Troy, KS 66087 Frost Dates
Troy, KS: when does the frost end?
Typically, the last spring freeze lands around 04/19, roughly 234 days out. Fall's first freeze usually shows up around 10/19, roughly 182 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Troy in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 7 weeks until Troy'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
04/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Troy against the rest of the dataset
Troy's growing season runs about 182 days, ranking 24,228 of 40,283 US ZIP codes measured here, longest to shortest. Within KS, it ranks 471 of 745.
Learn more
Before leaning on 66087's figures: local microclimates explains what one yard in Troy can differ from the 66087 normal, while zone vs. frost date explains why Zone 6a and Troy's frost date answer different questions.