September weather forecast
Breckenridge, CO

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The hilly forest slopes overlooking the vast mountain ranges of Breckenridge in Colorado
The hilly forest slopes overlooking the vast mountain ranges of Breckenridge in Colorado

Weather in September

Breckenridge in September signifies a graceful transition from warmth to a cooler climate. The temperatures slide down further, heralding the city's move towards the chilly season. Days start to contract in terms of daylight, but remain quite sunny. September witnesses the lowest humidity levels in the year, making it comfortably dry. While sunshine duration decreases slightly, a drop in pressure to 30.05" (763mm) envelopes the city, notifying of an ensuing change to colder weather.

Temperature

With the onset of September, Breckenridge experiences a modest temperature adjustment, with the average high-temperature gently receding from a comfortable 63.7°F (17.6°C) in August to a mild 57.6°F (14.2°C). A marked drop from daytime peak temperatures to an average low-temperature of 33.4°F (0.8°C) is observed during the nights in September.

Humidity

In September, the average relative humidity in Breckenridge is 59%.

Rainfall

In Breckenridge, during September, the rain falls for 11.5 days and regularly aggregates up to 1.46" (37mm) of precipitation. Throughout the year, in Breckenridge, there are 110.4 rainfall days, and 24.09" (612mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Breckenridge, Colorado, are January through December. In Breckenridge, during September, snow falls for 5.5 days and regularly aggregates up to 2.05" (52mm) of snow. Throughout the year, there are 158 snowfall days, and 118.82" (3018mm) of snow is accumulated.

Daylight

In Breckenridge, Colorado, the average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:33 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:47 pm MDT.

Sunshine

In September, the average sunshine is 10.5h.

UV index

In September, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 2 suggests this advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Avoiding the Sun during its peak radiation time around midday is a healthy practice. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Breckenridge?

The high-temperature, in September, in Breckenridge, records 57.6°F (14.2°C), while the low-temperature is 33.4°F (0.8°C).

What is the average humidity in September in Breckenridge?

The average relative humidity in September is 59%.

How many days does it rain in September in Breckenridge?

In Breckenridge, Colorado, in September, during 11.5 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

How much does it snow in Breckenridge in September?

In Breckenridge, Colorado, during September, snow falls for 5.5 days and regularly aggregates up to 2.05" (52mm) of snow.

How many hours of daylight does Breckenridge have in September?

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

What time are sunrise and sunset in September in Breckenridge?

On the first day of September, sunrise is at 6:33 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:47 pm MDT.

How many hours of sunshine does Breckenridge have in September?

The average sunshine duration in September in Breckenridge, Colorado, is 10.5h.

How high is the UV index in September in Breckenridge?

The average daily maximum UV index in September in Breckenridge, Colorado, is 2. A UV Index value of 2, and less, symbolizes a low 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
Breckenridge, CO

Average temperature in September - Breckenridge, CO
  • Average high temperature in September: 57.6°F

The warmest month (with the highest average high temperature) is July (65.8°F).
The month with the lowest average high temperature is December (21.2°F).

  • Average low temperature in September: 33.4°F

The month with the highest average low temperature is July (40.1°F).
The coldest months (with the lowest average low temperature) are January and December (0.7°F).

Average pressure in September
Breckenridge, CO

Average pressure in September - Breckenridge, CO
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are April and May (29.94"Hg).

Average wind speed in September
Breckenridge, CO

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

The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Breckenridge, CO

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

The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is June (54%).

Average rainfall in September
Breckenridge, CO

Average rainfall in September - Breckenridge, CO
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is July (3.35").
The driest month (with the least rainfall) is November (1.14").

Average rainfall days in September
Breckenridge, CO

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

The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is November (2.8 days).

Average snowfall in September
Breckenridge, CO

Average snowfall in September - Breckenridge, CO
  • Average snowfall in September: 2.05"

The month with the highest snowfall is May (19.69").
The month with the least snowfall is July (0.24").

Average snowfall days in September
Breckenridge, CO

Average snowfall days in September - Breckenridge, CO
  • Average snowfall days in September: 5.5 days

The month with the highest number of snowfall days is April (22.8 days).
The month with the least snowfall days is July (1.3 days).

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

Average daylight in September / Average sunshine in September - Breckenridge, 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 24min).

  • Average sunshine in September: 10h and 3min

The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in September
Breckenridge, CO

Average sunshine days in September - Breckenridge, CO
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (5.8 days).

Average UV index in September
Breckenridge, CO

Average UV index in September - Breckenridge, CO
  • Average UV index in September: 2

The months with the highest UV index are May, June, July and August (UV index 3).
The months with the lowest UV index are February and December (UV index 1).

Average cloud cover in September
Breckenridge, CO

Average cloud cover in September - Breckenridge, CO
  • Average cloud cover in September: 22

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 19).

Average visibility in September
Breckenridge, CO

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

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

Breckenridge, Colorado, USA

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