October 9 is statistically one of the best days of the year in Denver. With minimal rain risk (10%) and pleasant highs of 20°C, it's ideal for outdoor adventures. Expect a bustling atmosphere in Denver right now—this is when the city truly comes alive with visitors.
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Essential Travel Info for Denver
Currency
USD
$ United States dollar
Language
English
Driving
Right side
Safety
Moderate Safety
GPI: 2.44
Denver Weather Forecast for October 9
"Mild & Comfortable. Expect average highs of 19.9°C. 10% chance of snow."
What to Wear in Denver in October
Based on historical data for October 9, Denver typically experiences temperatures between 4.5°C and 19.9°C. We recommend packing light jacket, long pants, layers (onion system) to stay comfortable. Trends suggest it will stay mostly dry (10% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Denver
Smart Suitcase
- Light Jacket
- Long Pants
- Layers (Onion System)
Average High
19.9°C
Daytime Peak
Average Low
4.5°C
Nighttime Low
Feels Like
19.9°C
🌤️ Feels accurate
Snow Chance
10%
Avg 0.4mm if it snows
Snowfall
0.3 cm
~10% chance
Pressure
1014.6 hPa
Medium volatility
Denver Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
❓ Expect variable conditions. Have flexible plans and pack for multiple weather scenarios.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 40 min to burn
Type III-IV
🟡 60 min to burn
Type V-VI
🟢 100 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
9.7°C
Dry air
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in United States
Flight Traffic
High
85/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~985
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Denver
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:05
☀️ Noon
11:48
🌇 Sunset
17:31
⏱️ Daylight
11h 26m
Wind Speed
13.3 km/h
Gentle breeze
Sunshine
9.2 hrs
Direct Sun (Cloud-free)
Humidity
52%
Comfortable
Travel Intelligence
Exclusive flight analytics & health data for Denver
Smart Flight Estimator
Airport-to-Airport Logistics
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Add your home location in settings to see airport details.
Travel Health & Safety in Denver
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Denver on October 9 averages 19.9°C with a 10% precipitation probability. Wedding/Outdoor Event Score: 97/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Denver Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
October 2
23°C • 10% rain
Score
100
October 3
22.4°C • 13% rain
Score
100
October 4
21.7°C • 14% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (October 9) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Denver Worth Visiting on October 9?
Planning a trip to Denver on October 9? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 19.9°C with a 10% historical precipitation risk.
✈️ Travel Logistics: Approximately 985 landing slots available daily during this period, indicating peak tourist activity.
📊 Historical Extremes: The hottest October 9 recorded in the last 30 years saw temperatures hit 28.4°C in 2020, while the coldest dropped to -8.9°C in 2017.