USDA Hardiness Zone 11a
Frost Dates for 90254 — Hermosa Beach, California
NOAA 1991–2020 normals from Redondo Beach, CA (142 ft), 3 miles southeast.
Updated
Frost is not a yearly event in Hermosa Beach: a night at or below 32°F came in 3% of the winters of 1991–2020 at Redondo Beach, CA, and a 36°F night, cold enough for frost on exposed leaves, in 50%. There is no reliable "last frost date" here; most years have none.
- Winters with a freeze
- 3%
- Winters with 36°F
- 50%
- Coldest month low
- —
- Hardiness zone
- 11a
32°F or below, 1991–2020
frost possible on leaves
40 to 45°F (4.4 to 7.2°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 0%
- Snow per year
- 0"
median, 1991–2020
median, 1991–2020
0 of 20 observed
NOAA normal
Frost risk by date in Hermosa Beach
At Redondo Beach, CA, 3 miles southeast of Hermosa Beach, 3% of the winters of 1991–2020 had at least one night at or below 32°F, and none reached 28°F. Nights of 36°F, enough for frost on exposed leaves, are more common (50% of winters) and, when they come, fall between about December 29 and January 10. 62 of the 283 other California stations behind this site's ZIP pages freeze in fewer than half of winters too.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F50% of yrs | Dec 16 | Dec 24 | Dec 31 | Jan 3 | Jan 10 | Jan 18 | Jan 28 | Feb 7 | Feb 21 |
| 32°F3% of yrs | too rare for a date | ||||||||
| 28°F0% of yrs | never in 1991–2020 | ||||||||
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F50% of yrs | Dec 10 | Dec 15 | Dec 20 | Dec 24 | Dec 29 | Jan 2 | Jan 8 | Jan 21 | Feb 5 |
| 32°F3% of yrs | too rare for a date | ||||||||
| 28°F0% of yrs | never in 1991–2020 | ||||||||
Freeze probabilities 1991–2020 at Redondo Beach, CA, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.
Frost risk on any date in 90254 →Compare Hermosa Beach with another place →
Compared with the next station
The nearest other station, Los Angeles International Airport, CA, 5 miles north of Hermosa Beach, has a 32°F night in 0% of winters against 3% here.
When it snows in Hermosa Beach, California
Measurable snow is rare here: only 0 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Torrance Airport, CA, 5.6 miles away, so there is no typical first-snow date to plan around.
Where these figures come from
ZIP 90254 is 3 miles from Redondo Beach, CA, which stands at 142 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 4 other ZIP codes share the station; its figures are presented in full for 90503 (Torrance). The 2023 USDA Plant Hardiness Zone Map lists ZIP 90254 in zone 11a, the band where the coldest night of the year averaged 40 to 45°F (4.4 to 7.2°C) over 1991–2020; a zone describes winter lows, not frost dates.
Frost dates across California →
Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.
Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.