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 beginning of September brings a minor change in the average high-temperature, shifting from a moderately hot 85.3°F (29.6°C) in August to a still warm 78.8°F (26°C). Rooney, during September, witnesses an average low-temperature of 57.4°F (14.1°C).Humidity
The average relative humidity in September is 76%.Rainfall
September is the month with the least rainfall in Rooney. Rain falls for 12.7 days and accumulates 1.97" (50mm) of precipitation.Snowfall
In Rooney, snow does not fall in May through September.Daylight
In Rooney, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 7:02 am and sunset at 8:02 pm. On the last day of September, sunrise is at 7:28 am and sunset at 7:16 pm EDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
In September, the average daily maximum UV index in Rooney is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 4 in September leads to these guidelines:
Exercise prevention - Warding off sunburn is urged. When the Sun is at its strongest around midday, find shade and limit exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
What is the driest month in Rooney?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Rooney have in September?
What is the UV index reading in September?
Average temperature in September
Rooney, KY
- Average high temperature in September: 78.8°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 (38.7°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in September
Rooney, 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 (29.96"Hg).
Average wind speed in September
Rooney, KY
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Rooney, KY
- Average humidity in September: 76%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Rooney, KY
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is December (3.15").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Rooney, KY
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in September
Rooney, KY
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.99").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Rooney, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rooney, 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 30min).
- Average sunshine in September: 8h and 2min
The months with the most sunshine are June and August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Rooney, KY
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is February (9.8 days).
Average UV index in September
Rooney, 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, November and December (UV index 2).
Average cloud cover in September
Rooney, KY
- Average cloud cover in September: 34
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
Rooney, KY
- Average visibility in September: 5mi
The months with the highest visibility are March, April, June, October and November (6mi).
The months with the lowest visibility are January, February, May, July, August, September and December (5mi).
Rooney, Kentucky, USA
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