Best Time to Visit Fort Collins
Best time: Aug, Jul, Jun, Sep.
Jul is warmest (30°C high); May is rainiest (65 mm).
Fort Collins weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | 5.4 | -9.8 | 10 | 3.7 |
| Feb | 7.9 | -7.3 | 9 | 5.2 |
| Mar | 11.5 | -3.6 | 36 | 7.2 |
| Apr | 15.9 | 0.6 | 51 | 8.5 |
| May | 21 | 5.8 | 65 | 10.1 |
| Jun | 26.9 | 10.5 | 50 | 11.2 |
| Jul | 30 | 13.2 | 47 | 11.2 |
| Aug | 28.8 | 12.4 | 35 | 9.7 |
| Sep | 24.1 | 7.3 | 35 | 8.1 |
| Oct | 17.9 | 1.4 | 24 | 5.8 |
| Nov | 9.9 | -4.7 | 20 | 3.9 |
| Dec | 5.9 | -9 | 12 | 3.4 |
Average high temperature
Best months by activity
Overall: AugJulJunSep
Beaches: JulAugJunSep
Hiking: AugSepJunOct
Sightseeing: AugJulJunSep
Fort Collins quick facts
What to pack
Cold months (Jan, Feb, Mar, Nov, Dec): warm layers and a coat.
Frequently asked questions
When is the best time to visit Fort Collins?
Aug, Jul, Jun, Sep.
What is the rainiest month?
May, about 65 mm.
What is the warmest month?
Jul, with average highs of 30°C.
Where to stay
See Fort Collins hotels · Book Fort Collins tours & activities
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Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.