Gallatin County Climate
Gallatin County, Illinois
Climate data coming soon
Avg Annual Temp
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Annual Precip
47.1"
Annual Snowfall
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Extreme Heat Days
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Monthly Temperature
Temperature data coming soon
Precipitation Calendar
Seasonal Overview
Seasonal data coming soon
National Comparison
Data pending
Data pending
Climate Profile
About Gallatin County Weather
A High-Precipitation River Region
While temperature data is limited for this area, Gallatin County is defined by its high annual precipitation of 47.1 inches. This exceeds the national average for rainfall significantly.
One of the Wettest Counties
Gallatin's 47.1 inches of annual precipitation is far above the Illinois state average of 41.7 inches. It represents the damp, lush climate of the state's southeastern border.
Southeastern Illinois Moisture Profile
The county shares a similar rainfall pattern with neighboring Hamilton County, both receiving over 47 inches of rain. This makes it part of the wettest region in the state.
Heavy Rains and Moderate Winters
Specific seasonal temperatures are not recorded, but the high annual rainfall suggests frequent storm activity. The region typically follows the southern Illinois pattern of mild winters and humid summers.
Prioritize Water Management
Residents should focus on flood mitigation and high-capacity gutter systems given the 47.1 inches of annual rain. Humidity control is also essential for maintaining homes in this moist environment.
Frequently Asked Questions
How much rain does Gallatin County get?
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.