ZIP code · La Grande · Washington · United States
ZIP code 98348 — La Grande
ZIP code 98348 serves La Grande, Washington.
- Postal code
- 98348Single source Value from one source, not cross-checked.
- City
- La Grande
- County
- Pierce
- State
- Washington
- Country
- United States
- Coordinates
- 46.8343, -122.3187 — precision precise (locality)
View on OpenStreetMap - USDA hardiness zone
- 8b (15 to 20 °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 code
- 360 (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 98348 with another ZIP · ZIPs within 25 miles · distance from 98348
Climate — monthly normals
Warmest month Aug (avg high 77°F), coldest Dec (avg low 33°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 46 | 48 | 52 | 57 | 64 | 69 | 76 | 77 | 70 | 59 | 50 | 45 |
| Avg low °F | 33 | 33 | 36 | 39 | 45 | 49 | 52 | 53 | 48 | 42 | 36 | 33 |
| Precip in | 6.1 | 4.3 | 4.8 | 3.9 | 3.0 | 2.3 | 0.9 | 0.9 | 1.8 | 4.1 | 7.1 | 6.0 |
NOAA 1991–2020 climate normals from the nearest station: MCMILLIN RSVR (21.1 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