Kamrar, IA 50132 Frost Dates
50132, near Kamrar, IA: the frost window
Typically, the last spring freeze lands around 05/03, roughly 248 days out. Fall's first freeze usually shows up around 10/02, roughly 150 days after the last spring frost.
Kamrar sits in USDA Zone 5a (-20 to -15°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
Kamrar's growing season runs out in roughly 5 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Kamrar's last frost
05/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/16 and only about 1 year in 10 sees frost after that.
Kamrar against the rest of the dataset
At roughly 150 frost-free days, Kamrar places 35,436 of 40,283 ZIP codes in this dataset. Within IA, it ranks 1,021 of 1,042.
Learn more
Two guides worth reading on 50132: zone vs. frost date, on why Zone 5a and Kamrar's frost date answer different questions, and the frost range, on how to read the range around Kamrar's dates instead of trusting one.