September weather forecastBonner Springs, KS
September
Weather in September
September in Bonner Springs brings noticeable changes in the weather with the arrival of the fall season. The average temperature lowers to 78.4°F (25.8°C), marking the end of the hotter part of the year. The fall colors begin to show, trees turn hues of orange and brown, and local festivals start to take the center stage. The days shorten but are still long enough to allow people to indulge in outdoor activities. September acts as a bridge between the intense summer and the approaching mild winter, creating a pleasing weather experience for the Bonner Springs populace.Temperature
A modest decline in the average high-temperature is seen during September, decreasing from 84.9°F (29.4°C) in August to a still warm 78.4°F (25.8°C). Bonner Springs, in September, experiences an average temperature of 59.5°F (15.3°C) at night.Humidity
In September, the average relative humidity is 74%.Rainfall
In Bonner Springs, in September, during 12 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. Throughout the year, there are 128.7 rainfall days, and 25.83" (656mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Bonner Springs.Daylight
In Bonner Springs, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:49 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:15 am and sunset at 7:03 pm CDT.
Sunshine
In Bonner Springs, the average sunshine in September is 9.3h.UV index
In Bonner Springs, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bonner Springs, KS
- Average high temperature in September: 78.4°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.2°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
Bonner Springs, KS
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Bonner Springs, KS
- Average wind speed in September: 7.3mph
The windiest months (with the highest average wind speed) are February, March and April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Bonner Springs, KS
- Average humidity in September: 74%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Bonner Springs, KS
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in September
Bonner Springs, KS
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Bonner Springs, KS
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Bonner Springs, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bonner Springs, 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 18min
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 12min).
Average sunshine days in September
Bonner Springs, KS
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in September
Bonner Springs, 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
Bonner Springs, 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 25).
Average visibility in September
Bonner Springs, 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).
