ZIP code · Hamilton · Ohio · United States

ZIP code 45012 — Hamilton

ZIP code 45012 serves Hamilton, Ohio.

Postal code: 45012
Single source Value from one source, not cross-checked.
City: Hamilton
County: Butler
State: Ohio
Country: United States
Coordinates: 39.4410, -84.5757 — precision precise (locality)
View on OpenStreetMap
USDA hardiness zone: 6b (-5 to 0 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone: America/New_York (UTC−5 / UTC−4 DST)
Area codes: 513, 283
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 45012 with another ZIP · ZIPs within 25 miles · distance from 45012

Climate — monthly normals

Warmest month Jul (avg high 87°F), coldest Jan (avg low 22°F).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high °F	40	44	54	67	75	83	87	86	80	68	55	44
Avg low °F	22	23	32	42	52	61	64	62	54	42	32	26
Precip in	2.9	2.4	3.5	4.6	4.6	4.1	3.7	3.0	3.0	3.2	3.2	3.3

NOAA 1991–2020 climate normals from the nearest station: HAMILTON BUTLER CO RGNL AP (6.0 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