Lakewood, CO 80227 Frost Dates
Lakewood, CO: when does the frost end?
Typically, the last spring freeze lands around 05/02, roughly 247 days out. Fall's first freeze usually shows up around 10/11, roughly 160 days after the last spring frost.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Lakewood, not a forecast for this year.
Stretching the season past the first frost
With roughly 6 weeks until Lakewood's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/02 isn't a guarantee
05/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/17 and only about 1 year in 10 sees frost after that.
Lakewood against the rest of the dataset
At roughly 160 frost-free days, Lakewood places 32,186 of 40,283 ZIP codes in this dataset. Within CO, it ranks 84 of 624.
Learn more
Before leaning on 80227's figures: local microclimates explains what one yard in Lakewood can differ from the 80227 normal, while zone vs. frost date explains why Zone 6a and Lakewood's frost date answer different questions.