ZIP code · Hamlin · Pennsylvania · United States

ZIP code 18427 — Hamlin

ZIP code 18427 serves Hamlin, Pennsylvania.

Postal code: 18427
Single source Value from one source, not cross-checked.
City: Hamlin
County: Wayne
State: Pennsylvania
Country: United States
Coordinates: 41.4047, -75.4069 — precision precise (locality)
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Time zone: America/New_York (UTC−5 / UTC−4 DST)
Area codes: 272, 570
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 18427 with another ZIP · ZIPs within 25 miles · distance from 18427

Climate — monthly normals

Warmest month Jul (avg high 81°F), coldest Jan (avg low 14°F).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high °F	33	36	45	58	69	77	81	79	73	61	49	38
Avg low °F	14	14	22	32	43	53	57	55	48	36	27	20
Precip in	3.2	2.7	3.5	3.7	3.6	4.7	4.0	4.1	4.3	4.4	3.2	3.6

NOAA 1991–2020 climate normals from the nearest station: HAWLEY 1 E (13.5 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