California almond crop running about 10 days ahead of normal, growers report

California almond growers reported the 2026 crop is developing about 10 days ahead of normal following a month of variable weather, late-season rain and generally favorable orchard conditions, according to a May industry update from Blue Diamond Growers.

California’s Central Valley experienced wide temperature swings throughout May, with daytime highs ranging from the low 60s to nearly 100° F. Several storm systems delivered measurable rainfall across much of the region, with most areas receiving 0.25- to 0.60-inch and localized totals exceeding 1-inch near Davis in Yolo County.

Growers spent much of the month managing vegetation, applying fertilizer and irrigating orchards, although rainfall reduced irrigation needs in some areas. While wet conditions increased concerns about fungal diseases, growers generally reported adequate protection from earlier treatments. Rain also helped limit web-spinning mite pressure.

Industry observers reported kernels in all almond varieties became fully solidified during May, providing the first clear indication of crop maturity since bloom. Growers widely agreed the crop is progressing about 10 days ahead of normal, with hull split in some early-maturing varieties expected during the week of June 21.

Pest management remained a focus. Growers and pest control advisers monitored orchards for leaffooted plant bugs, stink bugs and navel orangeworm. Preparations for hull split treatments are underway, with growers watching for splitting blank nuts, an early indicator used to fine-tune treatment timing.

Despite some wind-related tree damage and nut loss in isolated areas, growers reported orchards are generally in good condition across the Central Valley.

The full report was prepared by Mel Machado, vice president of member relations at Blue Diamond Growers.

Photos courtesy of Austin Jackson, Anthony Scudder, KC Clendenin, Christine Ivory and Mel Machado.