ZIP code · Portland · Maine · United States
ZIP code 04122 — Portland
ZIP code 04122 serves Portland, Maine.
- Postal code
- 04122Single source Value from one source, not cross-checked.
- City
- Portland
- County
- Cumberland
- State
- Maine
- Country
- United States
- Coordinates
- 43.6615, -70.2553 — 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/New_York (UTC−5 / UTC−4 DST)
- Area code
- 207Telephone 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 04122 with another ZIP · ZIPs within 25 miles · distance from 04122
Climate — monthly normals
Warmest month Jul (avg high 80°F), coldest Jan (avg low 16°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 32 | 35 | 42 | 54 | 64 | 74 | 80 | 79 | 71 | 60 | 48 | 38 |
| Avg low °F | 16 | 17 | 26 | 35 | 46 | 55 | 61 | 60 | 52 | 41 | 32 | 22 |
| Precip in | 3.5 | 3.5 | 4.1 | 4.4 | 3.7 | 4.2 | 3.4 | 3.6 | 3.8 | 5.3 | 4.3 | 4.5 |
NOAA 1991–2020 climate normals from the nearest station: PORTLAND INTL JETPORT (2.4 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