September weather forecast
Bailey, CO

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Weather in September

September, the first month of the autumn in Bailey, is also an agreeable month, with temperature in the range of an average low of 45°F (7.2°C) and an average high of 68.9°F (20.5°C).

Temperature

The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a warm 74.7°F (23.7°C) in August to an agreeable 68.9°F (20.5°C). A stark contrast in day to night temperatures can be seen in Bailey in September, with an average low-temperature of 45°F (7.2°C).

Humidity

The average relative humidity in September in Bailey is 51%.

Rainfall

In Bailey, Colorado, in September, during 13.5 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. Throughout the year, there are 134.5 rainfall days, and 19.65" (499mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall in Bailey. September is the first month it typically snows in Bailey. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. In Bailey, during the entire year, snow falls for 60.9 days and aggregates up to 47.28" (1201mm) of snow.

Daylight

In Bailey, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:31 am and sunset at 7:32 pm. On the last day of September, in Bailey, sunrise is at 6:57 am and sunset at 6:45 pm MDT.

Sunshine

The average sunshine in September is 10.9h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 4 in September translates into this advice:
Undertake precautions - It is suggested to shield oneself from sunburn. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

What are September temperatures in Bailey?

In September, in Bailey, the average high-temperature is 68.9°F (20.5°C), and the average low-temperature is 45°F (7.2°C).

What is the average humidity in September in Bailey?

In Bailey, the average relative humidity in September is 51%.

How much does it rain in Bailey in September?

In Bailey, Colorado, during September, the rain falls for 13.5 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When does it start to snow in Bailey?

September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow.

What is the average length of the day in September in Bailey?

In Bailey, Colorado, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September in Bailey?

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:32 pm. On the last day of the month, in Bailey, sunrise is at 6:57 am and sunset at 6:45 pm MDT.

How many hours of sunshine does Bailey have in September?

In Bailey, Colorado, the average sunshine duration in September is 10.9h.

How high is the UV index in September in Bailey?

The average daily maximum UV index in September in Bailey, Colorado, is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Bailey, CO

Average temperature in September - Bailey, CO
  • Average high temperature in September: 68.9°F

The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in September: 45°F

The month with the highest average low temperature is July (51.8°F).
The coldest month (with the lowest average low temperature) is February (15.1°F).

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Average pressure in September
Bailey, CO

Average pressure in September - Bailey, CO
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is April (29.92"Hg).

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Average wind speed in September
Bailey, CO

Average wind speed in September - Bailey, CO
  • Average wind speed in September: 5.6mph

The windiest months (with the highest average wind speed) are February and March (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in September
Bailey, CO

Average humidity in September - Bailey, CO
  • Average humidity in September: 51%

The month with the highest relative humidity is February (73%).
The month with the lowest relative humidity is June (47%).

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Average rainfall in September
Bailey, CO

Average rainfall in September - Bailey, CO
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days in September
Bailey, CO

Average rainfall days in September - Bailey, CO
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (23.7 days).
The month with the least rainy days is November (3.5 days).

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Average snowfall in September
Bailey, CO

Average snowfall in September - Bailey, CO
  • Average snowfall in September: 0.08"

The month with the highest snowfall is March (9.72").
The months with the least snowfall are July and August (0").

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Average snowfall days in September
Bailey, CO

Average snowfall days in September - Bailey, CO
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in September /
Average sunshine in September
Bailey, CO

Average daylight in September / Average sunshine in September - Bailey, CO
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 10h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).

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Average sunshine days in September
Bailey, CO

Average sunshine days in September - Bailey, CO
  • Average sunshine days in September: 12.5 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is July (4.3 days).

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Average UV index in September
Bailey, CO

Average UV index in September - Bailey, CO
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in September
Bailey, CO

Average cloud cover in September - Bailey, CO
  • Average cloud cover in September: 17

The month with the most cloud cover is April (Cloud cover 28).
The months with the least cloud cover are September, October and November (Cloud cover 17).

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Average visibility in September
Bailey, CO

Average visibility in September - Bailey, CO
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Bailey, Colorado, USA

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