The National Weather Service in Boulder says that Antero Reservoir recorded a temperature of -50 degrees Fahrenheit on Wednesday morning.
The NWS said that low ties for the fourth coldest reading observed there since records started in 1961.
Colorado’s all-time coldest temperature since recordings started was in Maybell on Feb. 1, 1985. That temperature was -61 degrees.
These are the rankings, according to the National Weather Service.