KUSA - The most the temperature has ever changed in Denver in one day was 66 degrees back on January 25, 1872.
According to the National Weather Service, the city went from a high of 46 degrees to a low of -20 degrees from midnight to midnight.
With a record high of 84 degrees on Wednesday and snow in the forecast on Thursday, it will be a shock to the system, but not something new to people who have lived here for a while.
We currently expect to be at about 57 degrees at midnight and the temperature should continually drop from there, reaching somewhere near 31 degrees by midnight on Friday. That would be a drop of about 26 degrees. You'll certainly feel it, but it's still less than half of that record-breaking day in 1872.
More recently, on January 5, 2015, the temperature fell 61 degrees from 56 degrees to -2 degrees. That tied a day in 1879 for number 3 on the list.
Here's the full list of the top ten one-day temperature swings, from the National Weather Service:
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