September weather forecast
Red Feather Lakes, CO

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Weather in September

The first month of the autumn, September, is still a refreshing month in Red Feather Lakes, Colorado, with an average temperature varying between 43.7°F (6.5°C) and 66.6°F (19.2°C).

Temperature

In September, the average high-temperature marginally drops from an agreeable 73.2°F (22.9°C) in August to a comfortable 66.6°F (19.2°C). Marked by a significant temperature drop from daytime highs, the average nighttime temperature lowers to a chilly 43.7°F (6.5°C) throughout September.

Humidity

June, August and September, with an average relative humidity of 48%, are the least humid months in Red Feather Lakes, Colorado.

Rainfall

In September, in Red Feather Lakes, the rain falls for 10.7 days. Throughout September, 1.18" (30mm) of precipitation is accumulated. In Red Feather Lakes, during the entire year, the rain falls for 122.3 days and collects up to 18.15" (461mm) of precipitation.

Snowfall

January through June, August through December are months with snowfall in Red Feather Lakes. In Red Feather Lakes, in September, during 1.5 snowfall days, 0.75" (19mm) of snow is typically accumulated. Throughout the year, in Red Feather Lakes, there are 103.4 snowfall days, and 71.97" (1828mm) of snow is accumulated.

Daylight

In Red Feather Lakes, the average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:30 am and sunset at 7:34 pm. On the last day of September, in Red Feather Lakes, sunrise is at 6:58 am and sunset at 6:45 pm MDT.

Sunshine

In September, the average sunshine is 10.8h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 4 in September translates into the following recommendations:
Take precautions - Protection against sunburn is recommended. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Boost your sun resistance with garments that are densely woven yet spacious. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
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Frequently asked questions

What is the usual temperature for Red Feather Lakes in September?

Red Feather Lakes in September has an average high-temperature of 66.6°F (19.2°C) and an average low-temperature of 43.7°F (6.5°C).

What is the least humid month in Red Feather Lakes?

The months with the lowest humidity are June, August and September, with an average relative humidity of 48%.

What is the average humidity in September in Red Feather Lakes?

In Red Feather Lakes, the average relative humidity in September is 48%.

How much does it rain in Red Feather Lakes in September?

In Red Feather Lakes, in September, during 10.7 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

How much does it snow in Red Feather Lakes in September?

In Red Feather Lakes, during September, snow falls for 1.5 days and regularly aggregates up to 0.75" (19mm) of snow.

What is the average length of the day in September in Red Feather Lakes?

In Red Feather Lakes, Colorado, the average day length in September is 12h and 27min.

What time are sunrise and sunset in September in Red Feather Lakes?

On the first day of September in Red Feather Lakes, sunrise is at 6:30 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:45 pm MDT.

How long on average sun shines in September in Red Feather Lakes?

In Red Feather Lakes, the average sunshine duration in September is 10.8h.

How high is the UV index in September in Red Feather Lakes?

In Red Feather Lakes, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
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
Red Feather Lakes, CO

Average temperature in September - Red Feather Lakes, CO
  • Average high temperature in September: 66.6°F

The warmest month (with the highest average high temperature) is July (74.3°F).
The month with the lowest average high temperature is December (28.6°F).

  • Average low temperature in September: 43.7°F

The month with the highest average low temperature is July (51.3°F).
The coldest month (with the lowest average low temperature) is December (13.3°F).

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Average pressure in September
Red Feather Lakes, CO

Average pressure in September - Red Feather Lakes, CO
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in September
Red Feather Lakes, CO

Average wind speed in September - Red Feather Lakes, CO
  • Average wind speed in September: 8.2mph

The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in September
Red Feather Lakes, CO

Average humidity in September - Red Feather Lakes, CO
  • Average humidity in September: 48%

The month with the highest relative humidity is February (75%).
The months with the lowest relative humidity are June, August and September (48%).

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Average rainfall in September
Red Feather Lakes, CO

Average rainfall in September - Red Feather Lakes, CO
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is January (0.63").

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Average rainfall days in September
Red Feather Lakes, CO

Average rainfall days in September - Red Feather Lakes, CO
  • Average rainfall days in September: 10.7 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is November (4.2 days).

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Average snowfall in September
Red Feather Lakes, CO

Average snowfall in September - Red Feather Lakes, CO
  • Average snowfall in September: 0.75"

The month with the highest snowfall is April (14.88").
The month with the least snowfall is July (0").

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Average snowfall days in September
Red Feather Lakes, CO

Average snowfall days in September - Red Feather Lakes, CO
  • Average snowfall days in September: 1.5 days

The month with the highest number of snowfall days is March (15.8 days).
The month with the least snowfall days is July (0 days).

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Average daylight in September /
Average sunshine in September
Red Feather Lakes, CO

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 10h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).

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Average sunshine days in September
Red Feather Lakes, CO

Average sunshine days in September - Red Feather Lakes, CO
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (7.2 days).

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Average UV index in September
Red Feather Lakes, CO

Average UV index in September - Red Feather Lakes, 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, April, October, November and December (UV index 2).

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Average cloud cover in September
Red Feather Lakes, CO

Average cloud cover in September - Red Feather Lakes, CO
  • Average cloud cover in September: 19

The months with the most cloud cover are February, April and May (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 19).

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Average visibility in September
Red Feather Lakes, CO

Average visibility in September - Red Feather Lakes, 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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Red Feather Lakes, Colorado, USA

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