Humboldt County Climate
Humboldt County, Iowa
Avg Annual Temp
46.2°F
Annual Precip
35.0"
Annual Snowfall
—
Extreme Heat Days
6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Humboldt County Weather
Cool Temps and Low Extremes
Humboldt County maintains a cool 46.2°F annual average temperature, placing it well below the national median. This region experiences a traditional continental climate with distinct seasons but few days of extreme summer heat.
Lower Precipitation than State Norms
The county is slightly drier than the Iowa average, seeing 35.0 inches of precipitation compared to the state's 36.1 inches. Its annual temperature of 46.2°F also trails the statewide average by nearly two degrees.
A Middle Ground in Temperature
Humboldt is slightly warmer than Hancock County to the north (45.5°F) but cooler than Hardin County (46.8°F). It enjoys very few extreme heat days, recording only 6 per year compared to Hardin's 13.
Frigid Winters and Gentle Summers
Winter temperatures average a cold 19.8°F, dipping to a January low of 16.4°F. Summers are temperate with a July average of 72.1°F and only 6 days reaching the 90°F mark.
Focus on Winter Efficiency
While local snowfall data is limited, the cold 16.4°F January average suggests a strong need for furnace maintenance. Minimal extreme heat days mean cooling costs are lower here than in much of southern Iowa.
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.