Limits RegistryPUBLIC RECORD
Limits RegistryAt 7:30 a.m. on 22 January 1943 in Spearfish, South Dakota, USA, a chinook wind drove the temperature from −20°C (−4°F) to 7.2°C (45°F) in two minutes — a 27.2°C (49°F) jump that remains the fastest temperature rise on record. The warm wind later retreated just as suddenly, sending temperatures plunging again.
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At 7:30 a.m. on 22 January 1943 in Spearfish, South Dakota, USA, a chinook wind drove the temperature from −20°C (−4°F) to 7.2°C (45°F) in two minutes — a 27.2°C (49°F) jump that remains the fastest temperature rise on record. The warm wind later retreated just as suddenly, sending temperatures plunging again.
The largest increase in air temperature documented at a single site over a two-minute interval.
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Limits Registry. LR-FASTEST-TEMP-RISE-2MIN. Fastest recorded air-temperature rise. 2026.