Frost dates in Santa Clarita, California
NOAA 1991–2020 normals for a 32 °F freeze. Low spots and the edge of town run colder than downtown.
Short answer
The average last spring frost in Santa Clarita is January 8, and the average first fall frost is January 1, from NOAA's Newhall 5NW station, 6 miles from the middle of Santa Clarita. 1 year in 10 the last frost comes after March 10, and the first one by November 30. That leaves about 358 frost-free days. Santa Clarita is in USDA planting zone 10a.
Weather stations around Santa Clarita
The first row is the date most people in Santa Clarita go by. The others show how far the dates move across the area.
| Station | Last spring frost | First fall frost | Frost-free |
|---|---|---|---|
| Newhall 5NW 6 mi away, 1,765 ft | January 8 1 in 10 after March 10 | January 1 1 in 10 by November 30 | 358 days |
| Northridge Cal State 12 mi away, 904 ft | January 2 1 in 10 after January 27 | January 1 1 in 10 by December 9 | 364 days |
| Van Nuys Airport 14 mi away, 770 ft | December 31 1 in 10 after January 27 | December 30 1 in 10 by December 9 | 364 days |
| Woodland Hills Pierce College 17 mi away, 790 ft | January 24 1 in 10 after March 5 | December 15 1 in 10 by November 27 | 325 days |
| Burbank Glendale Pasadena Airport 17 mi away, 741 ft | December 31 1 in 10 after January 15 | December 28 1 in 10 by December 11 | 362 days |
Distances are from the middle of Santa Clarita as the Census Bureau maps it. The average date is NOAA's 50% date: half of years have a later last frost, or an earlier first one. Plan by the 1-in-10 date if a freeze would cost you plants. The planting zone is the USDA 2023 zone for ZIP code 91350, at the middle of the city.
Your exact ZIP code
Santa Clarita covers a lot of ground. For the station nearest your own street, and its planting zone, type your ZIP code.
How these dates work
Frost dates come from NOAA's 1991 to 2020 Climate Normals, which work out from each weather station's daily lows how likely the last spring freeze and the first fall freeze (32 °F) are by each date. We use the station nearest the middle of your ZIP code and show its height and distance, since a station on a hill or by a lake can differ from your yard.
The average date is the 50% date: half of years have a freeze after the spring date or before the fall one. The 1-in-10 dates are NOAA's 10% dates, the ones to plan by if a late freeze would cost you plants. Within one yard, cold air pools in low spots while walls and paving hold heat, so some corners freeze before others.
More frost dates
All of California, station by station.
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Where the numbers come from
- USDA Plant Hardiness Zone Map, 2023. Agricultural Research Service, U.S. Department of Agriculture
- PRISM Climate Group, Oregon State University (zone data)
- NOAA NCEI, U.S. Climate Normals 1991–2020, annual/seasonal
- NOAA, Normals calculation methodology (frost-freeze probability dates)
- US Census Bureau, 2025 ZCTA gazetteer (ZIP code centers)
- US Census Bureau, 2025 city population estimates and place gazetteer