Granite City

What is the climate like in Granite City?

The best time to visit Granite City is typically September – October, with trip comfort peaking in September (7.2/10). Granite City is warmest in July, when daily highs average 88°F (31°C), and coolest in January, when lows fall to about 26°F (-3°C). The wettest month is typically April and the driest is December; the year sees roughly 45 in of precipitation.

• Best time to visitSeptember – October — comfort peaks in September (7.2/10)
• Warmest monthJuly — average high 88°F (31°C)
• Coolest monthJanuary — average low 26°F (-3°C)
• Wettest monthApril (5.1 in)
• Driest monthDecember (2.4 in)
• Annual precipitation45 in