ZIP code · Southwest · Pennsylvania · United States
ZIP code 15685 — Southwest
ZIP code 15685 serves Southwest, Pennsylvania.
- Postal code
- 15685Single source Value from one source, not cross-checked.
- City
- Southwest
- County
- Westmoreland
- State
- Pennsylvania
- Country
- United States
- Coordinates
- 40.3602, -79.4398 — precision precise (locality)
View on OpenStreetMap - Time zone
- America/New_York (UTC−5 / UTC−4 DST)
- Area code
- 724 (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 15685 with another ZIP · ZIPs within 25 miles · distance from 15685
Climate — monthly normals
Warmest month Jul (avg high 83°F), coldest Jan (avg low 19°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 37 | 40 | 49 | 62 | 72 | 80 | 83 | 82 | 76 | 64 | 52 | 41 |
| Avg low °F | 19 | 20 | 27 | 36 | 46 | 55 | 59 | 58 | 51 | 40 | 30 | 24 |
| Precip in | 3.1 | 2.5 | 3.3 | 3.8 | 4.0 | 4.1 | 4.3 | 4.6 | 4.0 | 2.9 | 3.3 | 3.6 |
NOAA 1991–2020 climate normals from the nearest station: LOYALHANNA LAKE (6.8 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