ZIP code · Sierra Madre · California · United States
ZIP code 91025 — Sierra Madre
ZIP code 91025 serves Sierra Madre, California.
- Postal code
- 91025Single source Value from one source, not cross-checked.
- City
- Sierra Madre
- County
- Los Angeles
- State
- California
- Country
- United States
- Coordinates
- 34.1617, -118.0528 — precision precise (locality)
View on OpenStreetMap - USDA hardiness zone
- 10a (30 to 35 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Los_Angeles (UTC−8 / UTC−7 DST)
- Area code
- 626Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 91025 with another ZIP · ZIPs within 25 miles · distance from 91025
Climate — monthly normals
Warmest month Aug (avg high 85°F), coldest Feb (avg low 37°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 56 | 55 | 59 | 63 | 70 | 79 | 85 | 85 | 81 | 72 | 63 | 55 |
| Avg low °F | 38 | 37 | 39 | 42 | 48 | 58 | 64 | 64 | 59 | 51 | 43 | 37 |
| Precip in | 7.7 | 8.3 | 5.1 | 2.0 | 1.1 | 0.2 | 0.2 | 0.0 | 0.3 | 1.3 | 1.9 | 4.0 |
NOAA 1991–2020 climate normals from the nearest station: MT WILSON CBS (4.9 mi) · NOAA NCEI
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page