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Updated:December 4, 2025 3:31 am PST

Frost Advisory FROST ADVISORY  
Mendocino County
Effective: Wed, 12/3 9:16pm Severity: Minor
Updated: December 4, 2025 3:31 am Urgency: Expected
Expires: Thu, 12/4 6:15am Certainty: Likely
Areas Affected: Del Norte Interior - Northern Humboldt Coast - Southwestern Humboldt - Northern Humboldt Interior - Southern Humboldt Interior - Mendocino Coast - Southwestern Mendocino Interior - Southeastern Mendocino Interior
 
Alert Details: 
* WHAT...Temperatures as low as 36 will result in frost formation.

* WHERE...Humboldt County, Southern Mendocino Interior, Del Norte
Interior, and Mendocino Coast.

* WHEN...From 3 AM to 9 AM PST Thursday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.

Information: 
Take steps now to protect tender plants from the cold.