When was Patterson Lake last stocked?

The latest reported stocking was Sep 16, 2026 (brown trout, 2,150 fish), according to Washington agency reports.

How often is Patterson Lake stocked?

Stocked 3 times in 2025, mostly in September, usually on Tuesdays, about every 112 days. Across all years on record, most stockings come in September.

What kind of trout are stocked in Patterson Lake?

Kokanee (4 stockings, 50,073 fish); Brown trout (2 stockings, 4,650 fish); Rainbow trout (1 stocking, 2,500 fish).

Patterson Lake trout stocking

Okanogan County, Washington · lake

Patterson Lake was last stocked 9 days ago (Sep 16, 2026). We have 7 stockings on record since May 20, 2025, 3 in the last 12 months (29,650 fish). Most stockings come in September. Species stocked: kokanee, brown trout, rainbow trout.

Last stocked

9 days ago

Sep 16, 2026

Next planned

Not announced

Last 12 months

3 stockings

29,650 fish

On record

7 stockings

since May 20, 2025

When is Patterson Lake stocked?

Most stockings come in September. Stocked 3 times in 2025, mostly in September, usually on Tuesdays, about every 112 days.

By month, all years

Stockings of Patterson Lake by month, all years on record. This month is shown in blue.

Year by year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2026						1			1
2025					1				2

What is stocked

Species	Stockings	Fish	Fish per stocking
Kokanee	4	50,073	12,518
Brown trout	2	4,650	2,325
Rainbow trout	1	2,500	2,500

Stocking history

Date	Species	Fish	Pounds	Hatchery
Sep 16, 2026	Brown trout	2,150	860	Chelan Hatchery
Jun 2, 2026	Kokanee	8,771	30	Omak Hatchery
Jun 2, 2026	Kokanee	16,229	55	Omak Hatchery
Sep 26, 2025	Rainbow trout	2,500	893	Chelan Hatchery
Sep 9, 2025	Brown trout	2,500	962	Chelan Hatchery
May 20, 2025	Kokanee	4,492	21	Omak Hatchery
May 20, 2025	Kokanee	20,581	98	Omak Hatchery

From Washington fish and wildlife agency reports, collected nightly and kept after the agency takes them down. Agencies revise reports; check the agency's report before you go.

Other stocked waters in Okanogan County

Molson Lakelakestocked Sep 18, 2026
Sidley Lakelakestocked Sep 18, 2026
Aeneas Lakelakestocked Sep 17, 2026
Blue Lakelakestocked Sep 17, 2026
Bonaparte Lakelakestocked Sep 17, 2026
Leader Lakelakestocked Sep 16, 2026
Rat Lakelakestocked Sep 15, 2026
Lyman Lakelakestocked Aug 19, 2026

All stocked waters in Okanogan County Stocked this week in Washington

Questions about Patterson Lake

When was Patterson Lake last stocked?: The latest reported stocking was Sep 16, 2026 (brown trout, 2,150 fish), according to Washington agency reports.
How often is Patterson Lake stocked?: Stocked 3 times in 2025, mostly in September, usually on Tuesdays, about every 112 days. Across all years on record, most stockings come in September.
What kind of trout are stocked in Patterson Lake?: Kokanee (4 stockings, 50,073 fish); Brown trout (2 stockings, 4,650 fish); Rainbow trout (1 stocking, 2,500 fish).