Sedgwick, CO 80749 Frost Dates
Sedgwick, CO: when does the frost end?
Typically, the last spring freeze lands around 05/06, roughly 251 days out. Fall's first freeze usually shows up around 10/07, roughly 152 days after the last spring frost.
Sedgwick sits in USDA Zone 5b (-15 to -10°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
With roughly 6 weeks until Sedgwick's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/06 isn't a guarantee
05/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/18 and only about 1 year in 10 sees frost after that.
Sedgwick against the rest of the dataset
Sedgwick's growing season runs about 152 days, ranking 34,909 of 40,283 US ZIP codes measured here, longest to shortest. Within CO, it ranks 299 of 624.
Learn more
Before leaning on 80749's figures: local microclimates explains what one yard in Sedgwick can differ from the 80749 normal, while zone vs. frost date explains why Zone 5b and Sedgwick's frost date answer different questions.