Decorah climate
Snowy winters and freezing nights call for a serious home comfort plan
Decorah normals show a 48.5 degree Fahrenheit annual mean, 37.61 inches of precipitation, 37.5 inches of snow, 12.2 days at or above 90 degrees, and 153.1 nights at or below freezing. January averages 27.7 and July 84.4.
Inspect heating, insulation, windows, roof, gutters, snow storage, sidewalks, drainage, backup power, summer shade, and the route to care during snow, ice, or heat.
Living through the seasons
Summers are the easier season. Winter comfort deserves a closer look.
- Overall Comfort
- Good
2.6 / 5
- Average Summer High
- 80°F
- Days Above 90°F
- 6 days/year
- Summer Feel
- Excellent
Mild · 80°F
Excellent
4.8 / 5
- Average Winter Low
- 11°F / -12°C
- Days Below Freezing
- 161 days/year
- Winter Feel
- Poor
Poor
Poor
1 / 5
The shape of the year
Humidity, comfortable months, and sunshine show how the seasons differ.
- Humidity
- 79%
- Comfortable Months
- 5 months
- Solar Exposure
- 1413 peak sun hrs/yr
Poor
Fair
Poor
Air, allergies, and weather
Air quality and allergies shape day to day comfort. The best months and weather risks help with timing.
Air and allergies
- Air Quality
- Excellent
- Allergy Levels
- Poor
4.7 / 5
Current AQI
Checking…
Current PM2.5
Checking…
Timing and weather
- Long Term Fine Particle Pollution
- 5.7 µg/m³ 2021-2025 modeled average
- Best Months
- May, Jun, Jul, Aug, Sep
- Toughest Months
- Feb, Jan, Dec
- Heat Risk
- Low
- Drought Risk
- Moderate
- Weather Volatility
- Moderate
Good · 5.7 µg/m³ 2021-2025 modeled average
Very Good
3.3 / 5
Decorah in everyday life
Could Decorah work for you?
What may work well
- The local station provides temperature, rain, snow, heat, and freeze guidance.
- Decorah has heritage, library, park, trail, and indoor choices.
What to think about
- Snow, freezing nights, heating, ice, power, and winter transport require attention.
- Warm summer days still affect shade, cooling, and outdoor timing.
Choose Decorah for the whole year
Inspect heating
Review HVAC, insulation, windows, roof, filters, pipes, snow, and power.
Price winter resilience
Ask about snow removal, roof, drainage, ice, sidewalks, vehicles, insurance, and safe routes.
Keep indoor choices
Pair Vesterheim, library, programs, parks, trails, meals, and home activities during snow or heat.
Questions retirees ask
Does Decorah have cold winters?
The local normals show 37.5 inches of snow and 153.1 nights at or below freezing. Heating, snow removal, ice, roof, power, and care routes matter.
What should I inspect before buying?
Review heating, insulation, windows, roof, gutters, snow storage, sidewalks, drainage, backup power, summer shade, and the route to care.
Decorah's climate choice depends on heating, snow and ice planning, power, indoor options, summer shade, and routes that remain manageable through northeast Iowa seasons.
Sources
Climate comfort helps estimate how practical daily life may feel across the year, especially for heat, humidity, cold, and seasonal constraints.
Seasonal timing, health conditions, air conditioning, air quality, and elevation can change the lived experience.
- NASA POWER
Used for Overall Comfort, Summer Feel, Average Summer High, Days Above 90°F, Winter Feel, Average Winter Low, Days Below Freezing, Humidity, Comfortable Months, Solar Exposure, Best Months, Toughest Months, Allergy Levels, Heat Risk, Weather Volatility
- Open-Meteo / Copernicus CAMS
Used for Air Quality, Long-Term Fine-Particle Pollution
Checked 2026-05-18
- Federal Emergency Management Agency National Risk Index
Used for Drought Risk
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Partner with Retirement ListsResearch and writing byGrant Gibson
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