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's advent in Henderson, Kentucky, presents an average high-temperature of a still warm 79.7°F (26.5°C), indicating a slight variation from the conditions of the previous month. The average nighttime temperature in Henderson lowers to a comfortable 61°F (16.1°C) throughout September.Humidity
In September, the average relative humidity in Henderson is 73%.Rainfall
The month with the least rainfall is September, when the rain falls for 9.9 days and typically collects 0.67" (17mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September in Henderson, Kentucky, is 12h and 25min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:19 pm. On the last day of September, in Henderson, sunrise is at 6:45 am and sunset at 6:34 pm CDT.
Sunshine
The average sunshine in September in Henderson is 9.1h.UV index
In Henderson, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Undertake protective steps - Preventing sun damage is advised. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What is the average September temperature in Henderson?
What is the average humidity in September in Henderson?
What is the driest month in Henderson?
How many days does it rain in September in Henderson?
When it does not snow in Henderson?
What is the average length of the day in September in Henderson?
When are sunrise and sunset in September in Henderson?
How many hours of sunshine does Henderson have in September?
What is the UV index intensity in September in Henderson?
Average temperature in September
Henderson, KY
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (39.4°F).
- Average low temperature in September: 61°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in September
Henderson, KY
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Henderson, KY
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
Henderson, KY
- Average humidity in September: 73%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Henderson, KY
- Average rainfall in September: 0.67"
The wettest month (with the highest rainfall) is April (1.65").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in September
Henderson, KY
- Average rainfall days in September: 9.9 days
The months with the highest number of rainy days are May and July (14.4 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in September
Henderson, KY
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Henderson, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Henderson, KY
- 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 36min).
- Average sunshine in September: 9h and 1min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in September
Henderson, KY
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is July (13.1 days).
Average UV index in September
Henderson, KY
- 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 and December (UV index 2).
Average cloud cover in September
Henderson, KY
- Average cloud cover in September: 28
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
Henderson, KY
- 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).
Henderson, Kentucky, USA
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