Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
During the shift to September, a minor reduction in average high-temperature is observed, shifting from 84.6°F (29.2°C) in August to a still warm 78.4°F (25.8°C). During September, Willis records a consistent average nighttime temperature of 58.8°F (14.9°C).Humidity
In Willis, the average relative humidity in September is 73%.Rainfall
In Willis, in September, it is raining for 11.8 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, there are 123.6 rainfall days, and 25.47" (647mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:50 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:05 pm CDT.
Sunshine
In September, the average sunshine is 9.1h.UV index
In Willis, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in Willis in September?
How many hours of daylight does Willis have in September?
When is the sunrise / sunset in September in Willis?
How many hours of sunshine does Willis have in September?
What is the UV index reading in September?
Average temperature in September
Willis, KS
- Average high temperature in September: 78.4°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in September: 58.8°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in September
Willis, 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 (29.87"Hg).
Average wind speed in September
Willis, KS
- Average wind speed in September: 7.9mph
The windiest months (with the highest average wind speed) are March and April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in September
Willis, KS
- Average humidity in September: 73%
The month with the highest relative humidity is June (77%).
The month with the lowest relative humidity is October (67%).
Average rainfall in September
Willis, KS
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in September
Willis, KS
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (4.2 days).
Average snowfall in September
Willis, KS
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.56").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Willis, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Willis, 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 24min).
- Average sunshine in September: 9h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Willis, KS
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in September
Willis, 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
Willis, KS
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Willis, 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).
Willis, Kansas, USA
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