Oak Ridge, MO 63747 Frost Dates
When can you plant in Oak Ridge, MO?
Typically, the last spring freeze lands around 04/19, roughly 234 days out. The first fall frost typically arrives around 10/20, about 182 frost-free days later.
Zone 7a (0 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 Oak Ridge, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Oak Ridge before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Oak Ridge's last frost
04/19 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 and you're betting against frost in roughly 9 years out of 10. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Oak Ridge compares
Oak Ridge's growing season runs about 182 days, ranking 24,327 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 977 of 1,129.
Learn more
zone vs. frost date covers why Zone 7a and Oak Ridge's frost date answer different questions. the frost range covers how to read the range around Oak Ridge's dates instead of trusting one.