September weather forecast
Marble, CO

Share

Weather in September

The first month of the autumn, September, is also an enjoyable month in Marble, Colorado, with temperature in the range of an average low of 35.1°F (1.7°C) and an average high of 61.7°F (16.5°C).

Temperature

The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from an agreeable 68°F (20°C) in August to a refreshing 61.7°F (16.5°C). Throughout September, Marble braces for a considerable drop from daytime highs, with an average low-temperature of 35.1°F (1.7°C).

Humidity

The average relative humidity in September in Marble is 59%.

Rainfall

In Marble, during September, the rain falls for 11.5 days and regularly aggregates up to 1.14" (29mm) of precipitation. In Marble, during the entire year, the rain falls for 121.7 days and collects up to 17.01" (432mm) of precipitation.

Snowfall

January through December are months with snowfall. In Marble, in September, snow falls for 3.5 days, with typically accumulated 0.94" (24mm) of snow. Throughout the year, in Marble, there are 140.5 snowfall days, and 73.74" (1873mm) of snow is accumulated.

Daylight

In Marble, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:38 am and sunset at 7:38 pm. On the last day of September, in Marble, sunrise is at 7:04 am and sunset at 6:52 pm MDT.

Sunshine

In September, the average sunshine is 10.9h.

UV index

The average daily maximum UV index in September in Marble is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 3 transforms into these recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Boost your sun resistance with garments that are densely woven yet spacious. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
[Resources]

Frequently asked questions

What is the average September temperature in Marble?

An average high-temperature, in September, in Marble, is 61.7°F (16.5°C) and the average low-temperature is 35.1°F (1.7°C).

What is the average humidity in September in Marble?

The average relative humidity in September in Marble is 59%.

How much does it rain in Marble in September?

In Marble, Colorado, in September, it is raining for 11.5 days, with typically 1.14" (29mm) of accumulated precipitation.

How many days does it snow in September in Marble?

In Marble, Colorado, during September, snow falls for 3.5 days and regularly aggregates up to 0.94" (24mm) of snow.

How many hours of daylight does Marble have in September?

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

When is the sunrise / sunset in September in Marble?

On the first day of September, sunrise is at 6:38 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:52 pm MDT.

How long on average sun shines in September in Marble?

The average sunshine duration in September in Marble is 10.9h.

What is the UV index intensity in September in Marble?

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Marble, CO

Average temperature in September - Marble, CO
  • Average high temperature in September: 61.7°F

The warmest month (with the highest average high temperature) is July (70.3°F).
The month with the lowest average high temperature is December (24.6°F).

  • Average low temperature in September: 35.1°F

The month with the highest average low temperature is July (41.7°F).
The coldest month (with the lowest average low temperature) is January (2.5°F).

[Resources]

Average pressure in September
Marble, CO

Average pressure in September - Marble, CO
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is May (29.94"Hg).

[Resources]

Average wind speed in September
Marble, CO

Average wind speed in September - Marble, CO
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).

[Resources]

Average humidity in September
Marble, CO

Average humidity in September - Marble, CO
  • Average humidity in September: 59%

The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is June (51%).

[Resources]

Average rainfall in September
Marble, CO

Average rainfall in September - Marble, CO
  • Average rainfall in September: 1.14"

The wettest month (with the highest rainfall) is July (2.6").
The driest month (with the least rainfall) is November (0.79").

[Resources]

Average rainfall days in September
Marble, CO

Average rainfall days in September - Marble, CO
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is November (4.5 days).

[Resources]

Average snowfall in September
Marble, CO

Average snowfall in September - Marble, CO
  • Average snowfall in September: 0.94"

The month with the highest snowfall is March (12.6").
The month with the least snowfall is July (0.04").

[Resources]

Average snowfall days in September
Marble, CO

Average snowfall days in September - Marble, CO
  • Average snowfall days in September: 3.5 days

The month with the highest number of snowfall days is February (20.3 days).
The month with the least snowfall days is July (0.3 days).

[Resources]

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

Average daylight in September / Average sunshine in September - Marble, 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 30min).

  • Average sunshine in September: 10h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

[Resources]

Average sunshine days in September
Marble, CO

Average sunshine days in September - Marble, CO
  • Average sunshine days in September: 12 days

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (6.8 days).

[Resources]

Average UV index in September
Marble, CO

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

The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are February and December (UV index 1).

[Resources]

Average cloud cover in September
Marble, CO

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

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 16).

[Resources]

Average visibility in September
Marble, CO

Average visibility in September - Marble, CO
  • 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, February, March and December (4mi).

[Resources]

Marble, Colorado, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location