When is the last frost in Willow Beach, AZ?

For ZIP code 86445, the average last spring frost (32°F) is February 4, based on NOAA 1991-2020 climate normals for the Temple Bar, AZ weather station. There is a 1-in-10 chance of a frost after February 25.

When is the first frost in Willow Beach, AZ?

The average first fall frost (32°F) is December 10. There is a 1-in-10 chance of frost by November 27, so tender plants are at risk from that point on.

How long is the growing season in 86445?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 309 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 86445Willow Beach, AZ

The average last spring frost in Willow Beach is February 4 and the average first fall frost is December 10, giving a typical growing season of about 309 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Feb 4
Average first fall frost: Dec 10
Growing season: 309 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 5 · Feb 24 · Mar 11	Nov 17 · Nov 30 · Dec 12	278 days	100%
Frost / freeze (32°F)	Jan 6 · Feb 4 · Feb 25	Nov 27 · Dec 10 · Dec 25	309 days	100%
Hard freeze (28°F)	Dec 20 · Jan 8 · Feb 5	Dec 6 · Dec 23 · Jan 14	348 days	80%

Where these dates come from

ZIP code 86445 is matched to the NOAA station Temple Bar, AZ, 32.2 km away, at 1,280 ft elevation (984 ft lower than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Temple Bar, AZ (used)	1,280 ft	Feb 4	Dec 10
Willow Beach, AZ	740 ft	Jan 7	Dec 29
Alan Bible Visitor Ctr, NV	1,641 ft	Jan 21	Dec 17
Callville Bay, NV	1,270 ft	Jan 31	Dec 11

Frost dates near Willow Beach

Dolan Springs, AZ 86441 · last Mar 5, first Nov 28
Boulder City, NV 89005 · last Feb 4, first Dec 5
Meadview, AZ 86444 · last Mar 5, first Nov 28
Searchlight, NV 89046 · last Mar 7, first Nov 29
The Lakes, NV 88905 · last Feb 4, first Dec 5
Henderson, NV 89009 · last Feb 4, first Dec 5
Chloride, AZ 86431 · last Apr 2, first Nov 11
Coyote Springs, NV 89037 · last Feb 1, first Dec 8

Frequently asked questions

When is the last frost in Willow Beach, AZ?: For ZIP code 86445, the average last spring frost (32°F) is February 4, based on NOAA 1991-2020 climate normals for the Temple Bar, AZ weather station. There is a 1-in-10 chance of a frost after February 25.
When is the first frost in Willow Beach, AZ?: The average first fall frost (32°F) is December 10. There is a 1-in-10 chance of frost by November 27, so tender plants are at risk from that point on.
How long is the growing season in 86445?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 309 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.