September weather forecast
La Crosse, KS

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Weather in September

September in La Crosse, Kansas brings the first signs of fall. The brilliant summer sun starts to dim, and the weather leans towards mild and pleasing. The landscape starts to change, gathering hues of rich autumnal colors. The temperature starts to dip, falling in a range from 61.9°F (16.6°C) to 82.8°F (28.2°C). As the evening air starts to crisp, residents transition into their autumn wardrobes.

Temperature

The transition into September in La Crosse is accompanied by a slight temperature decrease, with the average high-temperature shifting from a hot 90.3°F (32.4°C) in August to a moderately hot 82.8°F (28.2°C). In September, the temperature in La Crosse, Kansas, drops to an average of 61.9°F (16.6°C) at night.

Heat index

In September, the heat index is estimated at a hot 86°F (30°C). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.
Note that heat index values are valued for light wind and location in the shade. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

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

Rainfall

In September, the rain falls for 10 days. Throughout September, 1.18" (30mm) of precipitation is accumulated. Throughout the year, there are 97.2 rainfall days, and 16.61" (422mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day in La Crosse is 12h and 25min.
On the first day of the month, sunrise is at 7:07 am and sunset at 8:06 pm. On the last day of September, in La Crosse, sunrise is at 7:32 am and sunset at 7:21 pm CDT.

Sunshine

In September, the average sunshine in La Crosse, Kansas, is 9h.

UV index

In La Crosse, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 5 during September translates into the following directions:
Act with care - The need to guard against sun damage is communicated. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in La Crosse in September?

September temperatures vary between a high-temperature of 82.8°F (28.2°C) and a low-temperature of 61.9°F (16.6°C). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 86°F (30°C).

What is the average humidity in September in La Crosse?

In La Crosse, Kansas, the average relative humidity in September is 59%.

How many days does it rain in September in La Crosse?

In La Crosse, Kansas, in September, during 10 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

When it does not snow in La Crosse?

May through September are months without snowfall in La Crosse, Kansas.

Does it snow in La Crosse in September?

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

What is the average length of the day in September in La Crosse?

The average day length in September in La Crosse is 12h and 25min.

What time are sunrise and sunset in September in La Crosse?

On the first day of September in La Crosse, sunrise is at 7:07 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:21 pm CDT.

How many hours of sunshine does La Crosse have in September?

The average sunshine duration in September is 9h.

What is the UV index reading in September in La Crosse?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
La Crosse, KS

Average temperature in September - La Crosse, KS
  • Average high temperature in September: 82.8°F

The warmest month (with the highest average high temperature) is July (93.7°F).
The month with the lowest average high temperature is December (43.2°F).

  • Average low temperature in September: 61.9°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in September
La Crosse, KS

Average pressure in September - La Crosse, KS
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in September
La Crosse, KS

Average wind speed in September - La Crosse, KS
  • Average wind speed in September: 11.1mph

The windiest month (with the highest average wind speed) is April (12.8mph).
The calmest month (with the lowest average wind speed) is August (9.8mph).

Average humidity in September
La Crosse, KS

Average humidity in September - La Crosse, KS
  • Average humidity in September: 59%

The months with the highest relative humidity are January and December (65%).
The month with the lowest relative humidity is July (54%).

Average rainfall in September
La Crosse, KS

Average rainfall in September - La Crosse, KS
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is May (2.87").
The driest months (with the least rainfall) are January and November (0.47").

Average rainfall days in September
La Crosse, KS

Average rainfall days in September - La Crosse, KS
  • Average rainfall days in September: 10 days

The month with the highest number of rainy days is August (13.1 days).
The month with the least rainy days is January (2.7 days).

Average snowfall in September
La Crosse, KS

Average snowfall in September - La Crosse, KS
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.97").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
La Crosse, KS

Average snowfall days in September - La Crosse, KS
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
La Crosse, KS

Average daylight in September / Average sunshine in September - La Crosse, KS
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).

Average sunshine days in September
La Crosse, KS

Average sunshine days in September - La Crosse, KS
  • Average sunshine days in September: 18.4 days

The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is August (14.4 days).

Average UV index in September
La Crosse, KS

Average UV index in September - La Crosse, KS
  • Average UV index in September: 5

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

Average cloud cover in September
La Crosse, KS

Average cloud cover in September - La Crosse, KS
  • Average cloud cover in September: 22

The months with the most cloud cover are February and April (Cloud cover 34).
The month with the least cloud cover is June (Cloud cover 18).

Average visibility in September
La Crosse, KS

Average visibility in September - La Crosse, KS
  • Average visibility in September: 6mi

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

La Crosse, Kansas, USA

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