ZIP code · Williston · North Dakota · United States
ZIP code 58803 — Williston
ZIP code 58803 serves Williston, North Dakota.
- Postal code
- 58803Single source Value from one source, not cross-checked.
- City
- Williston
- County
- Williams
- State
- North Dakota
- Country
- United States
- Coordinates
- 48.1468, -103.6199
View on OpenStreetMap - USDA hardiness zone
- 4a (-30 to -25 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
- Area code
- 701Telephone 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 58803 with another ZIP · ZIPs within 25 miles · distance from 58803
Climate — monthly normals
Warmest month Jul (avg high 85°F), coldest Jan (avg low 1°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 22 | 27 | 40 | 56 | 67 | 77 | 85 | 84 | 73 | 56 | 38 | 26 |
| Avg low °F | 1 | 6 | 18 | 29 | 40 | 50 | 56 | 54 | 44 | 30 | 17 | 6 |
| Precip in | 0.6 | 0.5 | 0.6 | 1.1 | 2.1 | 2.6 | 2.5 | 1.6 | 1.4 | 0.9 | 0.7 | 0.6 |
NOAA 1991–2020 climate normals from the nearest station: WILLISTON SLOULIN INTL AP (2.1 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