Gallatin County Climate
Gallatin County, Illinois
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
58.2°F
Annual Precip
47.1"
Annual Snowfall
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Extreme Heat Days
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Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7a
Minimum winter temperature range for plant survival
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Gallatin County
Climate Verdict
Climate data for Gallatin County is currently being compiled from NOAA sources. Check back soon for detailed weather normals.
Seasonal Breakdown
Seasonal weather data for this county is based on regional climate patterns. Residents experience typical weather variations for their location, with conditions reflecting broader state and regional trends. Consult the NOAA Climate Data Online for detailed seasonal breakdowns as more granular station data becomes available.
Outdoor & Gardening Guidance
Growing season and gardening guidance for Gallatin County will be added as data becomes available.
Regional Context
Comparative climate data for Gallatin County is being processed.
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
What is the average temperature in Gallatin County?
How much rain does Gallatin County get?
How hot does Gallatin County get in summer?
How cold are winters in Gallatin County?
Track your own weather in Gallatin County
Ambient Weather personal weather stations give you hyperlocal climate data.
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Data sources: ERA5 Reanalysis (modeled) via Open-Meteo (gap-filled where station data unavailable).. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.