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 brings a slight decrease in the average high-temperature, shifting from 85.6°F (29.8°C) in August to a still warm 79.3°F (26.3°C). Chapman experiences a dramatic descent in temperature during September, with the average nighttime reading settling at a mild 57.7°F (14.3°C).Humidity
The average relative humidity in September is 75%.Rainfall
The month with the least rainfall in Chapman is September, when the rain falls for 13.4 days and typically collects 1.93" (49mm) of precipitation.Snowfall
May through September are months without snowfall in Chapman.Daylight
In Chapman, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 7:00 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:14 pm EDT.
Sunshine
The average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index in Chapman, Kentucky, is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In September, a regular UV index of 4 translates into these guidelines:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
What are September temperatures in Chapman?
What is the average humidity in September in Chapman?
What is the driest month in Chapman?
How much does it rain in Chapman in September?
When it does not snow in Chapman?
Does it snow in Chapman in September?
How many hours of daylight does Chapman have in September?
When is the sunrise / sunset in September in Chapman?
How many hours of sunshine does Chapman have in September?
What is the UV index intensity in September in Chapman?
Average temperature in September
Chapman, KY
- Average high temperature in September: 79.3°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in September: 57.7°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in September
Chapman, KY
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Chapman, KY
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are January, February and April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Chapman, KY
- Average humidity in September: 75%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Chapman, KY
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Chapman, KY
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in September
Chapman, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.58").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Chapman, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Chapman, KY
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Chapman, KY
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in September
Chapman, KY
- Average UV index in September: 4
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 and December (UV index 2).
Average cloud cover in September
Chapman, KY
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Chapman, KY
- Average visibility in September: 5mi
The months with the highest visibility are April, June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, September and December (5mi).
Chapman, Kentucky, USA
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