September weather forecastLecompton, KS
September
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 12h and 24min
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 6min
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: 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: 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: 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: 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).





