FrostDateCheck

Menifee, CA 92548 Frost Dates

Menifee, CA: when does the frost end?

Zone 9b

The last spring frost here typically falls around 01/31, about 156 days from today. Fall's first freeze usually shows up around 12/10, roughly 315 days after the last spring frost.

Menifee 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.

Stretching the season past the first frost

With roughly 15 weeks until Menifee's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.

Why 01/31 isn't a guarantee

01/31 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/31 and only about 1 year in 10 sees frost after that.

Menifee against the rest of the dataset

At roughly 315 frost-free days, Menifee places 3,397 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,412 of 2,555.

Learn more

Before leaning on 92548's figures: local microclimates explains what one yard in Menifee can differ from the 92548 normal, while zone vs. frost date explains why Zone 9b and Menifee's frost date answer different questions.