Harrisburg

What is the climate like in Harrisburg?

The best time to visit Harrisburg is typically August – October, with trip comfort peaking in September (7.3/10). Harrisburg is warmest in July, when daily highs average 89°F (31°C), and coolest in January, when lows fall to about 29°F (-1°C). The wettest month is typically April and the driest is September; the year sees roughly 49 in (1251 mm) of precipitation.

• Best time to visitAugust – October — comfort peaks in September (7.3/10)
• Warmest monthJuly — average high 89°F (31°C)
• Coolest monthJanuary — average low 29°F (-1°C)
• Wettest monthApril (5.5 in (140 mm))
• Driest monthSeptember (2.9 in (73 mm))
• Annual precipitation49 in (1251 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromHarrisburg, 2 km away (1898-2026)