Lake Hopatcong

What is the climate like in Lake Hopatcong?

The best time to visit Lake Hopatcong is typically June, the year's most comfortable month (6.6/10). Lake Hopatcong is warmest in July, when daily highs average 85°F (29°C), and coolest in January, when lows fall to about 25°F (-4°C). The wettest month is typically July and the driest is November; the year sees roughly 50 in (1267 mm) of precipitation.

• Best time to visitJune — the year's comfort peak (6.6/10)
• Warmest monthJuly — average high 85°F (29°C)
• Coolest monthJanuary — average low 25°F (-4°C)
• Wettest monthJuly (5.1 in (130 mm))
• Driest monthNovember (3.3 in (85 mm))
• Annual precipitation50 in (1267 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromCharlotteburg Rsvr, 18 km away (1893-2026)