September weather forecastChapman, KS
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Chapman, Kansas, with an average temperature fluctuating between 81.1°F (27.3°C) and 61.2°F (16.2°C).Temperature
Chapman experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a tropical 88.3°F (31.3°C) in August to a moderately hot 81.1°F (27.3°C). During the nights in September, Chapman experiences a consistent average temperature of 61.2°F (16.2°C).Heat index
The average heat index in September is calculated to be 84.2°F (29°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
The average relative humidity in September is 66%.Rainfall
In September, the rain falls for 10.1 days. Throughout September, 1.38" (35mm) of precipitation is accumulated. In Chapman, Kansas, during the entire year, the rain falls for 104.5 days and collects up to 18.58" (472mm) of precipitation.Snowfall
In Chapman, snow does not fall in May through September.Daylight
In Chapman, the average length of the day in September is 12h and 26min.On the first day of September in Chapman, sunrise is at 6:57 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:11 pm CDT.
Sunshine
The average sunshine in September in Chapman is 8.9h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the UV index of 5 transforms into the following advice:
Make use of precautions - It is urged to ward off sun damage. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chapman, KS
- Average high temperature in September: 81.1°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in September: 61.2°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Chapman, KS
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Chapman, KS
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is April (12mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).
Average humidity in September
Chapman, KS
- Average humidity in September: 66%
The month with the highest relative humidity is May (73%).
The months with the lowest relative humidity are July and October (63%).
Average rainfall in September
Chapman, KS
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in September
Chapman, KS
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (3.4 days).
Average snowfall in September
Chapman, KS
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Chapman, 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
Chapman, 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: 8h and 54min
The months with the most sunshine are June and July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Chapman, KS
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is July (14.6 days).
Average UV index in September
Chapman, KS
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
Chapman, KS
- Average cloud cover in September: 25
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is June (Cloud cover 21).
Average visibility in September
Chapman, 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).
