Canyon City, OR 97820 Frost Dates
97820, near Canyon City, OR: the frost window
The last spring frost here typically falls around 05/28, about 273 days from today. Fall's first freeze usually shows up around 09/18, roughly 113 days after the last spring frost.
Canyon City sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Canyon City's growing season runs out in roughly 3 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 05/28 isn't a guarantee
05/28 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/15 and only about 1 year in 10 sees frost after that.
Canyon City against the rest of the dataset
At roughly 113 frost-free days, Canyon City places 39,402 of 40,283 ZIP codes in this dataset. Within OR, it ranks 397 of 463.
Learn more
Two guides worth reading on 97820: the frost range, on how to read the range around Canyon City's dates instead of trusting one, and local microclimates, on what one yard in Canyon City can differ from the 97820 normal.