September weather forecast
Telluride, ID

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Weather in September

The first month of the autumn, September, is also an agreeable month in Telluride, Idaho, with an average temperature fluctuating between 43.7°F (6.5°C) and 69.3°F (20.7°C).

Temperature

The decrease of average high-temperatures is mild in September, with a decline from a moderately hot 79.2°F (26.2°C) in August to a pleasant 69.3°F (20.7°C). The nighttime temperature shows a significant divergence from the daytime highs, averaging at a frosty 43.7°F (6.5°C) in September.

Humidity

In Telluride, Idaho, the average relative humidity in September is 48%.

Rainfall

In September, the rain falls for 8.9 days. Throughout September, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 100.3 rainfall days, and 15.39" (391mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall in Telluride. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 0.39" (10mm) of snow. In Telluride, during the entire year, snow falls for 106.2 days and aggregates up to 69.33" (1761mm) of snow.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:53 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:09 pm MDT.

Sunshine

In Telluride, the average sunshine in September is 10h.

UV index

In Telluride, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 3 during September morphs into the following directions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Telluride?

In Telluride, 69.3°F (20.7°C) is the average high-temperature and 43.7°F (6.5°C) is the average low-temperature during September.

What is the average humidity in September in Telluride?

In Telluride, Idaho, the average relative humidity in September is 48%.

How much does it rain in Telluride in September?

In Telluride, during September, the rain falls for 8.9 days and regularly aggregates up to 1.1" (28mm) of precipitation.

When does it start to snow in Telluride?

September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 0.39" (10mm) of snow.

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

The average day length in September in Telluride, Idaho, is 12h and 28min.

When are sunrise and sunset in September in Telluride?

In September, on the first day of the month, sunrise is at 6:53 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:09 pm MDT.

How many hours of sunshine does Telluride have in September?

The average sunshine duration in September in Telluride, Idaho, is 10h.

What is the UV index reading in September in Telluride?

In September, the average daily maximum UV index in Telluride, Idaho, is 3. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's 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
Telluride, ID

Average temperature in September - Telluride, ID
  • Average high temperature in September: 69.3°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is December (25.7°F).

  • Average low temperature in September: 43.7°F

The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is January (10.2°F).

Average pressure in September
Telluride, ID

Average pressure in September - Telluride, ID
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in September
Telluride, ID

Average wind speed in September - Telluride, ID
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is June (5.9mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).

Average humidity in September
Telluride, ID

Average humidity in September - Telluride, ID
  • Average humidity in September: 48%

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (42%).

Average rainfall in September
Telluride, ID

Average rainfall in September - Telluride, ID
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is July (0.55").

Average rainfall days in September
Telluride, ID

Average rainfall days in September - Telluride, ID
  • Average rainfall days in September: 8.9 days

The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in September
Telluride, ID

Average snowfall in September - Telluride, ID
  • Average snowfall in September: 0.39"

The month with the highest snowfall is January (14.41").
The months with the least snowfall are July and August (0").

Average snowfall days in September
Telluride, ID

Average snowfall days in September - Telluride, ID
  • Average snowfall days in September: 0.5 days

The months with the highest number of snowfall days are February and December (19.9 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in September / Average sunshine in September - Telluride, ID
  • Average daylight in September: 12h and 3min

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

  • Average sunshine in September: 10h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in September
Telluride, ID

Average sunshine days in September - Telluride, ID
  • Average sunshine days in September: 18.6 days

The month with the most sunshine days is July (19.1 days).
The month with the least sunshine days is February (8.6 days).

Average UV index in September
Telluride, ID

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in September
Telluride, ID

Average cloud cover in September - Telluride, ID
  • Average cloud cover in September: 16

The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 12).

Average visibility in September
Telluride, ID

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

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).

Telluride, Idaho, USA

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