Moreno Valley, CA 92555 Frost Dates
When can you plant in Moreno Valley, CA?
The last spring frost here typically falls around 01/27, about 152 days from today. The first fall frost typically arrives around 12/19, about 329 frost-free days later.
Moreno Valley sits in USDA Zone 9b (25 to 30°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.
What to do before the first frost
About 16 weeks of growing season left in Moreno Valley before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 01/27 isn't a guarantee
01/27 is the middle of 30 years of NOAA records, not a promise. Plant by 02/28 and you're betting against frost in roughly 9 years out of 10. 12/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Moreno Valley compares
At roughly 329 frost-free days, Moreno Valley places 3,069 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,322 of 2,555.
Learn more
the frost range covers how to read the range around Moreno Valley's dates instead of trusting one. local microclimates covers what one yard in Moreno Valley can differ from the 92555 normal.