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Net inflow to Upper Klamath Lake has increased with the cooler weather and rain events at the end of July and early August. For Water Year 2025, total inflow into Upper Klamath Lake since 1 October 2024 has exceeded 1,268,000 acre-feet (an acre-foot covers one acre of land with one foot of water). 980,000 acre-feet is around the median net-inflow to Upper Klamath Lake for the years between 1991 and 2022.
Reclamation's water managers in Water Year 2025 allowed for the early release of 35,000 acre-feet of additional scouring flows in the Klamath River below Keno in March before going into multiple days/weeks of flood control releases, which also increased the movement of sediment in the Klamath River below Keno. Project irrigators were able to refill the national wildlife refuges with water from the Lost River system while also contributing water to the Klamath River, building at one time over 72,000 acre-feet of additional storage (unfortunately, much of this additional storage was lost during flood control releases from Upper Klamath Lake in April and May). As of 15 August 2025, the Klamath Reclamation Project has returned approximately 230,000 acre-feet of water to the former lakes and wetlands (combined, these areas naturally evaporated over 513,000 acre-feet each year before the lakebeds were reclaimed for farmland or preserved for national wildlife refuges). In early March, with the early wet conditions, K.I.D. anticipated the full irrigation demand from Upper Klamath Lake storage would be slightly over 335,000 acre-feet...This number still appears accurate to ensure all crops can be harvested.
Irrigation for grains (wheat, rye, barley, oats, other cereals) and garlic is complete.
Irrigation demand for potato and onion crops will continue through mid-September.
Irrigation for alfalfa, grass hay, and pasture continues at a steady rate.
Irrigation for other market fresh vegetables, berry roots, and new seeding is anticipated in mid-September.
Irrigation for fall garlic is anticipated for October.
Operations continue under Reclamation's 2025 Operations Plan.
TheIrrO
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