Flood zone: it depends on the exact parcel
There is no such thing as a flood zone for a whole city. Two houses on the same street can sit in different zones, and it is the single fact here that changes most over a short distance. So this page does not guess one.
Earthquake hazard high
Design category D
High seismic hazard. Strong ground shaking is expected over the life of a building. Substantial seismic-resistant design, detailing, and inspection are required by code. The ASCE 7 Seismic Design Category here is D. (Short-period design value Ss ≈ 1.391 g — the standard headline measure of ground-shaking hazard.)
USGS Seismic Design Web Services (ASCE 7), assuming Site Class D — stiff or unknown soil. Real soil conditions can move the category either way.
Typical weather
74.1° in September, 49.8° in December
Thirty-year averages, not a forecast. Any individual year can differ substantially.
| Month | High | Low | Rain | Snow |
|---|---|---|---|---|
| Jan | 64.5° | 50.4° | 2.2" | 0" |
| Feb | 63.3° | 51° | 2.38" | 0" |
| Mar | 64.7° | 53.1° | 1.34" | 0" |
| Apr | 65.9° | 55.1° | 0.55" | 0" |
| May | 66.7° | 58.3° | 0.18" | 0" |
| Jun | 68.4° | 61.5° | 0.07" | 0" |
| Jul | 71.8° | 64.6° | 0.02" | 0" |
| Aug | 73.3° | 65.5° | 0" | 0" |
| Sep | 74.1° | 64.1° | 0.1" | 0" |
| Oct | 72.7° | 60.2° | 0.33" | 0" |
| Nov | 68.4° | 54.5° | 0.64" | 0" |
| Dec | 64.1° | 49.8° | 1.62" | 0" |
NOAA/NCEI 1991–2020 U.S. Climate Normals — station NEWPORT BEACH HARBOR, CA US, 9.1 mi away.
Growing season zone 10b
365 frost-free days
Heads up: the nearest station with a full 30-year record is TUSTIN IRVINE RCH, CA US, about 15 miles from here. Treat these as regional rather than local — terrain, elevation and water can change a lot in that distance.
Last spring frost around n/a, first fall frost around n/a. Roughly half of years see frost outside that window.
2023 USDA Plant Hardiness Zone Map and NOAA/NCEI 1991–2020 frost normals.
What this page does not tell you
- Nothing about a specific property — only the area around it.
- No flood zone, deliberately: that is parcel-level and this page would have to guess.
- Nothing about wildfire, radon, subsidence, soil or the building itself.
- Climate normals describe a typical year, not the year you are about to have.