ZIP code · Fontana · California · United States

ZIP code 92334 — Fontana

ZIP code 92334 serves Fontana, California.

Postal code: 92334
Single source Value from one source, not cross-checked.
City: Fontana
County: San Bernardino
State: California
Country: United States
Coordinates: 34.0922, -117.4350 — 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 codes: 909, 840
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 92334 with another ZIP · ZIPs within 25 miles · distance from 92334

Climate — monthly normals

Warmest month Aug (avg high 97°F), coldest Dec (avg low 43°F).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high °F	70	70	72	75	80	87	94	97	93	82	76	69
Avg low °F	44	45	47	50	55	58	63	64	61	55	47	43
Precip in	2.1	2.5	1.5	0.6	0.3	0.1	0.0	0.0	0.2	0.4	0.7	1.5

NOAA 1991–2020 climate normals from the nearest station: RIVERSIDE CITRUS EXP (9.6 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