September weather forecast
Lecompton, KS

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Lecompton, Kansas, with an average temperature varying between 59.5°F (15.3°C) and 78.8°F (26°C).

Temperature

The onset of September aligns with a soft reduction in the average high-temperature, gently falling from 85.6°F (29.8°C) in August to a still warm 78.8°F (26°C). Lecompton, in September, witnesses an average low-temperature of 59.5°F (15.3°C).

Humidity

The average relative humidity in September is 74%.

Rainfall

In Lecompton, in September, it is raining for 11.4 days, with typically 1.93" (49mm) of accumulated precipitation. Throughout the year, there are 119.9 rainfall days, and 21.1" (536mm) of precipitation is accumulated.

Snowfall

In Lecompton, snow does not fall in April, June through September.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:51 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:05 pm CDT.

Sunshine

In Lecompton, Kansas, the average sunshine in September is 9.1h.

UV index

In Lecompton, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

The average high-temperature, in September, in Lecompton, is 78.8°F (26°C), while the average low-temperature is 59.5°F (15.3°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is calculated to be 96.8°F (36°C).

What is the average humidity in September?

The average relative humidity in September is 74%.

How much does it rain in September?

In Lecompton, in September, it is raining for 11.4 days, with typically 1.93" (49mm) of accumulated precipitation.

When it does not snow?

April, June through September are months without snowfall.

Does it snow in Lecompton in September?

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

How many hours of daylight does Lecompton have in September?

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

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:51 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:05 pm CDT.

How many hours of sunshine does Lecompton have in September?

In September, the average sunshine duration is 9.1h.

How high is the UV index in September?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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
Lecompton, KS

Average temperature in September - Lecompton, KS
  • Average high temperature in September: 78.8°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in September: 59.5°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in September
Lecompton, KS

Average pressure in September - Lecompton, KS
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in September
Lecompton, KS

Average wind speed in September - Lecompton, KS
  • Average wind speed in September: 7.6mph

The windiest months (with the highest average wind speed) are March and April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

Average humidity in September
Lecompton, KS

Average humidity in September - Lecompton, KS
  • Average humidity in September: 74%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are October and November (69%).

Average rainfall in September
Lecompton, KS

Average rainfall in September - Lecompton, KS
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in September
Lecompton, KS

Average rainfall days in September - Lecompton, KS
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in September
Lecompton, KS

Average snowfall in September - Lecompton, KS
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.13").
The months with the least snowfall are April, June, July, August and September (0").

Average snowfall days in September
Lecompton, KS

Average snowfall days in September - Lecompton, KS
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (5.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Lecompton, KS

Average daylight in September / Average sunshine in September - Lecompton, KS
  • 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 30min).

  • Average sunshine in September: 9h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

Average sunshine days in September
Lecompton, KS

Average sunshine days in September - Lecompton, KS
  • Average sunshine days in September: 17.1 days

The month with the most sunshine days is January (23.1 days).
The month with the least sunshine days is May (13.3 days).

Average UV index in September
Lecompton, KS

Average UV index in September - Lecompton, KS
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Lecompton, KS

Average cloud cover in September - Lecompton, KS
  • Average cloud cover in September: 29

The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are June and July (Cloud cover 26).

Average visibility in September
Lecompton, KS

Average visibility in September - Lecompton, 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).

Lecompton, Kansas, USA

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