September weather forecast
Petersville, KY

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Weather in September

The first month of the autumn, September, is still a warm month in Petersville, Kentucky, with an average temperature varying between 78.1°F (25.6°C) and 57.7°F (14.3°C).

Temperature

A moderate decline in average high-temperatures is noted in September, moving from a warm 84.2°F (29°C) in August to a still moderately hot 78.1°F (25.6°C). Petersville records an average nighttime low of 57.7°F (14.3°C) in September.

Humidity

In Petersville, the average relative humidity in September is 76%.

Rainfall

January, September and October are months with the least rain when the rain falls for 10.2 days and typically aggregates up to 1.06" (27mm) of rain.

Snowfall

In Petersville, snow does not fall in May through September.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 7:04 am and sunset at 8:03 pm. On the last day of September, sunrise is at 7:29 am and sunset at 7:17 pm EDT.

Sunshine

In September, the average sunshine is 8.3h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The high-temperature during September is 78.1°F (25.6°C) and the low-temperature is 57.7°F (14.3°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is computed to be 93.2°F (34°C).

What is the average humidity in September?

In Petersville, the average relative humidity in September is 76%.

What is the driest month?

January, September and October are months with the least rain when the rain falls for 10.2 days and typically aggregates up to 1.06" (27mm) of rain.

How many days does it rain in September in Petersville?

In Petersville, in September, during 10.2 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

In Petersville, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

The average day length in September in Petersville is 12h and 25min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 7:04 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:17 pm EDT.

How many hours of sunshine does Petersville have in September?

The average sunshine duration in September is 8.3h.

What is the UV index reading in September in Petersville?

In Petersville, Kentucky, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Petersville, KY

Average temperature in September - Petersville, KY
  • Average high temperature in September: 78.1°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in September: 57.7°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

Average pressure in September
Petersville, KY

Average pressure in September - Petersville, KY
  • Average pressure in September: 30.04"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Petersville, KY

Average wind speed in September - Petersville, KY
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Petersville, KY

Average humidity in September - Petersville, KY
  • Average humidity in September: 76%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (75%).

Average rainfall in September
Petersville, KY

Average rainfall in September - Petersville, KY
  • Average rainfall in September: 1.06"

The wettest month (with the highest rainfall) is July (1.93").
The driest months (with the least rainfall) are January, September and October (1.06").

Average rainfall days in September
Petersville, KY

Average rainfall days in September - Petersville, KY
  • Average rainfall days in September: 10.2 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (8.3 days).

Average snowfall in September
Petersville, KY

Average snowfall in September - Petersville, KY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Petersville, KY

Average snowfall days in September - Petersville, KY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Petersville, KY

Average daylight in September / Average sunshine in September - Petersville, 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 month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in September
Petersville, KY

Average sunshine days in September - Petersville, KY
  • Average sunshine days in September: 17.7 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is February (11.4 days).

Average UV index in September
Petersville, KY

Average UV index in September - Petersville, 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
Petersville, KY

Average cloud cover in September - Petersville, KY
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in September
Petersville, KY

Average visibility in September - Petersville, KY
  • