ZIP code · Bryn Mawr · California · United States

ZIP code 92318 — Bryn Mawr

ZIP code 92318 serves Bryn Mawr, California.

Postal code: 92318
Single source Value from one source, not cross-checked.
City: Bryn Mawr
County: San Bernardino
State: California
Country: United States
Coordinates: 34.0483, -117.2309 — precision precise (locality)
View on OpenStreetMap
Time zone: America/Los_Angeles (UTC−8 / UTC−7 DST)
Area codes: 909, 840 (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 92318 with another ZIP · ZIPs within 25 miles · distance from 92318

Climate — monthly normals

Warmest month Aug (avg high 96°F), coldest Dec (avg low 40°F).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high °F	67	67	71	76	80	89	95	96	92	83	75	67
Avg low °F	41	42	45	48	52	56	63	63	60	53	45	40
Precip in	2.8	3.0	2.0	0.9	0.3	0.1	0.1	0.1	0.1	0.5	0.9	2.0

NOAA 1991–2020 climate normals from the nearest station: REDLANDS (2.2 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. Data generated on 2026-08-21. Methodology · Report an error on this page