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 very-high
Design category D
Very high seismic hazard — at or near a major active fault. Very strong ground shaking is likely and the most stringent seismic-design provisions apply. A site-specific ground-motion study is typically required. The ASCE 7 Seismic Design Category here is D. (Short-period design value Ss ≈ 1.568 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
77.4° in September, 42.6° in December
Thirty-year averages, not a forecast. Any individual year can differ substantially.
| Month | High | Low | Rain | Snow |
|---|---|---|---|---|
| Jan | 58.1° | 42.8° | 2.77" | 0" |
| Feb | 61.2° | 45.5° | 2.82" | 0" |
| Mar | 64.5° | 47.7° | 2.17" | 0" |
| Apr | 67.1° | 49.8° | 1.07" | 0" |
| May | 70.6° | 53.4° | 0.47" | 0" |
| Jun | 75° | 56.1° | 0.17" | 0" |
| Jul | 77° | 57.6° | 0" | 0" |
| Aug | 77.3° | 58.2° | 0.02" | 0" |
| Sep | 77.4° | 57.5° | 0.09" | 0" |
| Oct | 73.4° | 53.8° | 0.65" | 0" |
| Nov | 64.8° | 47.3° | 1.38" | 0" |
| Dec | 58.4° | 42.6° | 2.76" | 0" |
NOAA/NCEI 1991–2020 U.S. Climate Normals — station NEWARK, CA US, 0.7 mi away.
Growing season zone 10a
365 frost-free days
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.