Morrison, MO 65061 Frost Dates
Morrison, MO: when does the frost end?
Typically, the last spring freeze lands around 04/11, roughly 226 days out. Fall's first freeze usually shows up around 10/21, roughly 191 days after the last spring frost.
Zone 6b (-5 to 0°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 Morrison, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Morrison's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Morrison's last frost
04/11 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/30 and only about 1 year in 10 sees frost after that.
Morrison against the rest of the dataset
Morrison's growing season runs about 191 days, ranking 20,944 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 765 of 1,129.
Learn more
Before leaning on 65061's figures: local microclimates explains what one yard in Morrison can differ from the 65061 normal, while zone vs. frost date explains why Zone 6b and Morrison's frost date answer different questions.