When is the last frost in Quartzsite, AZ?

For ZIP code 85359, the average last spring frost (32°F) is January 28, based on NOAA 1991-2020 climate normals for the Quartzsite, AZ weather station. There is a 1-in-10 chance of a frost after February 24.

When is the first frost in Quartzsite, AZ?

The average first fall frost (32°F) is December 6. There is a 1-in-10 chance of frost by November 22, so tender plants are at risk from that point on.

How long is the growing season in 85359?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 315 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 85359Quartzsite, AZ

The average last spring frost in Quartzsite is January 28 and the average first fall frost is December 6, giving a typical growing season of about 315 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Jan 28
Average first fall frost: Dec 6
Growing season: 315 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 25 · Feb 17 · Mar 7	Nov 13 · Nov 27 · Dec 12	282 days	100%
Frost / freeze (32°F)	Dec 31 · Jan 28 · Feb 24	Nov 22 · Dec 6 · Dec 26	315 days	99%
Hard freeze (28°F)	Dec 13 · Jan 7 · Feb 5	Dec 1 · Dec 21 · Jan 13	349 days	73%

Where these dates come from

ZIP code 85359 is matched to the NOAA station Quartzsite, AZ, 1.2 km away, at 875 ft elevation (24 ft lower than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Quartzsite, AZ (used)	875 ft	Jan 28	Dec 6
Ehrenberg 2 E, AZ	465 ft	Jan 4	Dec 19
Blythe, CA	268 ft	Jan 25	Dec 12
Bouse, AZ	925 ft	Feb 18	Nov 28

Frost dates near Quartzsite

Quartzsite, AZ 85346 · last Jan 28, first Dec 6
Ehrenberg, AZ 85334 · last Jan 25, first Dec 12
Blythe, CA 92225 · last Jan 25, first Dec 12
Poston, AZ 85371 · last Jan 12, first Dec 19
Bouse, AZ 85325 · last Feb 18, first Nov 28
Parker, AZ 85344 · last Jan 12, first Dec 19
Cibola, AZ 85328 · last Jan 25, first Dec 12
Earp, CA 92242 · last Jan 12, first Dec 19

Frequently asked questions

When is the last frost in Quartzsite, AZ?: For ZIP code 85359, the average last spring frost (32°F) is January 28, based on NOAA 1991-2020 climate normals for the Quartzsite, AZ weather station. There is a 1-in-10 chance of a frost after February 24.
When is the first frost in Quartzsite, AZ?: The average first fall frost (32°F) is December 6. There is a 1-in-10 chance of frost by November 22, so tender plants are at risk from that point on.
How long is the growing season in 85359?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 315 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.