What October feels like in Denver
For Denver, October is the heart of autumn. Mild afternoons make it easy to spend hours outdoors. Temperatures fall sharply after dark — a swing of roughly 15.1°C (27.2°F) — and nights are cold. The air is comfortable — neither muggy nor dry.
Rain in Denver in October
Wet days are occasional rather than regular, about one day in 5. A rainy day brings about 6.1 mm (0.2 in) on average — steady rain rather than a passing shower. Across the year Denver averages about 5.7 mm per rainy day, so October is typical.
Daylight and sunshine in October
Mid-month, Denver gets 11 h 14 min of daylight, from sunrise near 7:09 am to sunset near 6:22 pm. Days are getting shorter: 1 h 17 min less daylight than in mid-September. About 85% of daylight hours are sunny; in short, skies are mostly clear.
How October compares to the rest of the year
In Denver's temperature order, October sits as the 6th warmest month. Against September, the average high is 8°C (14.4°F) lower, with 5 mm more rain. November is cooler again. November averages a high of 11.4°C (52.5°F).
Who October suits
- Sightseeing: a good fit — daytime temperatures are fine for walking around.
- Parks & outdoor: a good fit — pleasant for gardens, parks and riversides.
- Hiking: a good fit — mild temperatures for trails.
Tips for visiting Denver in October
Versatile Layers
Days are noticeably warmer than nights — layers you can add or remove.
Warm Layers
Insulated layers and warm shoes for the cold hours.
Sunglasses
Bright days make sunglasses worth packing.
Quick questions
How warm is Denver in October?
It feels mild: typical highs are 18.2°C (64.8°F), with lows near 3.1°C (37.6°F).
Does it rain a lot in Denver in October?
Not especially. There are about 6 rainy days (37 mm), mostly moderate rain.
What should I wear in Denver in October?
Pack versatile layers, warm layers and sunglasses. Add a layer for after dark.
Is October or November better for visiting Denver?
October, clearly: it ranks #2 of 12 among Denver's months, against #8 for the other. November is cooler and has fewer rainy days.