When is the last frost in Menifee, CA?

The average last spring frost (50% probability of 32°F) in Menifee is around January 28, based on NOAA/NCEI 1991–2020 normals at the Elsinore, CA station (9.6 mi away). Half of years it falls outside that date, so wait 1–2 weeks past it before setting out frost-tender plants.

When is the first fall frost in Menifee?

The average first fall frost in Menifee, CA is around December 18, giving roughly a 329-day frost-free growing season.

What planting zone is Menifee, CA?

Menifee is in USDA plant hardiness zone 9b (average annual extreme minimum temperature 25 to 30°F), from the 2023 USDA Plant Hardiness Zone Map.

What is the weather like in Menifee?

In Menifee, CA the warmest month is August (avg high 97.8°F) and the coldest is December (avg low 40.3°F). It averages about 11.7″ of precipitation a year and 0.2″ of snow.

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Menifee, CA Planting Calendar & Frost Dates

USDA hardiness zone 9b · ZIP 92584 · elevation 387′ · NOAA & USDA data

Menifee is in USDA hardiness zone 9b (winters can dip to 25 to 30°F), with a growing season of about 329 days between the average last spring frost (January 28) and first fall frost (December 18). The warmest month is August (avg high 97.8°F); the coldest is December (avg low 40.3°F). It averages 11.7″ of precipitation a year and 0.2″ of snow, mostly mid-winter. Start cool-season crops several weeks before the last frost; wait until after it for tomatoes, peppers and other tender crops.

Hardiness zone

min temp 25 to 30°F

Last spring frost

January 28

avg (50% prob, 32°F)

First fall frost

December 18

avg (50% prob, 32°F)

Growing season

329 days

frost-free window

Warmest month

August

avg high 97.8°F

Month-by-month typical weather in Menifee

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Elsinore, CA (9.6 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	65.7	41.9	53.8	3	0
February	67.1	42.7	54.9	2.9	0
March	71.5	45.8	58.7	1.5	0
April	76.5	48.7	62.6	0.5	0.2
May	82	53.8	67.9	0.2	0
June	90.2	58.3	74.3	0.1	0
July	96.5	64.1	80.3	0.2	0
August	97.8	64.8	81.3	0.1	0
September	93.2	61.2	77.2	0.2	0
October	83.1	53.9	68.5	0.5	0
November	73.2	45.9	59.6	0.6	0
December	65	40.3	52.6	2	0

What to plant when in Menifee

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: December 17 · Transplant out: February 4
Peppers	warm	Start seeds indoors: December 3 · Transplant out: February 11
Cucumbers	warm	Direct sow: February 4
Zucchini / squash	warm	Direct sow: February 4
Bush beans	warm	Direct sow: February 4
Sweet corn	warm	Direct sow: February 4
Basil	warm	Transplant out: February 4
Peas	cool	Sow (spring): December 24 · Sow (fall): October 23
Spinach	cool	Sow (spring): December 17 · Sow (fall): October 23
Lettuce	cool	Sow (spring): December 31 · Sow (fall): October 23
Kale	cool	Transplant (spring): January 7 · Sow (fall): October 9
Broccoli	cool	Transplant (spring): January 14
Carrots	cool	Sow (spring): January 7 · Sow (fall): October 9
Onions	cool	Transplant (spring): December 31
Potatoes	cool	Plant seed potatoes: January 14
Radishes	cool	Sow (spring): December 31 · Sow (fall): November 6

Dates are computed from Menifee's average frost dates using standard cool-/warm-season timing. They're a starting point — a cold spring, a warm microclimate, or a fast-maturing variety can shift them by a week or two.

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Gear that helps you plant on time

Some links below are Amazon affiliate links (tag theboringthin-20). If you buy through them we may earn a small commission at no extra cost to you — it keeps this almanac free. We only list generic, genuinely-useful categories.

Soil thermometer →Know when the ground is warm enough to sow — the honest signal, not the calendar.Seed-starting trays + dome →Start tomatoes & peppers indoors on the schedule below.Seedling heat mat →Warms the soil for faster, more even germination indoors.Floating row cover / frost cloth →Buys you 4–8°F to beat an early or late frost.Raised garden bed kit →Warms and drains faster in spring than in-ground soil.Garden gloves →Basic kit for transplant day.

Nearby cities in California

Temecula, CA Lake Elsinore, CA Perris, CA Hemet, CA Murrieta, CA San Jacinto, CA Moreno Valley, CA Riverside, CA

Sources & method. Hardiness zone: 2023 USDA Plant Hardiness Zone Map (PRISM Climate Group, Oregon State University). Frost dates & growing season: NOAA/NCEI 1991–2020 U.S. Climate Normals, nearest station with published freeze normals — Elsinore, CA, 9.6 mi (confidence: high). Monthly weather normals: Elsinore, CA, 9.6 mi (confidence: high). ZIP centroid from U.S. Census 2023 ZCTA data. Frost dates are the 50%-probability date — half of years frost occurs outside the stated date. Nothing here is invented; where the nearest station is far, we say so. Last updated 2026-07-22.