September weather forecast and climate
Burlington, CO

Weather in September

The first month of the autumn, September, is also a moderately hot month in Burlington, Colorado, with average temperature ranging between max 80.1°F (26.7°C) and min 58.3°F (14.6°C).

Temperature

In September, the average high-temperature marginally drops, from a tropical 87.1°F (30.6°C) in August, to a moderately hot 80.1°F (26.7°C). In Burlington, the average low-temperature is 58.3°F (14.6°C).

Humidity

In Burlington, the average relative humidity is 49%.

Rainfall

In Burlington, during September, the rain falls for 10.5 days and regularly aggregates up to 1.1" (28mm) of precipitation. Throughout the year, there are 108.3 rainfall days, and 13.39" (340mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Burlington, the average length of the day is 12.4h.

Sunshine

In September, the average sunshine is 10.1h.

UV index

In September, the average daily maximum UV index in Burlington is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Burlington?

In September, in Burlington, the average high-temperature is 80.1°F (26.7°C), and the average low-temperature is 58.3°F (14.6°C).

What is the average humidity in September in Burlington?

In September, the average relative humidity in Burlington is 49%.

How many days does it rain in September in Burlington?

In Burlington, during September, the rain falls for 10.5 days and regularly aggregates up to 1.1" (28mm) of precipitation.

Does it snow in Burlington in September?

In Burlington, Colorado, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Burlington?

June through September are months without snowfall.

How many hours of daylight does Burlington have in September?

The average length of the day in September in Burlington, Colorado, is 12.4h.

How many hours of sunshine does Burlington have in September?

The average sunshine in September is 10.1h.

What is the UV index reading in September in Burlington?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in September
Burlington, CO

Average temperature in September - Burlington, CO
  • Average high temperature in September: 80.1°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is December (41.2°F).

  • Average low temperature in September: 58.3°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).

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Average pressure in September
Burlington, CO

Average pressure in September - Burlington, CO
  • Average pressure in September: 29.92"

Months with the highest atmospheric pressure are January and December (30.1").
The month with the lowest atmospheric pressure is June (29.8").

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Average wind speed in September
Burlington, CO

Average wind speed in September - Burlington, CO
  • Average wind speed in September: 11.2mph

The windiest month (with the highest average wind speed) is April (13mph).
The calmest month (with the lowest average wind speed) is August (10.3mph).

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Average humidity in September
Burlington, CO

Average humidity in September - Burlington, CO
  • Average humidity in September: 49%

Months with the highest relative humidity are January, February and December (61%).
Months with the lowest relative humidity are June and July (48%).

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Average rainfall in September
Burlington, CO

Average rainfall in September - Burlington, CO
  • Average rainfall in September: 1.1"

The wettest months (with the highest rainfall) are May and July (1.93").
The driest month (with the least rainfall) is January (0.39").

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Average rainfall days in September
Burlington, CO

Average rainfall days in September - Burlington, CO
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is July (15 days).
Months with the least rainy days are February and December (3.8 days).

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Average snowfall in September
Burlington, CO

Average snowfall in September - Burlington, CO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.28").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Burlington, CO

Average snowfall days in September - Burlington, CO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (7.7 days).
Months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in September: 10.1h

The month with the most sunshine is August (Average sunshine: 11.7h).
The month with the least sunshine is February (Average sunshine: 6.4h).

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Average sunshine days in September
Burlington, CO

Average sunshine days in September - Burlington, CO
  • Average sunshine days in September: 16.1 days

The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is July (11.9 days).

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Average UV index in September
Burlington, CO

Average UV index in September - Burlington, CO
  • Average UV index in September: 5

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Burlington, CO

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

The month with the most cloud cover is February (Cloud cover 30).
The month with the least cloud cover is September (Cloud cover 17).

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Average visibility in September
Burlington, CO

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

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

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