Cloud seeding by drone: what it costs, with receiptsChart of 3 sourced prices for Cloud seeding by drone (USD / season): from $950,000 to $3.5M, newest dated Aug 5, 2026. Source: Whirrwork, CC BY 4.0.Cloud seeding by drone: what it costs, with receiptsUSD / season · 3 sourced prices · newest dated Aug 5, 2026$0$1M$2M$3M$4MBear River Basin interstate cloud seeding pilot, 2025–26 season (Rainmaker drones): Idaho Water Resource Board funding approved up to this amount (budget ceiling, not a unit price)idwr.idaho.gov · Oct 20, 2025 · US$950,000Bear River Basin drone cloud seeding pilot year 2 (2026–27): Rainmaker's one-year price for Idaho's share, discounted offer to original price, per Idaho Water Resource Board meeting materials (proposal; whole joint project budgeted at $5.2 million)idwr.idaho.gov · Aug 5, 2026 · US$1.2M–$1.7MBear River Basin interstate cloud seeding pilot, 2025–26 season (Rainmaker, 32 UAS drones + 3 remote ground generators): Utah Division of Water Resources contribution ceiling per Idaho Water Resource Board materials (budget ceiling for a mixed drone/ground program, not a unit price)idwr.idaho.gov · Oct 20, 2025 · US$3.5MEach row is one published price (bar = range, dot = single figure, arrow = "from"), sorted low to high.Every source is linked at whirrwork.com/use-cases/cloud-seeding-drone/.Tracked since Oct 26, 2026; no recorded price has changed since then.Prices with receipts: whirrwork.comChart: Whirrwork · CC BY 4.0 · data recorded 2026-10-26