Frost dates for Irvine Ranch, California
Frost is rare here. In a typical year this station records no freeze at all, so there is no last-frost date to plan around and the growing season runs all year.
- Growing season
- All year
- Hardiness zones nearby
- 10a, 10b, 9b
Where these numbers come from
NOAA NCEI 1991–2020 Climate Normals, the Irvine Ranch station (listed by NOAA as Irvine Rch, USC00044303), at 33.72, -117.72. These are that station’s own records, unshifted. The further your garden is from it, the less exactly they describe your ground. The planner finds the nearest station to your own ZIP and lowers its confidence with distance, so no number is presented as if it were measured in your yard.
Cold air also pools in low ground on the clear, still nights when frost happens, so a hollow can freeze while a slope a few hundred feet away does not. No table can know that about your garden. Your own logged frosts eventually can.
ZIP codes nearest this station
91708, 91709, 91710, 91744, 91745, 91748, 91752, 91765, 91766, 91789, 91792, 92602, 92610, 92676, 92679, 92688, 92692, 92807, 92808, 92821, 92823, 92860, 92861, 92869, 92870, 92879, 92880, 92881, 92882, 92886, 92887.
What can I plant here, and when? ›
Nearby stations
The nearest stations and how their last-frost dates compare. Together they show how frost varies across your area.
- Tustin Irvine Ranch, CA, last frost by January 5
- Elsinore, CA, last frost by January 28
- Torrance Airport, CA, last frost by January 9
- Vista, CA, last frost by January 30
- Wrightwood, CA, last frost by May 16
- Avalon Catalina Airport, CA, frost is rare
Other stations in California.
- Lake Arrowhead, CA, last frost by May 5
- Burbank Glendale Pasadena Airport, CA, last frost by December 31
- Woodland Hills Pierce College, CA, last frost by January 24
- San Diego Seaworld, CA, frost is rare
- Oxnard Ventura County Airport, CA, frost is rare
- Fresno 5 NE, CA, last frost by January 30
- Mt Hamilton, CA, last frost by May 3
- Skyline Ridge Preserve, CA, last frost by March 21