Marengo County Climate
Marengo County, Alabama
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
64.2°F
Annual Precip
56.2"
Annual Snowfall
0.2"
Extreme Heat Days
74
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
5,813
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Marengo County
Climate Verdict
Marengo County has a warm, averaging 64.2°F year-round, very wet conditions receiving 56.2 inches of precipitation annually, significant summer heat with 74.4 days annually above 90°F, light snow averaging 0.2 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 45.3°F. summers are hot, with July averaging 81.4°F. The 36°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.
Regional Context
Marengo County closely matches the Alabama statewide average temperature of 63.2°F.
Climate Profile
About Marengo County Weather
Significant heat in the South
Marengo County averages 64.2°F annually, which is well above the national median temperature. It experiences a wet humid subtropical climate with 56.2 inches of rain.
Warmer than the state average
The county is 1 degree warmer than the Alabama average of 63.2°F. Its 56.2 inches of annual precipitation is nearly identical to the state's typical rainfall.
The heat leader of the region
Marengo records 74 extreme heat days per year, significantly more than Madison's 55. It is also 3 degrees warmer on average than Marion County to its north.
Intense summers and short winters
July averages a sweltering 81.4°F, contributing to 74 days of 90°F+ heat annually. Winters are very mild at 47.3°F with almost no snow at all.
Prepare for relentless summer heat
High-efficiency cooling is critical here given the 74 days of extreme heat. With 56.2 inches of rain and high humidity, moisture barriers are essential for home maintenance.
Frequently Asked Questions
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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. 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.