September weather forecast
Steamboat Springs, CO

Winter, snow on trees, and the beautiful gondola house afar, in the Steamboat Springs Resort, Colorado
Winter, snow on trees, and the beautiful gondola house afar, in the Steamboat Springs Resort, Colorado

Weather in September

The first month of the autumn, September, is still a comfortable month in Steamboat Springs, Colorado, with temperature in the range of an average high of 67.3°F (19.6°C) and an average low of 38.8°F (3.8°C).

Temperature

In Steamboat Springs, the average high-temperature in September slightly decreases from a warm 75.4°F (24.1°C) in August to a comfortable 67.3°F (19.6°C). In Steamboat Springs, in September, the average low-temperature is 38.8°F (3.8°C).

Humidity

In September, the average relative humidity is 51%.

Rainfall

In Steamboat Springs, Colorado, in September, it is raining for 5.9 days, with typically 0.28" (7mm) of accumulated precipitation. Throughout the year, in Steamboat Springs, Colorado, there are 74.4 rainfall days, and 8.15" (207mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall in Steamboat Springs. September is the first month it typically snows in Steamboat Springs. Throughout September, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. In Steamboat Springs, Colorado, during the entire year, snow falls for 79.6 days and aggregates up to 42.4" (1077mm) of snow.

Daylight

In Steamboat Springs, the average length of the day in September is 12h and 27min.
On the first day of September in Steamboat Springs, sunrise is at 6:34 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:51 pm MDT.

Sunshine

In September, the average sunshine is 11h.

UV index

The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 3 in September transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in September in Steamboat Springs?

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

How many days does it rain in September in Steamboat Springs?

In Steamboat Springs, in September, it is raining for 5.9 days, with typically 0.28" (7mm) of accumulated precipitation.

When does it start to snow in Steamboat Springs?

September is the first month it typically snows in Steamboat Springs, Colorado. Throughout September, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow.

How many hours of daylight does Steamboat Springs have in September?

The average day length in September in Steamboat Springs is 12h and 27min.

When are sunrise and sunset in September in Steamboat Springs?

In September, on the first day of the month, sunrise is at 6:34 am and sunset at 7:39 pm. On the last day of the month, in Steamboat Springs, Colorado, sunrise is at 7:03 am and sunset at 6:51 pm MDT.

How long on average sun shines in September in Steamboat Springs?

In Steamboat Springs, Colorado, the average sunshine duration in September is 11h.

What is the UV index reading in September in Steamboat Springs?

In Steamboat Springs, Colorado, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.

Average temperature in September
Steamboat Springs, CO

Average temperature in September - Steamboat Springs, CO
  • Average high temperature in September: 67.3°F

The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is December (25.7°F).

  • Average low temperature in September: 38.8°F

The month with the highest average low temperature is July (45.7°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).

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Average pressure in September
Steamboat Springs, CO

Average pressure in September - Steamboat Springs, CO
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are April, May and June (29.93"Hg).

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Average wind speed in September
Steamboat Springs, CO

Average wind speed in September - Steamboat Springs, CO
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is June (6.8mph).
The calmest months (with the lowest average wind speed) are January and December (5mph).

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Average humidity in September
Steamboat Springs, CO

Average humidity in September - Steamboat Springs, CO
  • Average humidity in September: 51%

The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is August (50%).

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Average rainfall in September
Steamboat Springs, CO

Average rainfall in September - Steamboat Springs, CO
  • Average rainfall in September: 0.28"

The wettest months (with the highest rainfall) are January and February (1.02").
The driest month (with the least rainfall) is August (0.24").

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Average rainfall days in September
Steamboat Springs, CO

Average rainfall days in September - Steamboat Springs, CO
  • Average rainfall days in September: 5.9 days

The month with the highest number of rainy days is April (9.9 days).
The month with the least rainy days is November (4 days).

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Average snowfall in September
Steamboat Springs, CO

Average snowfall in September - Steamboat Springs, CO
  • Average snowfall in September: 0.04"

The month with the highest snowfall is January (8.39").
The months with the least snowfall are July and August (0").

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Average snowfall days in September
Steamboat Springs, CO

Average snowfall days in September - Steamboat Springs, CO
  • Average snowfall days in September: 0.3 days

The month with the highest number of snowfall days is December (15.3 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
Steamboat Springs, CO

Average daylight in September / Average sunshine in September - Steamboat Springs, CO
  • Average daylight in September: 12h and 27min

The month with the longest days is June (Average daylight: 15h and 1min).
The month with the shortest days is December (Average daylight: 9h and 20min).

  • Average sunshine in September: 11h

The months with the most sunshine are June and July (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 5.2h).

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Average sunshine days in September
Steamboat Springs, CO

Average sunshine days in September - Steamboat Springs, CO
  • Average sunshine days in September: 20.2 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is April (13.5 days).

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Average UV index in September
Steamboat Springs, CO

Average UV index in September - Steamboat Springs, CO
  • Average UV index in September: 3

The months with the highest UV index are 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
Steamboat Springs, CO

Average cloud cover in September - Steamboat Springs, CO
  • Average cloud cover in September: 14

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June, August and September (Cloud cover 14).

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Average visibility in September
Steamboat Springs, CO

Average visibility in September - Steamboat Springs, CO
  • Average visibility in September: 6mi

The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (4mi).

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