Fort Collins weather by month

Check out Fort Collins weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

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
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

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
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

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

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Fort Collins by month

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

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The climate guide for Colorado (Fort Collins) 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.

What's the climate like in Fort Collins?

Fort Collins has a cold semi arid climate with hot summers.

Fort Collins weather in January

Expect daytime maximum temperatures of 5°C in Fort Collins, Colorado in January based on long-term weather averages. There are 7 hours of sunshine per day on average, which might fall as snow.

  • 5°C maximum daytime temperature in January in Fort Collins5
    5°C max day temperature
  • 7 hours of sunshine per day
  • 5 days with some rainfall in January in Fort Collins5
    5 days with some rainfall
  • -10°C minimum night-time temperature in January in Fort Collins-10
    -10°C min night temperature
  • 10 hours of daylight per day in January in Fort Collins10
    10 hours of daylight per day
  • No heat & humidity in January in Fort Collins0
    No heat & humidity
  • 11 mm monthly rainfall in January in Fort Collins11
    11 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Fort Collins2
    2 (Low) UV index

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Fort Collins weather in February

Expect daytime maximum temperatures of 7°C in Fort Collins, Colorado in February based on long-term weather averages. There are 7 hours of sunshine per day on average, which might fall as snow.

  • 7°C maximum daytime temperature in February in Fort Collins7
    7°C max day temperature
  • 7 hours of sunshine per day
  • 6 days with some rainfall in February in Fort Collins6
    6 days with some rainfall
  • -7°C minimum night-time temperature in February in Fort Collins-7
    -7°C min night temperature
  • 11 hours of daylight per day in February in Fort Collins11
    11 hours of daylight per day
  • No heat & humidity in February in Fort Collins0
    No heat & humidity
  • 11 mm monthly rainfall in February in Fort Collins11
    11 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in February in Fort Collins3
    3 (Moderate) UV index

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Fort Collins weather in March

Expect daytime maximum temperatures of 10°C in Fort Collins, Colorado in March based on long-term weather averages. There are 8 hours of sunshine per day on average.

  • 10°C maximum daytime temperature in March in Fort Collins10
    10°C max day temperature
  • 8 hours of sunshine per day
  • 9 days with some rainfall in March in Fort Collins9
    9 days with some rainfall
  • -4°C minimum night-time temperature in March in Fort Collins-4
    -4°C min night temperature
  • 12 hours of daylight per day in March in Fort Collins12
    12 hours of daylight per day
  • No heat & humidity in March in Fort Collins0
    No heat & humidity
  • 33 mm monthly rainfall in March in Fort Collins33
    33 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in March in Fort Collins5
    5 (Moderate) UV index

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Fort Collins weather in April

Expect daytime maximum temperatures of 16°C in Fort Collins, Colorado in April based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 45 mm of rainfall in the month.

  • 16°C maximum daytime temperature in April in Fort Collins16
    16°C max day temperature
  • 9 hours of sunshine per day
  • 9 days with some rainfall in April in Fort Collins9
    9 days with some rainfall
  • 1°C minimum night-time temperature in April in Fort Collins1
    1°C min night temperature
  • 13 hours of daylight per day in April in Fort Collins13
    13 hours of daylight per day
  • No heat & humidity in April in Fort Collins0
    No heat & humidity
  • 45 mm monthly rainfall in April in Fort Collins45
    45 mm of monthly rainfall
  • UV (maximum) index 7 (High) in April in Fort Collins7
    7 (High) UV index

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Fort Collins weather in May

Expect daytime maximum temperatures of 21°C in Fort Collins, Colorado in May based on long-term weather averages. There are 10 hours of sunshine per day on average with 11 days with some rainfall and typically 70 mm of rainfall in the month.

  • 21°C maximum daytime temperature in May in Fort Collins21
    21°C max day temperature
  • 10 hours of sunshine per day
  • 11 days with some rainfall in May in Fort Collins11
    11 days with some rainfall
  • 6°C minimum night-time temperature in May in Fort Collins6
    6°C min night temperature
  • 14 hours of daylight per day in May in Fort Collins14
    14 hours of daylight per day
  • No heat & humidity in May in Fort Collins0
    No heat & humidity
  • 70 mm monthly rainfall in May in Fort Collins70
    70 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in May in Fort Collins9
    9 (Very High) UV index

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Fort Collins weather in June

Expect daytime maximum temperatures of 26°C in Fort Collins, Colorado in June based on long-term weather averages. There are 11 hours of sunshine per day on average with typically 49 mm of rainfall in the month.

  • 26°C maximum daytime temperature in June in Fort Collins26
    26°C max day temperature
  • 11 hours of sunshine per day
  • 9 days with some rainfall in June in Fort Collins9
    9 days with some rainfall
  • 11°C minimum night-time temperature in June in Fort Collins11
    11°C min night temperature
  • 15 hours of daylight per day in June in Fort Collins15
    15 hours of daylight per day
  • Low heat & humidity in June in Fort CollinsL
    Low heat & humidity
  • 49 mm monthly rainfall in June in Fort Collins49
    49 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in June in Fort Collins10
    10 (Very High) UV index

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Fort Collins weather in July

Expect daytime maximum temperatures of 30°C in Fort Collins, Colorado in July based on long-term weather averages. There are 11 hours of sunshine per day on average with typically 45 mm of rainfall in the month.

