Bloomfield, IA 52537 Frost Dates
Bloomfield, IA: when does the frost end?
The last spring frost here typically falls around 04/16, about 231 days from today. Fall's first freeze usually shows up around 10/22, roughly 188 days after the last spring frost.
Bloomfield sits in USDA Zone 5b (-15 to -10°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 Bloomfield's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Bloomfield's last frost
04/16 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 04/30 and only about 1 year in 10 sees frost after that.
Bloomfield against the rest of the dataset
Bloomfield's growing season runs about 188 days, ranking 22,055 of 40,283 US ZIP codes measured here, longest to shortest. Within IA, it ranks 9 of 1,042.
Learn more
Before leaning on 52537's figures: the frost range explains how to read the range around Bloomfield's dates instead of trusting one, while local microclimates explains what one yard in Bloomfield can differ from the 52537 normal.