When is the last frost in Glendale, CA?

For ZIP code 91205, the average last spring frost (32°F) is January 2, based on NOAA 1991-2020 climate normals for the Burbank Valley Pump Plt, CA weather station. There is a 1-in-10 chance of a frost after January 31.

When is the first frost in Glendale, CA?

The average first fall frost (32°F) is December 26. There is a 1-in-10 chance of frost by December 5, so tender plants are at risk from that point on.

How long is the growing season in 91205?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 364 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 91205Glendale, CA

The average last spring frost in Glendale is January 2 and the average first fall frost is December 26, giving a typical growing season of about 364 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Jan 2
Average first fall frost: Dec 26
Growing season: 364 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)	Dec 31 · Feb 5 · Mar 10	Nov 23 · Dec 12 · Jan 3	308 days	98%
Frost / freeze (32°F)	Dec 11 · Jan 2 · Jan 31	Dec 5 · Dec 26 · Jan 18	364 days	55%
Hard freeze (28°F)	—	—	365 days	3%

Where these dates come from

ZIP code 91205 is matched to the NOAA station Burbank Valley Pump Plt, CA, 11.1 km away, at 655 ft elevation (133 ft higher than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Burbank Valley Pump Plt, CA (used)	655 ft	Jan 2	Dec 26
Pasadena, CA	864 ft	Jan 8	Jan 7
Los Angeles Dwtn Usc Campus, CA	230 ft	—	—
Burbank Glendale Pasadena Ap, CA	741 ft	Dec 31	Dec 28

Frost dates near Glendale

Glendale, CA 91209 · last Jan 2, first Dec 26
Los Angeles, CA 90041 · last Jan 2, first Dec 26
Burbank, CA 91502 · last Jan 2, first Dec 26
Dodgertown, CA 90090 · last Jan 2, first Dec 26
Pasadena, CA 91105 · last Jan 8, first Jan 7
Montrose, CA 91021 · last Jan 8, first Jan 7
Verdugo City, CA 91046 · last Jan 8, first Jan 7
La Canada Flintridge, CA 91012 · last Jan 8, first Jan 7

Frequently asked questions

When is the last frost in Glendale, CA?: For ZIP code 91205, the average last spring frost (32°F) is January 2, based on NOAA 1991-2020 climate normals for the Burbank Valley Pump Plt, CA weather station. There is a 1-in-10 chance of a frost after January 31.
When is the first frost in Glendale, CA?: The average first fall frost (32°F) is December 26. There is a 1-in-10 chance of frost by December 5, so tender plants are at risk from that point on.
How long is the growing season in 91205?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 364 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.