Des Moines, Iowa climate planning
Des Moines offers a warm summer window and a demanding winter season
The climate ledger lists an 86°F average summer high, 30 days above 90°F, 73 percent humidity, five comfortable months, and 1,508 peak sun hours per year. It also lists a 17°F average winter low, 144 days below freezing, Poor winter feel, Excellent modeled air quality, Poor allergy levels, and 6.3 micrograms per cubic meter fine particles for 2021 through 2025.
May through September are the listed best months, while February, January, and December are toughest. Review cooling, heating, ice, snow, allergies, filters, indoor air, storm preparation, drought, water, power, mobility, and the route to care before treating a seasonal preference as a home fit.
Living through the seasons
Summers are the easier season. Winter comfort deserves a closer look.
- Overall Comfort
- Moderate
2.4 / 5
- Average Summer High
- 86°F
- Days Above 90°F
- 30 days/year
- Summer Feel
- Very Good
Warm · 86°F
Excellent
4.1 / 5
- Average Winter Low
- 17°F / -8°C
- Days Below Freezing
- 144 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
- 73%
- Comfortable Months
- 5 months
- Solar Exposure
- 1508 peak sun hrs/yr
Good
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
- 6.3 µg/m³ 2021-2025 modeled average
- Best Months
- May, Jun, Jul, Aug, Sep
- Toughest Months
- Feb, Jan, Dec
- Heat Risk
- Moderate
- Drought Risk
- High
- Weather Volatility
- Moderate
Good · 6.3 µg/m³ 2021-2025 modeled average
Good
3.2 / 5
Des Moines in everyday life
Could Des Moines work for you?
What may work well
- The May through September best month group and five comfortable months give outdoor planning a clear window.
- Excellent modeled air quality and 1,508 sun hours per year provide useful inputs when paired with Poor allergies and 73 percent humidity.
- An 86°F summer high and Moderate heat row are easier for some households than extreme heat, provided the home handles winter.
What to think about
- A 17°F winter low and 144 freezing days add heating, ice, snow, parking, maintenance, medications, and care route questions.
- Poor allergies, 73 percent humidity, High heat and drought rows can change outdoor time, cooling, water, and reserve needs.
- High storm and Moderate flood rows keep roof, trees, drainage, insurance, power, and alternate route planning visible.
Plan Des Moines climate around winter, heat, and home comfort
Review the home in winter
Check heating, insulation, stairs, sidewalks, parking, ice and snow response, medications, groceries, care routes, vehicle readiness, power, and backup rides.
Plan for summer heat
Review cooling, shade, windows, indoor air, humidity, utility planning, hydration, outdoor timing, backup power, parking, and the route from care or recreation.
Pair air and drought planning
Use Excellent modeled air quality, Poor allergies, High drought, storm, flood, water, filters, ventilation, insurance, power, and reserve questions together.
Use the decision actions
Save the strongest seasonal plan, Compare another home, and choose Find my fit after heat, allergies, winter surfaces, drought, storm, cooling, heating, and route questions are answered.
Questions retirees ask
How hot is a Des Moines summer?
The average summer high is 86°F and the ledger lists 30 days above 90°F. Review cooling, shade, hydration, humidity, indoor air, utility planning, mobility, and personal tolerance.
What does 144 freezing days mean for a retiree?
It adds heating, ice, snow, stairs, sidewalks, parking, groceries, medications, care routes, maintenance, vehicle readiness, and backup transportation to the home review.
How can air quality be Excellent while allergies are Poor?
The modeled fine particle entry is Excellent at 6.3 micrograms per cubic meter for 2021 through 2025, while allergy levels are Poor. Review filters, ventilation, moisture, humidity, and personal sensitivity.
When are outdoor plans easiest?
May through September are the listed best months, while February, January, and December are toughest. Check actual conditions, surfaces, heat, allergies, and mobility before each outing.
How should High drought risk affect a home choice?
Review water, landscape, heat, power, insurance, household reserves, storm and flood preparation, and the selected home's route and maintenance needs.
Des Moines offers a useful warm season and five comfortable months, provided the home handles 144 freezing days, Poor allergies, humidity, High heat, drought, storms, heating, cooling, and power questions. Save the strongest seasonal plan, Compare another address, and choose Find my fit after the home and route review.
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, checked against U.S. EPA AirData
Used for Air Quality, Long-Term Fine-Particle Pollution
Checked 2026-05-18
- Federal Emergency Management Agency National Risk Index
Used for Drought Risk
Partnerships never affect rankings, scores, methodology, or inclusion.
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