When is the last frost in Los Banos, CA?

For ZIP code 93635, the average last spring frost (32°F) is January 26, based on NOAA 1991-2020 climate normals for the Los Banos, CA weather station. There is a 1-in-10 chance of a frost after February 20.

When is the first frost in Los Banos, CA?

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

How long is the growing season in 93635?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 322 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 93635Los Banos, CA

The average last spring frost in Los Banos is January 26 and the average first fall frost is December 10, giving a typical growing season of about 322 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Jan 26
Average first fall frost: Dec 10
Growing season: 322 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 26 · Feb 24 · Apr 3	Nov 12 · Nov 27 · Dec 11	273 days	100%
Frost / freeze (32°F)	Dec 29 · Jan 26 · Feb 20	Nov 26 · Dec 10 · Jan 4	322 days	96%
Hard freeze (28°F)	Dec 17 · Jan 6 · Feb 4	Dec 6 · Dec 24 · Jan 19	356 days	64%

Where these dates come from

ZIP code 93635 is matched to the NOAA station Los Banos, CA, 1.3 km away, at 120 ft elevation (2 ft higher than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Los Banos, CA (used)	120 ft	Jan 26	Dec 10
Los Banos Det Resv, CA	407 ft	Jan 13	Dec 14
San Luis Dam, CA	277 ft	Jan 27	Dec 11
Merced 23 Wsw, CA	78 ft	Mar 28	Nov 14

Frost dates near Los Banos

Gustine, CA 95322 · last Feb 26, first Nov 29
Dos Palos, CA 93620 · last Jan 26, first Dec 10
South Dos Palos, CA 93665 · last Jan 26, first Dec 10
Santa Rita Park, CA 93661 · last Feb 26, first Nov 25
Stevinson, CA 95374 · last Mar 28, first Nov 14
El Nido, CA 95317 · last Feb 26, first Nov 25
Newman, CA 95360 · last Feb 26, first Nov 29
Merced, CA 95341 · last Feb 26, first Nov 25

Frequently asked questions

When is the last frost in Los Banos, CA?: For ZIP code 93635, the average last spring frost (32°F) is January 26, based on NOAA 1991-2020 climate normals for the Los Banos, CA weather station. There is a 1-in-10 chance of a frost after February 20.
When is the first frost in Los Banos, CA?: The average first fall frost (32°F) is December 10. There is a 1-in-10 chance of frost by November 26, so tender plants are at risk from that point on.
How long is the growing season in 93635?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 322 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.