Marengo County Climate
Marengo County, Alabama
Avg Annual Temp
64.2°F
Annual Precip
56.2"
Annual Snowfall
0.2"
Extreme Heat Days
74.4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
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 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.