Acorn & mast crop

California mast crop reports.

2025Unknown

California deer (blacktail in coastal and Sierra zones, mule deer elsewhere) feed heavily on valley oak, blue oak, and live oak acorns where they occur. Mast is highly variable year to year and elevation to elevation, and statewide survey data is limited.

  • White Oak
  • Other Hard Mast

Multi-year trend

Year over year.

Categorical ratings per year. Overall is solid; white oak and red oak series are dashed.

YearOverallWhite oakRed oak
2022FairFairFair
2023FairFairFair
2024GoodGoodGood
2025UnknownUnknownUnknown

Yearly reports

Most recent first.

Click through to a year-specific page for a permanent reference link.

Annual mast report

2025

Unknown

White oak

Unknown

Red oak

Unknown

Other mast

Unknown

Regional notes

Statewide survey data not yet published for the current season.

Hunter implication

Crop quality not yet documented for this year. Check the linked agency source for the most current published survey, and scout productive oaks directly when in the field.

Annual mast report

2024

Good

White oak

Good

Red oak

Good

Other mast

Good

Regional notes

Wetter winter improved mast production in most coast and Sierra regions.

Hunter implication

Mast is plentiful enough to pull deer off plots and ag fields. Find the productive oaks and set up tight; expect deer to be less predictable on traditional stand sites built for travel routes.

Annual mast report

2023

Fair

White oak

Fair

Red oak

Fair

Other mast

Fair

Regional notes

Variable — some recovery in northern coast ranges, ongoing dryness in the south.

Hunter implication

Mixed conditions — some areas with productive oaks, others without. Scout for the pockets that produced and hunt the travel routes between bedding and mast. Plots and ag fields still hold deer where mast failed.

Annual mast report

2022

Fair

White oak

Fair

Red oak

Fair

Other mast

Fair

Regional notes

Drought conditions reduced acorn production in much of the state.

Hunter implication

Mixed conditions — some areas with productive oaks, others without. Scout for the pockets that produced and hunt the travel routes between bedding and mast. Plots and ag fields still hold deer where mast failed.

Hunter strategy

How to hunt a unknown mast year in California.

Without a current mast read, lean on travel-corridor and food-plot setups while you scout for productive oaks in the field.

Primary source

California Department of Forestry & Fire Protection (CAL FIRE)

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Open report

Always cross-reference with the most current published agency report before basing planning decisions on this page.

Scout mast locations on your map.

State-wide mast surveys are a starting point. Bield: Hunt lets you pin the specific oaks producing on your property, track drop year over year, and find the stands those trees pull deer to.

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