ZIP code · Jamestown · Michigan · United States
ZIP code 49427 — Jamestown
ZIP code 49427 serves Jamestown, Michigan.
- Postal code
- 49427Single source Value from one source, not cross-checked.
- City
- Jamestown
- County
- Ottawa
- State
- Michigan
- Country
- United States
- Coordinates
- 42.8267, -85.8444 — precision precise (locality)
View on OpenStreetMap - USDA hardiness zone
- 6a (-10 to -5 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Detroit (UTC−5 / UTC−4 DST)
- Area code
- 616Telephone 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 49427 with another ZIP · ZIPs within 25 miles · distance from 49427
Climate — monthly normals
Warmest month Jul (avg high 82°F), coldest Jan (avg low 20°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 32 | 34 | 44 | 57 | 69 | 78 | 82 | 80 | 74 | 61 | 48 | 37 |
| Avg low °F | 20 | 21 | 28 | 37 | 48 | 58 | 62 | 60 | 52 | 43 | 34 | 26 |
| Precip in | 1.9 | 1.8 | 2.1 | 3.5 | 3.8 | 3.5 | 2.8 | 3.1 | 3.0 | 4.2 | 3.2 | 2.1 |
NOAA 1991–2020 climate normals from the nearest station: HOLLAND TULIP CITY AP (14.0 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