ZIP code · Malmstrom Afb · Montana · United States
ZIP code 59402 — Malmstrom Afb
ZIP code 59402 serves Malmstrom Afb, Montana.
- Postal code
- 59402Single source Value from one source, not cross-checked.
- City
- Malmstrom Afb
- County
- Cascade
- State
- Montana
- Country
- United States
- Coordinates
- 47.5002, -111.3008 — precision estimated (postal-area centroid)
View on OpenStreetMap - Time zone
- America/Denver (UTC−7 / UTC−6 DST)
- Area code
- 406 (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 59402 with another ZIP · ZIPs within 25 miles · distance from 59402
Climate — monthly normals
Warmest month Jul (avg high 86°F), coldest Jan (avg low 18°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 37 | 39 | 48 | 58 | 67 | 75 | 86 | 84 | 73 | 59 | 45 | 37 |
| Avg low °F | 18 | 19 | 25 | 33 | 42 | 50 | 55 | 53 | 45 | 36 | 26 | 20 |
| Precip in | 0.6 | 0.6 | 0.6 | 1.8 | 2.7 | 2.7 | 1.3 | 1.3 | 1.4 | 1.1 | 0.7 | 0.6 |
NOAA 1991–2020 climate normals from the nearest station: GREAT FALLS 16ST (1.3 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