  • 30°C maximum daytime temperature in July in Fort Collins30
    30°C max day temperature
  • 11 hours of sunshine per day
  • 9 days with some rainfall in July in Fort Collins9
    9 days with some rainfall
  • 14°C minimum night-time temperature in July in Fort Collins14
    14°C min night temperature
  • 15 hours of daylight per day in July in Fort Collins15
    15 hours of daylight per day
  • Moderate heat & humidity in July in Fort CollinsM
    Moderate heat & humidity
  • 45 mm monthly rainfall in July in Fort Collins45
    45 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in July in Fort Collins10
    10 (Very High) UV index

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Fort Collins weather in August

Expect daytime maximum temperatures of 28°C in Fort Collins, Colorado in August based on long-term weather averages. There are 10 hours of sunshine per day on average.

  • 28°C maximum daytime temperature in August in Fort Collins28
    28°C max day temperature
  • 10 hours of sunshine per day
  • 9 days with some rainfall in August in Fort Collins9
    9 days with some rainfall
  • 13°C minimum night-time temperature in August in Fort Collins13
    13°C min night temperature
  • 14 hours of daylight per day in August in Fort Collins14
    14 hours of daylight per day
  • Low heat & humidity in August in Fort CollinsL
    Low heat & humidity
  • 33 mm monthly rainfall in August in Fort Collins33
    33 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Fort Collins9
    9 (Very High) UV index

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Fort Collins weather in September

Expect daytime maximum temperatures of 24°C in Fort Collins, Colorado in September based on long-term weather averages. There are 9 hours of sunshine per day on average.

  • 24°C maximum daytime temperature in September in Fort Collins24
    24°C max day temperature
  • 9 hours of sunshine per day
  • 7 days with some rainfall in September in Fort Collins7
    7 days with some rainfall
  • 8°C minimum night-time temperature in September in Fort Collins8
    8°C min night temperature
  • 12 hours of daylight per day in September in Fort Collins12
    12 hours of daylight per day
  • No heat & humidity in September in Fort Collins0
    No heat & humidity
  • 32 mm monthly rainfall in September in Fort Collins32
    32 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Fort Collins7
    7 (High) UV index

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Fort Collins weather in October

Expect daytime maximum temperatures of 18°C in Fort Collins, Colorado in October based on long-term weather averages. There are 8 hours of sunshine per day on average.

  • 18°C maximum daytime temperature in October in Fort Collins18
    18°C max day temperature
  • 8 hours of sunshine per day
  • 5 days with some rainfall in October in Fort Collins5
    5 days with some rainfall
  • 2°C minimum night-time temperature in October in Fort Collins2
    2°C min night temperature
  • 11 hours of daylight per day in October in Fort Collins11
    11 hours of daylight per day
  • No heat & humidity in October in Fort Collins0
    No heat & humidity
  • 25 mm monthly rainfall in October in Fort Collins25
    25 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in October in Fort Collins4
    4 (Moderate) UV index

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Fort Collins weather in November

Expect daytime maximum temperatures of 10°C in Fort Collins, Colorado in November based on long-term weather averages. There are 6 hours of sunshine per day on average.

  • 10°C maximum daytime temperature in November in Fort Collins10
    10°C max day temperature
  • 6 hours of sunshine per day
  • 6 days with some rainfall in November in Fort Collins6
    6 days with some rainfall
  • -4°C minimum night-time temperature in November in Fort Collins-4
    -4°C min night temperature
  • 10 hours of daylight per day in November in Fort Collins10
    10 hours of daylight per day
  • No heat & humidity in November in Fort Collins0
    No heat & humidity
  • 19 mm monthly rainfall in November in Fort Collins19
    19 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in November in Fort Collins2
    2 (Low) UV index

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Fort Collins weather in December

Expect daytime maximum temperatures of 6°C in Fort Collins, Colorado in December based on long-term weather averages. There are 6 hours of sunshine per day on average, which might fall as snow.

  • 6°C maximum daytime temperature in December in Fort Collins6
    6°C max day temperature
  • 6 hours of sunshine per day
  • 6 days with some rainfall in December in Fort Collins6
    6 days with some rainfall
  • -9°C minimum night-time temperature in December in Fort Collins-9
    -9°C min night temperature
  • 9 hours of daylight per day in December in Fort Collins9
    9 hours of daylight per day
  • No heat & humidity in December in Fort Collins0
    No heat & humidity
  • 12 mm monthly rainfall in December in Fort Collins12
    12 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Fort Collins2
    2 (Low) UV index

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Fort Collins by month

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

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The climate guide for Colorado (Fort Collins) 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.

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

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Compare Fort Collins with the UK

Below the Fort Collins chart shows average maximum daytime temperature for Fort Collins, Colorado, USA and the UK (London).

Maximum daytime temperature (°C)

Fort Collins, Colorado, USA
UK (London)
5
7
7
7
10
10
16
13
21
17
26
20
30
22
28
22
24
19
18
15
10
10
6
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

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