September weather forecast
Burlington, WI

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Weather in September

September signals the transition from hot summer months to milder autumn temperatures, peaking at around 71.1°F (21.7°C). Burlington's foliage starts to change color, transforming the city into a riotous spectacle of shades. Picnics and alfresco activities remain popular as the weather holds steadily pleasant, complemented by moderate rainfall. An added charm to the month is the longer daylight hours, hinting at the residual summer’s retreat. Meanwhile, the returning gusty winds foretell the arrival of a colder season.

Temperature

September signifies a gentle decline in Burlington's average high-temperature, easing from a warm 77.5°F (25.3°C) in August to an agreeable 71.1°F (21.7°C). An average low-temperature of 54.7°F (12.6°C) is observed during September nights.

Humidity

In September, the average relative humidity is 80%.

Rainfall

In Burlington, during September, the rain falls for 13.3 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Burlington, during the entire year, the rain falls for 158.7 days and collects up to 29.88" (759mm) of precipitation.

Snowfall

In Burlington, snow does not fall in June through September.

Daylight

In Burlington, the average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 6:18 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:50 am and sunset at 6:35 pm CDT.

Sunshine

The average sunshine in September in Burlington is 9h.

UV index

In September, the average daily maximum UV index in Burlington is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, an average UV index of 4 transforms into the following instructions:
Be vigilant - Preventing sunburn is recommended. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

What are September temperatures in Burlington?

During September, Burlington experiences an average high-temperature of 71.1°F (21.7°C) and a low-temperature of 54.7°F (12.6°C).

What is the average humidity in September in Burlington?

In Burlington, Wisconsin, the average relative humidity in September is 80%.

How much does it rain in Burlington in September?

In Burlington, in September, it is raining for 13.3 days, with typically 2.05" (52mm) of accumulated precipitation.

When it does not snow in Burlington?

June through September are months without snowfall in Burlington.

Does it snow in Burlington in September?

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

How many hours of daylight does Burlington have in September?

In Burlington, the average day length in September is 12h and 29min.

When are sunrise and sunset in September in Burlington?

In September, on the first day of the month, sunrise is at 6:18 am and sunset at 7:26 pm. On the last day of the month, in Burlington, sunrise is at 6:50 am and sunset at 6:35 pm CDT.

How long on average sun shines in September in Burlington?

The average sunshine duration in September is 9h.

What is the UV index intensity in September in Burlington?

In Burlington, Wisconsin, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Burlington, WI

Average temperature in September - Burlington, WI
  • Average high temperature in September: 71.1°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (25.7°F).

  • Average low temperature in September: 54.7°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

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Average pressure in September
Burlington, WI

Average pressure in September - Burlington, WI
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in September
Burlington, WI

Average wind speed in September - Burlington, WI
  • Average wind speed in September: 7.5mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

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Average humidity in September
Burlington, WI

Average humidity in September - Burlington, WI
  • Average humidity in September: 80%

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April, October and November (77%).

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Average rainfall in September
Burlington, WI

Average rainfall in September - Burlington, WI
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is June (3.78").
The driest month (with the least rainfall) is February (1.54").

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Average rainfall days in September
Burlington, WI

Average rainfall days in September - Burlington, WI
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (5.5 days).

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Average snowfall in September
Burlington, WI

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

The month with the highest snowfall is January (5.43").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Burlington, WI

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

The month with the highest number of snowfall days is January (14.9 days).
The 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, WI

Average daylight in September / Average sunshine in September - Burlington, WI
  • 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: 9h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in September
Burlington, WI

Average sunshine days in September - Burlington, WI
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (9 days).

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Average UV index in September
Burlington, WI

Average UV index in September - Burlington, WI
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in September
Burlington, WI

Average cloud cover in September - Burlington, WI
  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 30).

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Average visibility in September
Burlington, WI

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

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).

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Burlington, Wisconsin, USA

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