ZIP code · San Marino · California · United States
ZIP code 91118 — San Marino
ZIP code 91118 serves San Marino, California.
- Postal code
- 91118Single source Value from one source, not cross-checked.
- City
- San Marino
- County
- Los Angeles
- State
- California
- Country
- United States
- Coordinates
- 34.1214, -118.1065 — 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
- 626 (from the nearest rate centre)Telephone 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 91118 with another ZIP · ZIPs within 25 miles · distance from 91118
Climate — monthly normals
Warmest month Aug (avg high 88°F), coldest Dec (avg low 45°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 69 | 68 | 71 | 74 | 76 | 81 | 86 | 88 | 87 | 81 | 74 | 68 |
| Avg low °F | 46 | 47 | 51 | 53 | 58 | 62 | 65 | 66 | 64 | 57 | 51 | 45 |
| Precip in | 3.6 | 4.2 | 2.5 | 0.6 | 0.5 | 0.1 | 0.0 | 0.0 | 0.1 | 0.6 | 0.9 | 2.4 |
NOAA 1991–2020 climate normals from the nearest station: SAN GABRIEL FIRE DEPT (2.6 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