Climate

One word that could be used to describe the climate in Granite City is balanced. Whether it be our spectacular spring (which usually arrives around mid-March) or our fantastic fall seasons, Granite City and the St. Louis region's climate is one that is generally void of extreme weather conditions. NOAA's National Weather Service Weather Forecast Office has some information regarding the climatology of St. Louis and the Bi-State Area.

Average Monthly Temperature

Temperature
Source: The National Weather Service

Average Winter Temperature: 33.7 degrees
Average Summer Temperature: 77.5 degrees

Average Monthly Rainfall

Rainfall
Source: The National Weather Service

Average Monthly Snowfall

Snowfall
Source: The National Weather Service

Average Annual Rainfall: 37.26"±
Average Annual Snowfall: 18.5"±