Litchfield Park, AZ 85355 Frost Dates
When can you plant in Litchfield Park, AZ?
Typically, the last spring freeze lands around 01/07, roughly 132 days out. The first fall frost typically arrives around 12/24, about 351 frost-free days later.
The USDA Plant Hardiness Zone Map puts Litchfield Park in Zone 9b (25 to 30°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 17 weeks of growing season left in Litchfield Park before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Litchfield Park's last frost
01/07 is the middle of 30 years of NOAA records, not a promise. Plant by 02/05 and you're betting against frost in roughly 9 years out of 10. 12/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Litchfield Park compares
About 351 days separate Litchfield Park's last and first frost, putting it 2,315 of 40,283 ZIP codes nationally. Within AZ, it ranks 75 of 506.
Learn more
zone vs. frost date covers why Zone 9b and Litchfield Park's frost date answer different questions. the frost range covers how to read the range around Litchfield Park's dates instead of trusting one.