Howard County Climate
Howard County, Iowa
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
45.0°F
Annual Precip
38.0"
Annual Snowfall
40.3"
Extreme Heat Days
8
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
4b
Minimum winter temperature range for plant survival
2,568
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Howard County
Climate Verdict
Howard County has a cool, averaging 45.0°F annually, moderate rainfall of 38.0 inches per year, rare extreme heat with only 7.9 days above 90°F annually, moderate snowfall of 40.3 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 14.9°F. summers are warm — July averages 71.4°F. Residents experience a substantial 57°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Howard County is 3.0°F cooler than the Iowa statewide average of 48.0°F.
Climate Profile
About Howard County Weather
A Frigid Northern Frontier
Howard County’s 45.0°F annual average temperature is one of the lowest in the region, firmly establishing a cold humid continental climate. This is significantly cooler than the national median and reflects its position near the Minnesota border.
Coldest in the State
With an annual average of 45.0°F, Howard County is a full three degrees colder than the Iowa state average of 48.0°F. It also experiences higher than average precipitation, receiving 38.0 inches annually.
Lower Temps than Western Neighbors
Howard is notably colder than Humboldt County, which averages 46.2°F. It also receives much more snow than neighboring counties, topping the list with 40.3 inches per year.
Heavy Snow and Bracing Winters
Winters are harsh, featuring a January average of 14.9°F and over 40 inches of snow. Summers are very brief and mild, with only 8 days reaching 90°F and a July average of 71.4°F.
Winterize for the Long Haul
Residents must prioritize high-grade home insulation and reliable snow blowers to handle the 40.3 inches of annual snow. Heating costs will be a major budget item given the 18.3°F winter average.
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.