Chickasaw County Climate
Chickasaw County, Iowa
Avg Annual Temp
44.7°F
Annual Precip
38.8"
Annual Snowfall
37.1"
Extreme Heat Days
8.4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Chickasaw County Weather
Chickasaw County ranks among the cooler U.S. regions
With an annual average temperature of 44.7°F, Chickasaw County is significantly colder than the national average. This humid continental area experiences deep seasonal shifts and consistent annual moisture.
One of Iowa's cooler northern counties
The county's 44.7°F average temperature is 3.3 degrees lower than the state average of 48.0°F. It is also wetter than the state norm, receiving 38.8 inches of precipitation compared to the 36.1-inch average.
Higher precipitation than western Iowa neighbors
Chickasaw receives 38.8 inches of annual precipitation, making it wetter than neighbors like Cherokee or Clay. Despite the moisture, it sees only 8 extreme heat days per year, reflecting a milder summer profile than other parts of the state.
Mild summers paired with frigid winter lows
The July average stays relatively cool at 70.5°F, and heat waves are rare. However, January is punishing with an average of 14.4°F, contributing to a total annual snowfall of 37.1 inches.
Heavy winter gear is a Chickasaw necessity
Winter weather dominates planning, as temperatures average only 18.0°F during the December-to-February stretch. Residents should invest in high-quality home insulation and reliable snow removal tools to handle the 37.1 inches of snow.
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.