ZIP code · Fort Greely · Alaska · United States
ZIP code 99731 — Fort Greely
ZIP code 99731 serves Fort Greely, Alaska.
- Postal code
- 99731Single source Value from one source, not cross-checked.
- City
- Fort Greely
- County
- Southeast Fairbanks Census Area
- State
- Alaska
- Country
- United States
- Coordinates
- 63.9520, -146.4510 — precision estimated (postal-area centroid)
View on OpenStreetMap - USDA hardiness zone
- 2a (-50 to -45 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Area code
- 907Telephone 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 99731 with another ZIP · ZIPs within 25 miles · distance from 99731
Nearby localities
Climate — monthly normals
Warmest month Jul (avg high 74°F), coldest Jan (avg low -11°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 6 | 16 | 27 | 48 | 63 | 73 | 74 | 67 | 56 | 34 | 15 | 10 |
| Avg low °F | -11 | -4 | 1 | 21 | 34 | 45 | 49 | 44 | 35 | 18 | -1 | -8 |
| Precip in | 0.4 | 0.3 | 0.3 | 0.2 | 0.8 | 2.5 | 2.8 | 2.1 | 1.2 | 0.8 | 0.7 | 0.5 |
NOAA 1991–2020 climate normals from the nearest station: WHITESTONE FARMS (22.0 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