Lake Havasu City, AZ 86404 Frost Dates
Lake Havasu City, AZ: when does the frost end?
Typically, the last spring freeze lands around 01/05, roughly 130 days out. Fall's first freeze usually shows up around 12/29, roughly 365 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Lake Havasu City in Zone 10a (30 to 35°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 18 weeks until Lake Havasu City'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
01/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/17 and only about 1 year in 10 sees frost after that.
Lake Havasu City against the rest of the dataset
About 365 days separate Lake Havasu City's last and first frost, putting it 779 of 40,283 ZIP codes nationally. Within AZ, it ranks 11 of 506.
Learn more
Before leaning on 86404's figures: zone vs. frost date explains why Zone 10a and Lake Havasu City's frost date answer different questions, while the frost range explains how to read the range around Lake Havasu City's dates instead of trusting one.