September weather forecast
Telluride, CO

The scenic setting of the ski resort spot town of Telluride in Colorado
The scenic setting of the ski resort spot town of Telluride in Colorado

Weather in September

The first month of the autumn, September, is still a mild month in Telluride, Colorado, with average temperature varying between 37.2°F (2.9°C) and 59.4°F (15.2°C).

Temperature

In September, the average high-temperature marginally drops, from an enjoyable 65.1°F (18.4°C) in August, to a mild 59.4°F (15.2°C). The average low-temperature, in September, is 37.2°F (2.9°C).

Humidity

The average relative humidity in September is 61%.

Rainfall

In Telluride, Colorado, during September, the rain falls for 12.6 days and regularly aggregates up to 1.69" (43mm) of precipitation. Throughout the year, in Telluride, there are 107.5 rainfall days, and 26.34" (669mm) of precipitation is accumulated.

Snowfall

January through December are months with snowfall in Telluride, Colorado. In Telluride, during September, snow falls for 3 days and regularly aggregates up to 2.2" (56mm) of snow. In Telluride, Colorado, during the entire year, snow falls for 117.7 days, and aggregates up to 123.82" (3145mm) of snow.

Daylight

In September, the average length of the day in Telluride is 12.4h.

Sunshine

The average sunshine in September is 10.7h.

UV index

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

FAQ

What is the average humidity in September in Telluride?

In Telluride, the average relative humidity in September is 61%.

How many days does it rain in September in Telluride?

In September, the rain falls for 12.6 days. Throughout September, 1.69" (43mm) of precipitation is accumulated.

How much does it snow in Telluride in September?

In Telluride, during September, snow falls for 3 days and regularly aggregates up to 2.2" (56mm) of snow.

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

In September, the average length of the day in Telluride is 12.4h.

How long on average sun shines in September in Telluride?

In September, the average sunshine is 10.7h.

What is the UV index intensity in September in Telluride?

In Telluride, Colorado, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in September
Telluride, CO

Average temperature in September - Telluride, CO
  • Average high temperature in September: 59.4°F

The warmest month (with the highest average high temperature) is July (66.7°F).
The month with the lowest average high temperature is December (25.7°F).

  • Average low temperature in September: 37.2°F

The month with the highest average low temperature is July (43.3°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).

[Resources]

Average pressure in September
Telluride, CO

Average pressure in September - Telluride, CO
  • Average pressure in September: 30.03"

The month with the highest atmospheric pressure is January (30.23").
Months with the lowest atmospheric pressure are April and May (29.92").

[Resources]

Average wind speed in September
Telluride, CO

Average wind speed in September - Telluride, CO
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

[Resources]

Average humidity in September
Telluride, CO

Average humidity in September - Telluride, CO
  • Average humidity in September: 61%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is June (45%).

[Resources]

Average rainfall in September
Telluride, CO

Average rainfall in September - Telluride, CO
  • Average rainfall in September: 1.69"

The wettest month (with the highest rainfall) is July (4.02").
The driest month (with the least rainfall) is June (1.3").

[Resources]

Average rainfall days in September
Telluride, CO

Average rainfall days in September - Telluride, CO
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is July (21.4 days).
The month with the least rainy days is November (3.1 days).

[Resources]

Average snowfall in September
Telluride, CO

Average snowfall in September - Telluride, CO
  • Average snowfall in September: 2.2"

The month with the highest snowfall is March (19.88").
The month with the least snowfall is July (0.12").

[Resources]

Average snowfall days in September
Telluride, CO

Average snowfall days in September - Telluride, CO
  • Average snowfall days in September: 3 days

The month with the highest number of snowfall days is February (17.3 days).
The month with the least snowfall days is July (0.3 days).

[Resources]

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

Average daylight in September / Average sunshine in September - Telluride, CO
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in September: 10.7h

The month with the most sunshine is June (Average sunshine: 11.8h).
The month with the least sunshine is December (Average sunshine: 5.8h).

[Resources]

Average sunshine days in September
Telluride, CO

Average sunshine days in September - Telluride, CO
  • Average sunshine days in September: 13.9 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (8.1 days).

[Resources]

Average UV index in September
Telluride, CO

Average UV index in September - Telluride, CO
  • Average UV index in September: 3

Months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is December (UV index 1).

[Resources]

Average cloud cover in September
Telluride, CO

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

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 14).

[Resources]

Average visibility in September
Telluride, CO

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

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

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location