Norwood, CO 81423 Frost Dates
When can you plant in Norwood, CO?
The last spring frost here typically falls around 05/25, about 270 days from today. The first fall frost typically arrives around 10/01, about 128 frost-free days later.
The USDA Plant Hardiness Zone Map puts Norwood in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 5 weeks of growing season left in Norwood before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/25 isn't a guarantee
05/25 is the middle of 30 years of NOAA records, not a promise. Plant by 05/07 and you're betting against frost in roughly 9 years out of 10. 06/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Norwood compares
About 128 days separate Norwood's last and first frost, putting it 38,572 of 40,283 ZIP codes nationally. Within CO, it ranks 447 of 624.
Learn more
local microclimates covers what one yard in Norwood can differ from the 81423 normal. zone vs. frost date covers why Zone 6a and Norwood's frost date answer different questions.