ZIP code · Merna · Illinois · United States
ZIP code 61758 — Merna
ZIP code 61758 serves Merna, Illinois.
- Postal code
- 61758Single source Value from one source, not cross-checked.
- City
- Merna
- County
- McLean
- State
- Illinois
- Country
- United States
- Coordinates
- 40.5167, -88.8259 — 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/Chicago (UTC−6 / UTC−5 DST)
- Area code
- 309 (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 61758 with another ZIP · ZIPs within 25 miles · distance from 61758
Climate — monthly normals
Warmest month Jul (avg high 86°F), coldest Jan (avg low 16°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 33 | 38 | 50 | 63 | 74 | 83 | 86 | 84 | 79 | 66 | 50 | 38 |
| Avg low °F | 16 | 19 | 28 | 38 | 50 | 60 | 63 | 61 | 53 | 42 | 31 | 21 |
| Precip in | 2.4 | 2.0 | 2.6 | 3.7 | 4.8 | 4.1 | 4.1 | 3.8 | 3.2 | 3.5 | 2.8 | 2.3 |
NOAA 1991–2020 climate normals from the nearest station: NORMAL 4NE (6.9 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