Current Weather and Forecast in Fort Collins, CO
Colorado, United States 🇺🇸
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About the weather in Fort Collins
Fort Collins has a semi-arid climate. July is the warmest month, with average highs of 87°, and January the coldest, when nights fall to around 16°. May brings the most rain, on about 13 days, while July is the sunniest, with 12.9 hours of sunshine a day. Over a whole year it rains on roughly 74 days.
Fort Collins climate guide: monthly averages, seasons and the best time to visit
Common questions
Does it snow in Fort Collins?
Yes - about 23 days a year carry measurable snowfall, concentrated October through May.
When should I visit Fort Collins?
Aim for September to October and April if you get the choice: temperatures sit either side of the peak heat rather than in it, and highs average 71°F (22°C) against roughly 6 wet days a month. For the same question asked the other way round, see where else is warm in September.
How warm is Fort Collins on average?
49°F (10°C) across all twelve months - about 62°F (17°C) by day and 37°F (3°C) after dark.
How much sun does Fort Collins get?
10.2 hours a day averaged over the year, peaking in July at 12.9 hours.
What is the coldest month in Fort Collins?
January, with highs of 38°F (4°C) and lows near 16°F (-9°C). The coldest day in the 2015-2024 record fell to -28°F (-33°C).
Which month is wettest in Fort Collins?
May, at 4.1 inches (105 mm) over about 13 days. January is the driest month, at 16 mm (0.6 in).
When is Fort Collins at its hottest?
July, averaging 87°F (31°C) by day and 61°F (16°C) overnight. The hottest single day in our 2015-2024 record for this location reached 100°F (38°C).
How does Fort Collins compare to other cities?
Its 49°F (10°C) annual average is cooler than 92% of the 3496 cities in our dataset, which are all measured on the same 2015-2024 basis.