost in Dateland, AZ?

The average first fall frost (32°F) is December 13. There is a 1-in-10 chance of frost by November 29, so tender plants are at risk from that point on.

How long is the growing season in 85333?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 324 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 85333Dateland, AZ

The average last spring frost in Dateland is January 25 and the average first fall frost is December 13, giving a typical growing season of about 324 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Jan 25
Average first fall frost: Dec 13
Growing season: 324 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 20 · Feb 18 · Mar 28	Nov 18 · Dec 1 · Dec 16	282 days	100%
Frost / freeze (32°F)	Dec 27 · Jan 25 · Feb 25	Nov 29 · Dec 13 · Jan 1	324 days	98%
Hard freeze (28°F)	Dec 12 · Jan 2 · Feb 4	Dec 6 · Dec 24 · Jan 22	361 days	59%

Where these dates come from

ZIP code 85333 is matched to the NOAA station Dateland Whitewing Rch, AZ, 11.9 km away, at 520 ft elevation (90 ft higher than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Dateland Whitewing Rch, AZ (used)	520 ft	Jan 25	Dec 13
Tacna 3 Ne, AZ	324 ft	Feb 13	Dec 1
Painted Rock Dam, AZ	568 ft	Jan 21	Dec 15
Kofa Mine, AZ	1,775 ft	Jan 11	Jan 9

Frost dates near Dateland

Roll, AZ 85347 · last Feb 13, first Dec 1
Tacna, AZ 85352 · last Feb 13, first Dec 1
Gila Bend, AZ 85337 · last Jan 23, first Dec 11
Wellton, AZ 85356 · last Feb 13, first Dec 1
Tonopah, AZ 85354 · last Feb 5, first Dec 11
Arlington, AZ 85322 · last Jan 23, first Dec 11
Palo Verde, AZ 85343 · last Jan 7, first Dec 24
Yuma, AZ 85367 · last Jan 4, first Dec 25

Frequently asked questions

When is the last frost in Dateland, AZ?: For ZIP code 85333, the average last spring frost (32°F) is January 25, based on NOAA 1991-2020 climate normals for the Dateland Whitewing Rch, AZ weather station. There is a 1-in-10 chance of a frost after February 25.
When is the first frost in Dateland, AZ?: The average first fall frost (32°F) is December 13. There is a 1-in-10 chance of frost by November 29, so tender plants are at risk from that point on.
How long is the growing season in 85333?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 324 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.