Oklahoma City, OK 73106 Frost Dates
Oklahoma City, OK: when does the frost end?
Typically, the last spring freeze lands around 04/02, roughly 217 days out. Fall's first freeze usually shows up around 11/04, roughly 216 days after the last spring frost.
Zone 7b (5 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 Oklahoma City, not a forecast for this year.
Stretching the season past the first frost
With roughly 10 weeks until Oklahoma City's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Oklahoma City's last frost
04/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/18 and only about 1 year in 10 sees frost after that.
Oklahoma City against the rest of the dataset
At roughly 216 frost-free days, Oklahoma City places 13,667 of 40,283 ZIP codes in this dataset. Within OK, it ranks 304 of 764.
Learn more
Before leaning on 73106's figures: the frost range explains how to read the range around Oklahoma City's dates instead of trusting one, while local microclimates explains what one yard in Oklahoma City can differ from the 73106 normal.