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
The arrival of September is marked by a minor reduction in average high-temperature, sliding from 85.8°F (29.9°C) in August to a still warm 79.7°F (26.5°C). In September, the average low-temperature records at a moderate 60.1°F (15.6°C) during the nights.Humidity
In Custer, the average relative humidity in September is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 9.8 days and typically collects 0.51" (13mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day in Custer, Kentucky, is 12h and 25min.On the first day of September, sunrise is at 6:15 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:29 pm CDT.
Sunshine
In Custer, Kentucky, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September in Custer, Kentucky, is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What is the usual temperature for Custer in September?
What is the average humidity in September in Custer?
What is the driest month in Custer?
How much does it rain in Custer in September?
When it does not snow in Custer?
How many hours of daylight does Custer have in September?
When is the sunrise / sunset in September in Custer?
How many hours of sunshine does Custer have in September?
What is the UV index reading in September in Custer?
Average temperature in September
Custer, KY
- Average high temperature in September: 79.7°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 (39.7°F).
- Average low temperature in September: 60.1°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in September
Custer, 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
Custer, KY
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in September
Custer, KY
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Custer, KY
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is April (1.73").
The driest month (with the least rainfall) is September (0.51").
Average rainfall days in September
Custer, KY
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is October (8.1 days).
Average snowfall in September
Custer, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Custer, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.8 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
Custer, 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: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 18min).
Average sunshine days in September
Custer, KY
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is May (12.6 days).
Average UV index in September
Custer, 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
Custer, KY
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Custer, KY
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are January, May, July and August (5mi).
Custer, Kentucky, USA
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