September weather forecast
Leadville, CO

Weather in September

The first month of the autumn, September, is still a mild month in Leadville, Colorado, with an average temperature ranging between max 58.8°F (14.9°C) and min 34.7°F (1.5°C).

Temperature

In September, the average high-temperature marginally drops from an enjoyable 64.8°F (18.2°C) in August to a mild 58.8°F (14.9°C). The average low-temperature, in Leadville, is 34.7°F (1.5°C).

Humidity

The average relative humidity in September is 59%.

Rainfall

In Leadville, during 9.1 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, in Leadville, Colorado, there are 103.1 rainfall days, and 19.65" (499mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through December. In September, it is snowing for 2.9 days. Throughout September, 1.02" (26mm) of snow is accumulated. In Leadville, Colorado, during the entire year, snow falls for 141.6 days and aggregates up to 104.69" (2659mm) of snow.

Daylight

The average length of the day in September in Leadville, Colorado, is 12h and 26min.
On the first day of September in Leadville, sunrise is at 6:33 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:49 pm MDT.

Sunshine

The average sunshine in September is 10.9h.

UV index

In September, the average daily maximum UV index in Leadville is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 3 translate into the following recommendations:
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. A wide-brim hat offers excellent sun protection for the 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.
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FAQ

What is the temperature in September in Leadville?

In September, in Leadville, Colorado, the average high-temperature is 58.8°F (14.9°C), and the average low-temperature is 34.7°F (1.5°C).

What is the average humidity in September in Leadville?

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

How many days does it rain in September in Leadville?

In Leadville, Colorado, during September, the rain falls for 9.1 days and regularly aggregates up to 1.02" (26mm) of precipitation.

How much does it snow in Leadville in September?

In September, it is snowing for 2.9 days. Throughout September, 1.02" (26mm) of snow is accumulated.

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

The average day length in September in Leadville is 12h and 26min.

When is the sunrise / sunset in September in Leadville?

In September, on the first day of the month, sunrise is at 6:33 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:49 pm MDT.

How long on average sun shines in September in Leadville?

In Leadville, the average sunshine duration in September is 10.9h.

What is the UV index reading in September in Leadville?

In September, the average daily maximum UV index in Leadville, Colorado, is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Leadville, CO

Average temperature in September - Leadville, CO
  • Average high temperature in September: 58.8°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 (23°F).

  • Average low temperature in September: 34.7°F

The month with the highest average low temperature is July (40.5°F).
The coldest month (with the lowest average low temperature) is January (1.8°F).

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Average pressure in September
Leadville, CO

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

The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is April (29.94"Hg).

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Average wind speed in September
Leadville, CO

Average wind speed in September - Leadville, CO
  • Average wind speed in September: 5.1mph

The windiest months (with the highest average wind speed) are February and June (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in September
Leadville, CO

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

The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (52%).

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Average rainfall in September
Leadville, CO

Average rainfall in September - Leadville, CO
  • Average rainfall in September: 1.02"

The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is November (0.98").

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Average rainfall days in September
Leadville, CO

Average rainfall days in September - Leadville, CO
  • Average rainfall days in September: 9.1 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (2.9 days).

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Average snowfall in September
Leadville, CO

Average snowfall in September - Leadville, CO
  • Average snowfall in September: 1.02"

The month with the highest snowfall is March (18.11").
The month with the least snowfall is August (0.28").

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Average snowfall days in September
Leadville, CO

Average snowfall days in September - Leadville, CO
  • Average snowfall days in September: 2.9 days

The month with the highest number of snowfall days is April (19.9 days).
The months with the least snowfall days are July and August (1 days).

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

Average daylight in September / Average sunshine in September - Leadville, CO
  • Average daylight in September: 12h and 26min

The month with the longest days is June (Average daylight: 14h and 53min).
The month with the shortest days is December (Average daylight: 9h and 28min).

  • Average sunshine in September: 10h and 54min

The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).

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Average sunshine days in September
Leadville, CO

Average sunshine days in September - Leadville, CO
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is April (6.8 days).

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Average UV index in September
Leadville, CO

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

The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in September
Leadville, CO

Average cloud cover in September - Leadville, CO
  • Average cloud cover in September: 19

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 17).

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Average visibility in September
Leadville, CO

Average visibility in September - Leadville, 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 and December (4mi).

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