The following is a list of events of the year 2023 in Montana.
Incumbents State government Governor: Greg Gianforte (R)
Events February 2 – 2023 Chinese balloon incident: The United States Department of Defense monitors a high-altitude balloon from China flying over Montana. The Chinese Foreign Affairs Ministry says the balloon is used for civilian meteorological research and had drifted off-course due to unexpected weather. April 26 – Zooey Zephyr, the first openly transgender member of the Montana House of Representatives, is censured by the Republican-led chamber on a party-line vote following her protest of anti-transgender legislation. Zephyr will be barred from debate until the May legislative session. May 17 – Montana Governor Greg Gianforte signs a bill banning TikTok, making Montana the first U.S. state to ban the Chinese-owned social media app. June 24 – 2023 Yellowstone River train derailment: A bridge crossing the Yellowstone River in Stillwater County collapses, causing a freight train carrying hot asphalt and molten sulfur to derail. July 22 – A deck collapse at a country club in Billings injures more than 30 people.
See also 2023 in the United States
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