ZIP code · Reading · Pennsylvania · United States

ZIP code 19603 — Reading

ZIP code 19603 serves Reading, Pennsylvania.

Postal code: 19603
Single source Value from one source, not cross-checked.
City: Reading
County: Berks
State: Pennsylvania
Country: United States
Coordinates: 40.3884, -75.9631 — precision precise (locality)
View on OpenStreetMap
USDA hardiness zone: 7a (0 to 5 °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: 610, 484, 835
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 19603 with another ZIP · ZIPs within 25 miles · distance from 19603

Climate — monthly normals

Warmest month Jul (avg high 87°F), coldest Jan (avg low 23°F).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high °F	39	42	51	63	74	82	87	84	77	65	54	43
Avg low °F	23	24	32	42	52	61	66	64	57	45	35	28
Precip in	3.0	2.6	3.5	3.4	3.5	4.8	4.8	4.5	4.9	3.8	3.0	3.5

NOAA 1991–2020 climate normals from the nearest station: READING SPAATZ FLD (1.5 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 · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page