Montclair, New Jersey climate
Montclair offers a usable warm season with winter, humidity, and allergy tradeoffs
The climate ledger shows an 83°F average summer high, 12 days above 90°F, a 24°F average winter low, and 123 days below freezing. May, June, July, August, September, and October are the best listed months, while January, February, and December are toughest. Six comfortable months leave room for outdoor plans, but winter surfaces, heating, parking, and mobility still matter.
Humidity is 80 percent, solar exposure is 1,446 peak sun hours per year, air quality is Excellent, allergy levels are Poor, and modeled fine particle pollution is 8 micrograms per cubic meter for 2021 through 2025. The climate cards should guide questions about cooling, indoor air, heating, power, personal tolerance, flood, storm, and seasonal route planning.
Living through the seasons
Summers are the easier season. Winter comfort deserves a closer look.
- Overall Comfort
- Good
2.6 / 5
- Average Summer High
- 83°F
- Days Above 90°F
- 12 days/year
- Summer Feel
- Very Good
Mild · 83°F
Excellent
4.1 / 5
- Average Winter Low
- 24°F / -5°C
- Days Below Freezing
- 123 days/year
- Winter Feel
- Poor
Fair
Poor
1 / 5
The shape of the year
Humidity, comfortable months, and sunshine show how the seasons differ.
- Humidity
- 80%
- Comfortable Months
- 6 months
- Solar Exposure
- 1446 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
- 8 µg/m³ 2021-2025 modeled average
- Best Months
- May, Jun, Jul, Aug, Sep, Oct
- Toughest Months
- Jan, Feb, Dec
- Heat Risk
- Low
- Drought Risk
- Low
- Weather Volatility
- Moderate
Good · 8 µg/m³ 2021-2025 modeled average
Very Good
3 / 5
Montclair in everyday life
Could Montclair work for you?
What may work well
- An 83°F average summer high, only 12 days above 90°F, and six comfortable months can support a meaningful warm season.
- Excellent modeled air quality and 1,446 peak sun hours per year offer useful planning inputs when paired with the Poor allergy level.
- The May through October best month group gives parks, rail, family visits, and outdoor plans a clear seasonal window.
What to think about
- A 24°F average winter low and 123 freezing days add heating, ice, parking, stairs, medication, and winter route questions.
- 80 percent humidity and Poor allergies can change indoor comfort and outdoor tolerance even with Excellent modeled air quality.
- High flood, storm, and heat rows require property, insurance, power, drainage, cooling, and alternate route planning.
Plan Montclair climate around seasons, home comfort, and routes
Review the home's seasonal features
Ask about heating, cooling, insulation, windows, moisture, filters, stairs, shade, storage, parking, drainage, trees, roof, power, and the route from the home.
Compare outdoor and indoor plans
Use the six comfortable months, best and toughest month groups, parks, care, groceries, rail information, airport trips, an indoor option, and an alternate route in one seasonal review.
Plan for allergies and weather
Keep the Excellent air quality screen, 8 micrograms per cubic meter modeled fine particle value, Poor allergies, 80 percent humidity, High heat, flood, and storm rows, and personal tolerance visible.
Use the decision actions
Save the strongest Montclair climate plan, Compare another address, and choose Find my fit after home comfort, seasonal routes, power, insurance, care, and support questions are answered.
Questions retirees ask
Is Montclair hot in summer?
The average summer high is 83°F and the ledger lists 12 days above 90°F. Cooling, shade, hydration, humidity, allergies, mobility, power, outdoor timing, and personal tolerance still matter.
How serious is winter planning?
The average winter low is 24°F and 123 days fall below freezing. Review heating, ice, snow, sidewalks, stairs, parking, power, medications, transportation, and home condition.
What does the air quality entry mean?
Air quality is Excellent and modeled fine particle pollution is 8 micrograms per cubic meter for 2021 through 2025, while allergy levels are Poor and humidity is 80 percent. Review indoor air, moisture, ventilation, heating, cooling, and personal sensitivity.
When are outdoor plans easiest?
May through October are the best listed months and January, February, and December are toughest. Use those groups for planning while checking the actual day's conditions, mobility, surfaces, and route.
Why do flood and storm rows matter for climate?
High flood and storm rows can affect drainage, insurance, power, care routes, groceries, parks, rail, airport visits, and the return home. Review the exact property and keep an alternate plan.
Montclair offers a useful warm season and moderate heat exposure, provided the home handles 80 percent humidity, Poor allergies, 123 freezing days, heating, flood, storm, heat, power, and seasonal routes. Save the strongest climate plan, Compare another address, and choose Find my fit.
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
- 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
- Open-Meteo + Climate Heuristic
Used for Weather Volatility
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