USDA Hardiness Zone 10b
Frost Dates for 90813 — Long Beach, California
NOAA 1991–2020 normals from Long Beach Daugherty Field, CA (31 ft), 3 miles northeast.
Updated
Frost is not a yearly event in Long Beach: a night at or below 32°F came in 1% of the winters of 1991–2020 at Long Beach Daugherty Field, CA, and a 36°F night, cold enough for frost on exposed leaves, in 40%. There is no reliable "last frost date" here; most years have none.
- Winters with a freeze
- 1%
- Winters with 36°F
- 40%
- Coldest month low
- 47°F
- Hardiness zone
- 10b
32°F or below, 1991–2020
frost possible on leaves
average, December
35 to 40°F (1.7 to 4.4°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 Long Beach
At Long Beach Daugherty Field, CA, 3 miles northeast of Long Beach, 1% of the winters of 1991–2020 had at least one night at or below 32°F, and none reached 28°F. Even a 36°F night came in only 40% of winters. January is the month most likely to bring one: a 1% chance in a given year. 62 of the 283 other California stations behind this site's ZIP pages freeze in fewer than half of winters too.
Freeze probabilities 1991–2020 at Long Beach Daugherty Field, 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 90813 →Compare Long Beach with another place →
Weather by month in Long Beach
August is the warmest month at Long Beach Daugherty Field, CA, averaging 83°F by day and 66°F at night; December is the coldest at 67°F and 47°F. Every month stays under a 10% chance of a 32°F night; January is the likeliest at 1%.
Warmth for growing adds up to 5,476 growing degree days a year (base 50°F), more than at 79% of the 283 California stations. 40% of them (2,169) have built up by the end of June, and August adds the most, 755. Precipitation totals 12.3 inches a year, most in February (3.0") and least in August (0.0"); May to September bring 5% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 67 | 47 | 2.9 | 1% | <1 | 225 |
| Feb | 67 | 48 | 3.0 | 0% | 0 | 215 |
| Mar | 69 | 51 | 1.7 | 0% | 0 | 308 |
| Apr | 71 | 54 | 0.6 | 0% | 0 | 380 |
| May | 73 | 58 | 0.3 | 0% | 0 | 481 |
| Jun | 76 | 61 | 0.1 | 0% | 0 | 561 |
| Jul | 81 | 65 | 0.1 | 0% | 0 | 718 |
| Aug | 83 | 66 | 0.0 | 0% | 0 | 755 |
| Sep | 82 | 64 | 0.1 | 0% | 0 | 695 |
| Oct | 78 | 59 | 0.5 | 0% | 0 | 570 |
| Nov | 73 | 52 | 0.8 | 0% | 0 | 362 |
| Dec | 67 | 47 | 2.2 | 0% | 0 | 208 |
Monthly normals 1991–2020 at Long Beach Daugherty Field, CA (31 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
Compared with the next station
The nearest other station, Torrance Airport, CA, 9 miles west of Long Beach, has a 32°F night in 11% of winters against 1% here, and a coolest-month low 1°F colder (46°F).
When it snows in Long 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, 8.7 miles away, so there is no typical first-snow date to plan around.
Where these figures come from
ZIP 90813 is 3 miles from Long Beach Daugherty Field, CA, which stands at 31 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 24 other ZIP codes share the station; its figures are presented in full for 90805 (Long Beach). The 2023 USDA Plant Hardiness Zone Map lists ZIP 90813 in zone 10b, the band where the coldest night of the year averaged 35 to 40°F (1.7 to 4.4°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.