Fort Collins
Colorado, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Fort Collins, CO

A road network through a scenic residential estate in Fort Collins, Colorado, with distant hill ranges and a cloudy sky
A road network through a scenic residential estate in Fort Collins, Colorado, with distant hill ranges and a cloudy sky
January, the same as December, is a wintry winter month in Fort Collins, Colorado, with average temperature fluctuating between 37.9°F (3.3°C) and 20.3°F (-6.5°C). In Fort Collins, the average high-temperature is essentially the same as in December - a still wintry 37.9°F (3.3°C). Weather in January »

The last month of the winter, February, is another cold month in Fort Collins, Colorado, with average temperature varying between 37.8°F (3.2°C) and 19.4°F (-7°C). In February, the average high-temperature is practically the same as in January - a still cold 37.8°F (3.2°C). Weather in February »

March, the first month of the spring, in Fort Collins, is a chilly month, with average temperature fluctuating between 28.2°F (-2.1°C) and 48.4°F (9.1°C). In Fort Collins, the average high-temperature rises, from a cold 37.8°F (3.2°C) in February, to a frosty 48.4°F (9.1°C). Weather in March »

April in Fort Collins, Colorado, is a cool spring month, with average temperature fluctuating between 54.5°F (12.5°C) and 32.9°F (0.5°C). In April, the average high-temperature slightly increases, from a chilly 48.4°F (9.1°C) in March, to a cool 54.5°F (12.5°C). Weather in April »

The last month of the spring, May, is a comfortable month in Fort Collins, Colorado, with temperature in the range of an average high of 63.3°F (17.4°C) and an average low of 40.6°F (4.8°C). In May, the average high-temperature slightly increases, from a cool 54.5°F (12.5°C) in April, to a comfortable 63.3°F (17.4°C). Weather in May »

June, the first month of the summer, in Fort Collins, is a warm month, with average temperature varying between 52.2°F (11.2°C) and 78.3°F (25.7°C). In June, the average high-temperature significantly increases, from an enjoyable 63.3°F (17.4°C) in May, to a warm 78.3°F (25.7°C). Weather in June »

July, like June, in Fort Collins, Colorado, is another warm summer month, with average temperature fluctuating between 56.8°F (13.8°C) and 82.9°F (28.3°C). The warmest month is July, with an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 56.8°F (13.8°C). The average heat index in July is evaluated at 83.3°F (28.5°C). Weather in July »

The last month of the summer, August, is another warm month in Fort Collins, Colorado, with average temperature varying between 81.5°F (27.5°C) and 55.2°F (12.9°C). In Fort Collins, the average high-temperature is essentially the same as in July - a still moderately hot 81.5°F (27.5°C). Weather in August »

September, the first month of the autumn, in Fort Collins, is still a warm month, with average temperature ranging between min 49.3°F (9.6°C) and max 74.5°F (23.6°C). In September, the average high-temperature marginally drops, from 81.5°F (27.5°C) in August, to a still moderately hot 74.5°F (23.6°C). Weather in September »

October, like September, is a moderate autumn month in Fort Collins, Colorado, with average temperature ranging between min 37°F (2.8°C) and max 58.3°F (14.6°C). In October, the average high-temperature declines considerably, from a warm 74.5°F (23.6°C) in September, to a moderate 58.3°F (14.6°C). Weather in October »

November, the last month of the autumn, in Fort Collins, is also a frosty month, with average temperature fluctuating between 27.7°F (-2.4°C) and 46.9°F (8.3°C). In Fort Collins, the average high-temperature decreases, from a moderate 58.3°F (14.6°C) in October, to a chilly 46.9°F (8.3°C). Weather in November »

December, the first month of the winter, in Fort Collins, is also a wintry month, with temperature in the range of an average high of 36.1°F (2.3°C) and an average low of 18.7°F (-7.4°C). December is the coldest month, with an average high-temperature of 36.1°F (2.3°C) and an average low-temperature of 18.7°F (-7.4°C). Weather in December »

How much does it rain in Fort Collins?

In Fort Collins, during the entire year, the rain falls for 73.4 days and collects up to 7.64" (194mm) of precipitation.

What is the driest month in Fort Collins?

January is the month with the least rainfall in Fort Collins, Colorado. Rain falls for 1.2 days and accumulates 0.12" (3mm) of precipitation.

When does it snow in Fort Collins?

Months with snowfall in Fort Collins are January through May, October through December.

How many days does it snow in Fort Collins?

Throughout the year, there are 21.2 snowfall days, and 15.98" (406mm) of snow is accumulated.

What is the month with the lowest UV index in Fort Collins?

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the most humid month in Fort Collins?

With an average relative humidity of 67%, February is the most humid month.

What is the month with the least sunshine in Fort Collins?

The month with the least sunshine is February, with an average of 6.7h of sunshine.

When does it snow the most in Fort Collins?

April is the month with the most snowfall in Fort Collins. Snow falls for 3.1 days and accumulates 3.27" (83mm) of snow.

What is the rainiest month in Fort Collins?

The month with the most rainfall in Fort Collins is May when the rain falls for 12.1 days and typically aggregates up to 1.5" (38mm) of precipitation.

What is the least humid month in Fort Collins?

Months with the lowest humidity in Fort Collins, Colorado, are June, August and September, with an average relative humidity of 45%.

When it does not snow in Fort Collins?

In Fort Collins snow does not fall in June through September.

When are the longest days in Fort Collins?

The month with the longest days in Fort Collins is June, with an average of 15h of daylight.

What month has the most sunshine in Fort Collins?

With an average of 11.8h of sunshine, June has the most sunshine of the year in Fort Collins.

What is the warmest month in Fort Collins?

With an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 56.8°F (13.8°C), July is the warmest month.

What is the month with the highest UV index in Fort Collins?

The month with the highest UV index in Fort Collins, Colorado, is July, with an average maximum UV index of 6.

What is the coldest month in Fort Collins?

With an average high-temperature of 36.1°F (2.3°C) and an average low-temperature of 18.7°F (-7.4°C), December is the coldest month in Fort Collins.

What is the month with the shortest days in Fort Collins?

With an average of 9.3h of daylight, December has the shortest days of the year.
Average temperature - Fort Collins, CO
Average humidity - Fort Collins, CO
Average rainfall - Fort Collins, CO
Average rainfall days - Fort Collins, CO

The month with the highest number of rainy days is July (14.6 days).
The month with the lowest number of rainy days is January (1.2 days).

Average snowfall - Fort Collins, CO
Average snowfall days - Fort Collins, CO

The month with the highest number of snowfall days is February (4.3 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - Fort Collins, CO
Average UV index - Fort Collins, CO