Glendale, CO 80210 Frost Dates
Glendale, CO: when does the frost end?
Typically, the last spring freeze lands around 04/30, roughly 245 days out. Fall's first freeze usually shows up around 10/12, roughly 165 days after the last spring frost.
Glendale sits in USDA Zone 6a (-10 to -5°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 Glendale's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Glendale's last frost
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
Glendale against the rest of the dataset
About 165 days separate Glendale's last and first frost, putting it 30,554 of 40,283 ZIP codes nationally. Within CO, it ranks 49 of 624.
Learn more
Before leaning on 80210's figures: zone vs. frost date explains why Zone 6a and Glendale's frost date answer different questions, while the frost range explains how to read the range around Glendale's dates instead of trusting one.