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 reveals a small adjustment in temperature, transitioning from an average high of 85.5°F (29.7°C) in August to a still warm 80.1°F (26.7°C). In September, South Union encounters an average low-temperature of 61.7°F (16.5°C) during the night.Humidity
In September, the average relative humidity is 76%.Rainfall
September is the month with the least rainfall in South Union. Rain falls for 14.4 days and accumulates 2.32" (59mm) of precipitation.Snowfall
In South Union, snow does not fall in May through October.Daylight
In South Union, the average length of the day in September is 12h and 24min.On the first day of September in South Union, Kentucky, sunrise is at 6:18 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:31 pm CDT.
Sunshine
The average sunshine in September in South Union is 8.7h.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 exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
What is the usual temperature for South Union in September?
What is the average humidity in September in South Union?
What is the driest month in South Union?
How much does it rain in South Union in September?
When it does not snow in South Union?
How many hours of daylight does South Union have in September?
What time are sunrise and sunset in September in South Union?
How long on average sun shines in September in South Union?
What is the UV index reading in September in South Union?
Average temperature in September
South Union, KY
- Average high temperature in September: 80.1°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 (42.3°F).
- Average low temperature in September: 61.7°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 (28.8°F).
Average pressure in September
South Union, KY
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
South Union, KY
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in September
South Union, KY
- Average humidity in September: 76%
The months with the highest relative humidity are March, May and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
South Union, KY
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is July (4.13").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in September
South Union, KY
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in September
South Union, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
South Union, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
South Union, KY
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 4min
The months with the most sunshine are June and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in September
South Union, KY
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in September
South Union, 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
South Union, KY
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
South Union, 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).
South Union, Kentucky, USA
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