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 ≈ 1.815 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
94.9° in August, 37.1° in December
Thirty-year averages, not a forecast. Any individual year can differ substantially.
| Month | High | Low | Rain |
|---|---|---|---|
| Jan | 65.8° | 37.4° | 2.05" |
| Feb | 66.3° | 37.6° | 2.43" |
| Mar | 70.8° | 40.2° | 1.51" |
| Apr | 73.9° | 44.2° | 0.76" |
| May | 79.9° | 50.8° | 0.27" |
| Jun | 87.2° | 55.6° | 0.07" |
| Jul | 94.1° | 61.6° | 0.13" |
| Aug | 94.9° | 61.7° | 0.36" |
| Sep | 91.5° | 58.7° | 0.16" |
| Oct | 81.9° | 49.1° | 0.47" |
| Nov | 72.3° | 40.7° | 0.67" |
| Dec | 64.8° | 37.1° | 1.77" |
This station records temperature and precipitation but not snowfall, so no snow column is shown. That is missing data, not a report of zero snow — Moreno Valley may well get plenty.
NOAA/NCEI 1991–2020 U.S. Climate Normals — station MARCH AFB, CA US, 1.6 mi away.
Growing season zone 9b
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.