Loveland, CO 80538 Frost Dates
Loveland, CO: when does the frost end?
Around 05/10 is the usual last spring frost, about 255 days away. Fall's first freeze usually shows up around 10/01, roughly 142 days after the last spring frost.
Zone 5b (-15 to -10°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 Loveland, not a forecast for this year.
Stretching the season past the first frost
With roughly 5 weeks until Loveland's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
05/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/22 and only about 1 year in 10 sees frost after that.
Loveland against the rest of the dataset
At roughly 142 frost-free days, Loveland places 36,698 of 40,283 ZIP codes in this dataset. Within CO, it ranks 387 of 624.
Learn more
Before leaning on 80538's figures: the frost range explains how to read the range around Loveland's dates instead of trusting one, while local microclimates explains what one yard in Loveland can differ from the 80538 normal.