When is the last frost in Hydesville, CA?

For ZIP code 95547, the average last spring frost (32°F) is February 1, based on NOAA 1991-2020 climate normals for the Scotia, CA weather station. There is a 1-in-10 chance of a frost after March 8.

When is the first frost in Hydesville, CA?

The average first fall frost (32°F) is December 19. There is a 1-in-10 chance of frost by November 19, so tender plants are at risk from that point on.

How long is the growing season in 95547?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 328 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 95547Hydesville, CA

The average last spring frost in Hydesville is February 1 and the average first fall frost is December 19, giving a typical growing season of about 328 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Feb 1
Average first fall frost: Dec 19
Growing season: 328 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)	Feb 1 · Mar 14 · Apr 9	Nov 1 · Nov 23 · Dec 23	255 days	100%
Frost / freeze (32°F)	Dec 17 · Feb 1 · Mar 8	Nov 19 · Dec 19 · Feb 10	328 days	84%
Hard freeze (28°F)	Dec 15 · Jan 3 · Jan 31	Dec 7 · Dec 31 · Jan 28	365 days	20%

Where these dates come from

ZIP code 95547 is matched to the NOAA station Scotia, CA, 7.4 km away, at 136 ft elevation (195 ft lower than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Scotia, CA (used)	136 ft	Feb 1	Dec 19
Grizzly Creek Sp, CA	413 ft	Mar 4	Nov 22
Eureka Wfo Woodley Island, CA	20 ft	Feb 22	Dec 7
Arcata Eureka Ap, CA	200 ft	Mar 8	Nov 30

Frost dates near Hydesville

Rio Dell, CA 95562 · last Feb 1, first Dec 19
Fortuna, CA 95540 · last Feb 1, first Dec 19
Carlotta, CA 95528 · last Mar 4, first Nov 22
Scotia, CA 95565 · last Feb 1, first Dec 19
Ferndale, CA 95536 · last Feb 1, first Dec 19
Loleta, CA 95551 · last Feb 1, first Dec 19
Kneeland, CA 95549 · last Apr 16, first Oct 31
Fields Landing, CA 95537 · last Feb 22, first Dec 7

Frequently asked questions

When is the last frost in Hydesville, CA?: For ZIP code 95547, the average last spring frost (32°F) is February 1, based on NOAA 1991-2020 climate normals for the Scotia, CA weather station. There is a 1-in-10 chance of a frost after March 8.
When is the first frost in Hydesville, CA?: The average first fall frost (32°F) is December 19. There is a 1-in-10 chance of frost by November 19, so tender plants are at risk from that point on.
How long is the growing season in 95547?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 328 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.