ZIP code · Smithfield · Virginia · United States
ZIP code 23431 — Smithfield
ZIP code 23431 serves Smithfield, Virginia.
- Postal code
- 23431Single source Value from one source, not cross-checked.
- City
- Smithfield
- County
- Isle of Wight
- State
- Virginia
- Country
- United States
- Coordinates
- 36.8989, -76.6877 — precision precise (locality)
View on OpenStreetMap - USDA hardiness zone
- 8a (10 to 15 °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)
Tools: compare 23431 with another ZIP · ZIPs within 25 miles · distance from 23431
Climate — monthly normals
Warmest month Jul (avg high 87°F), coldest Jan (avg low 31°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 49 | 52 | 59 | 69 | 76 | 83 | 87 | 85 | 80 | 71 | 61 | 53 |
| Avg low °F | 31 | 33 | 39 | 48 | 57 | 65 | 70 | 69 | 63 | 52 | 41 | 35 |
| Precip in | 3.7 | 3.0 | 4.1 | 3.6 | 4.0 | 4.7 | 5.7 | 5.8 | 5.8 | 4.3 | 3.6 | 3.7 |
NOAA 1991–2020 climate normals from the nearest station: SUFFOLK LAKE KILBY (12.6 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