Coldest Town in New Jersey: Walpack Center (Sussex County)

Walpack Center (Walpack Township, Sussex County) holds the title.

• Average annual temperature: 43.5°F (6.4°C)
• Average annual snowfall: 36.4 inches (92 cm)
• Elevation: ~1,000 ft (300 m) — Appalachian Mountains (Kittatinny Valley)
• Microclimate: Cold-air drainage (radiation cooling) into valley floor; minimal urban heat island
• Record low: -20°F (-29°C) range

Other Cold Spots

• High Point Monument (1,803 ft / 550 m) — highest elevation, colder extremes
• Sussex, Newton, Vernon — similar valley/mountain temps
• Coastal/Urban (Atlantic City, Newark): 5–10°F warmer winters

Note: Walpack is tiny (<20 residents), mostly within Delaware Water Gap NRA. It's a weather station location, not a population center.