Montrose, IL 62445 Frost Dates
Montrose, IL: when does the frost end?
The last spring frost here typically falls around 04/13, about 228 days from today. Fall's first freeze usually shows up around 10/22, roughly 190 days after the last spring frost.
Montrose sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 8 weeks until Montrose's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Montrose's last frost
04/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/29 and only about 1 year in 10 sees frost after that.
Montrose against the rest of the dataset
At roughly 190 frost-free days, Montrose places 21,311 of 40,283 ZIP codes in this dataset. Within IL, it ranks 542 of 1,548.
Learn more
Before leaning on 62445's figures: zone vs. frost date explains why Zone 6b and Montrose's frost date answer different questions, while the frost range explains how to read the range around Montrose's dates instead of trusting one.