(Related Video: This year’s Halloween Forecast!)

(SOUTHERN COLORADO) — Any kid who’s ever grumpily layered a puffy coat over their Halloween costume in Colorado knows the weather for this particular holiday can swing from unseasonably warm to brutally cold, and occasionally snowy.

The reason for this is the holiday’s position in the middle of a transition season of fall. Here’s a short look at the record extremes for Oct. 31 in Colorado Springs and Pueblo and some of the more eventful Halloweens.

In terms of warmth, we have definitely seen it–Colorado Springs hit a high of 80°F on Oct. 31 in 2016. A very mild autumn day for the Front Range, with temperatures feeling more like late summer than late-October. On the same day in 2016, Pueblo hit a high of 84°F. Pueblo often runs warmer than nearby higher-elevation towns, and 2016 delivered one of the warmest Halloweens on record.

When it comes to the cold, Halloween 2019 takes the crown. Colorado Springs dropped to a bone-chilling 7°F on Oct. 31, 2019. It was one of the coldest Halloweens locals could remember, forcing trick-or-treaters to bundle up in full winter gear over their costumes (boo!). Pueblo went even colder that same night, bottoming out at –5°F. The city’s lower elevation and clear skies allowed for strong radiational cooling, sending temperatures plummeting well below zero.

And then there’s the snow. The snowiest Halloween on record dates back to 1972, when Colorado Springs picked up an incredible 13.8 inches of snow on Oct. 31. Down in Pueblo, the same storm dropped 12.6 inches, transforming the city into a winter wonderland. That 1972 Halloween remains one of the most memorable autumn snow events in southern Colorado history because of its early season arrival.

Those extremes show how fast autumn can flip in this region: the same calendar date has produced 80-degree warmth, subzero lows, and a foot-plus of snow. Luckily this year’s forecast is shaping up to be very mild and just a tad chilly!