Montana's lowest temperature was recorded in 1954 at -70 degrees. But in early February 2019 and into the first week of March, Montana set a brand-new bone-chilling record for consecutive below-freezing days when Great Falls concluded its 32-day streak on March 8, 2019.
- All-time highest temperature: 115° F (Beardsley on July 29, 1917)
- All-time lowest temperature: -60° F (Tower 2S on Feb. 2, 1996)
- All-time highest 24-hour precipitation: 15.1 inches (Hokah Wastewater Treatment Plant on Aug. 19, 2007)
- All-time highest 24-hour snowfall: 36 inches (Wolf Ridge Environmental Learning Center on Jan.7, 1994)
Hokah, a city in Houston County, had the state's heaviest one-day rainfall on Aug. 19, 2007. The flood of 2007 claimed the lives of six people and resulted in nearby counties also going several feet underwater.
- All-time highest temperature: 120° F (Fort Pierre 17 WSW on July 15, 2006)
- All-time lowest temperature: -58° F (McIntosh 6 SE on Feb.17, 1936)
- All-time highest 24-hour precipitation: 8.74 inches (Groton on May 6, 2007)
- All-time highest 24-hour snowfall: 52 inches (Lead on March 14, 1973)
Record heat in 2006 resulted in the state's highest temperature in Fort Pierre, a city in Stanley County. The heat wave during July 2006 was so intense in South Dakota, Kansas, and Nebraska that it ended up disrupting transportation links and straining electric power grids.`