Fort Collins climate guide

Temperature in Fort Collins (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
5°C maximum daytime temperature in January in Fort Collins5
7°C maximum daytime temperature in February in Fort Collins7
10°C maximum daytime temperature in March in Fort Collins10
16°C maximum daytime temperature in April in Fort Collins16
21°C maximum daytime temperature in May in Fort Collins21
26°C maximum daytime temperature in June in Fort Collins26
30°C maximum daytime temperature in July in Fort Collins30
28°C maximum daytime temperature in August in Fort Collins28
24°C maximum daytime temperature in September in Fort Collins24
18°C maximum daytime temperature in October in Fort Collins18
10°C maximum daytime temperature in November in Fort Collins10
6°C maximum daytime temperature in December in Fort Collins6
Min temperature (night-time)
-10°C minimum night-time temperature in January in Fort Collins-10
-7°C minimum night-time temperature in February in Fort Collins-7
-4°C minimum night-time temperature in March in Fort Collins-4
1°C minimum night-time temperature in April in Fort Collins1
6°C minimum night-time temperature in May in Fort Collins6
11°C minimum night-time temperature in June in Fort Collins11
14°C minimum night-time temperature in July in Fort Collins14
13°C minimum night-time temperature in August in Fort Collins13
8°C minimum night-time temperature in September in Fort Collins8
2°C minimum night-time temperature in October in Fort Collins2
-4°C minimum night-time temperature in November in Fort Collins-4
-9°C minimum night-time temperature in December in Fort Collins-9

Sunshine & Daylight in Fort Collins

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
10 hours of daylight per day in January in Fort Collins10
11 hours of daylight per day in February in Fort Collins11
12 hours of daylight per day in March in Fort Collins12
13 hours of daylight per day in April in Fort Collins13
14 hours of daylight per day in May in Fort Collins14
15 hours of daylight per day in June in Fort Collins15
15 hours of daylight per day in July in Fort Collins15
14 hours of daylight per day in August in Fort Collins14
12 hours of daylight per day in September in Fort Collins12
11 hours of daylight per day in October in Fort Collins11
10 hours of daylight per day in November in Fort Collins10
9 hours of daylight per day in December in Fort Collins9

Rainfall in Fort Collins

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
5 days with some rainfall in January in Fort Collins5
6 days with some rainfall in February in Fort Collins6
9 days with some rainfall in March in Fort Collins9
9 days with some rainfall in April in Fort Collins9
11 days with some rainfall in May in Fort Collins11
9 days with some rainfall in June in Fort Collins9
9 days with some rainfall in July in Fort Collins9
9 days with some rainfall in August in Fort Collins9
7 days with some rainfall in September in Fort Collins7
5 days with some rainfall in October in Fort Collins5
6 days with some rainfall in November in Fort Collins6
6 days with some rainfall in December in Fort Collins6
Average monthly rainfall (mm)
11 mm monthly rainfall in January in Fort Collins11
11 mm monthly rainfall in February in Fort Collins11
33 mm monthly rainfall in March in Fort Collins33
45 mm monthly rainfall in April in Fort Collins45
70 mm monthly rainfall in May in Fort Collins70
49 mm monthly rainfall in June in Fort Collins49
45 mm monthly rainfall in July in Fort Collins45
33 mm monthly rainfall in August in Fort Collins33
32 mm monthly rainfall in September in Fort Collins32
25 mm monthly rainfall in October in Fort Collins25
19 mm monthly rainfall in November in Fort Collins19
12 mm monthly rainfall in December in Fort Collins12

More climate for Fort Collins

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 2 (Low) in January in Fort Collins2
UV (maximum) index 3 (Moderate) in February in Fort Collins3
UV (maximum) index 5 (Moderate) in March in Fort Collins5
UV (maximum) index 7 (High) in April in Fort Collins7
UV (maximum) index 9 (Very High) in May in Fort Collins9
UV (maximum) index 10 (Very High) in June in Fort Collins10
UV (maximum) index 10 (Very High) in July in Fort Collins10
UV (maximum) index 9 (Very High) in August in Fort Collins9
UV (maximum) index 7 (High) in September in Fort Collins7
UV (maximum) index 4 (Moderate) in October in Fort Collins4
UV (maximum) index 2 (Low) in November in Fort Collins2
UV (maximum) index 2 (Low) in December in Fort Collins2
Heat & Humidity
No heat & humidity in January in Fort Collins0
No heat & humidity in February in Fort Collins0
No heat & humidity in March in Fort Collins0
No heat & humidity in April in Fort Collins0
No heat & humidity in May in Fort Collins0
Low heat & humidity in June in Fort CollinsL
Moderate heat & humidity in July in Fort CollinsM
Low heat & humidity in August in Fort CollinsL
No heat & humidity in September in Fort Collins0
No heat & humidity in October in Fort Collins0
No heat & humidity in November in Fort Collins0
No heat & humidity in December in Fort Collins0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

The climate guide for Fort Collins, Colorado shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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Metric (°C / mm)  |  Imperial (°F / inches)

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