Climate almanac
Johnsburg
Illinois, US · 42.38°, -88.24°
What is the climate like in Johnsburg?
The best time to visit Johnsburg is typically June – September, with trip comfort peaking in September (6.9/10). Johnsburg is warmest in July, when daily highs average 83°F (28°C), and coolest in January, when lows fall to about 19°F (-7°C). The wettest month is typically May and the driest is February; the year sees roughly 38 in of precipitation.
- Best time to visitJune – September — comfort peaks in September (6.9/10)
- Warmest monthJuly — average high 83°F (28°C)
- Coolest monthJanuary — average low 19°F (-7°C)
- Wettest monthMay (4.7 in)
- Driest monthFebruary (1.9 in)
- Annual precipitation38 in