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
September signifies a minor drop in average high-temperature, transitioning from a hot 88.2°F (31.2°C) in August to a moderately hot 80.8°F (27.1°C). During the nights in September, the temperature averages to an enjoyable 62.2°F (16.8°C).Heat index
September's heat index is appraised at 84.2°F (29°C). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
In September, the average relative humidity is 73%.Rainfall
In September, the rain falls for 12.3 days. Throughout September, 2.68" (68mm) of precipitation is accumulated. Throughout the year, there are 133.1 rainfall days, and 29.21" (742mm) of precipitation is accumulated.Snowfall
In Coffeyville, snow does not fall in April, June through October.Daylight
The average length of the day in September in Coffeyville is 12h and 24min.On the first day of the month, sunrise is at 6:53 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:06 pm CDT.
Sunshine
The average sunshine in September is 8.9h.UV index
In Coffeyville, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September in Coffeyville?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Coffeyville, KS
- Average high temperature in September: 80.8°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (43.3°F).
- Average low temperature in September: 62.2°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 (28.2°F).
Average pressure in September
Coffeyville, 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 (29.89"Hg).
Average wind speed in September
Coffeyville, KS
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is March (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity in September
Coffeyville, KS
- Average humidity in September: 73%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and October (69%).
Average rainfall in September
Coffeyville, KS
- Average rainfall in September: 2.68"
The wettest month (with the highest rainfall) is May (5.28").
The driest month (with the least rainfall) is November (1.06").
Average rainfall days in September
Coffeyville, KS
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Coffeyville, KS
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in September
Coffeyville, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Coffeyville, KS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Coffeyville, KS
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in September
Coffeyville, 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 and December (UV index 2).
Average cloud cover in September
Coffeyville, KS
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 24).
Average visibility in September
Coffeyville, 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).
Coffeyville, Kansas, USA
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