THINGS TO DO · YOUTUBE SHORT
Planning a trip to Fort Collins, CO? 🦋
A local activity Short shared by Happy Nomads.
Watch on YouTube ↗
Weather · September
Fort Collins weather in September
Average highs of 77°F, lows of 48°F and 1.4 in of rain, from 30 years of weather records.
September is Fort Collins’s 4th warmest month, with average highs of 77°F and lows of 48°F. That is 8° cooler than August, and 13° above the yearly average high.
- Average high
- 77°F
- Average low
- 48°F
- Precipitation
- 1.4 in
- Wet days
- 7
- Snow
- 0.70 in
- Sunrise · sunset
- 6:40 AM · 7:10 PM
September across the year
High and low Rain
What to wear in September
- Warm days: shorts and T-shirts, with a light layer for cooler evenings.
September is good for
What’s on in Fort Collins in September
See all upcoming events and school days off.
Around Fort Collins
See Fort Collins
A look around town before you go.
THINGS TO DO · YOUTUBE SHORT
Things We Love in Old Town Fort Collins
A local activity Short shared by Colorado State University.
Watch on YouTube ↗September compared with the months around it
Planning a trip? See the best time to visit Fort Collins and today’s forecast.
Questions
How hot does it get in Fort Collins in September?
Average highs are 77°F and average lows 48°F, for a daily mean of 63°F. Individual days run hotter or colder than these 30-year averages.
Does it rain in Fort Collins in September?
September averages 1.4 in of precipitation over about 7 days with at least 0.01 in. It is the 6th wettest month of the year.
Does it snow in Fort Collins in September?
Yes, about 0.70 in of snow on average.
What time is sunset in Fort Collins in September?
Around mid-September the sun rises about 6:40 AM and sets about 7:10 PM, for roughly 12.5 hours of daylight.
Is September a good time to visit Fort Collins?
Yes. September is one of the mildest months, with highs between 65°F and 85°F and little rain.
NOAA U.S. Climate Normals 1991–2020, Ft Collins station (2.3 mi from downtown). Sunrise and sunset are calculated for September 15 at the city’s coordinates.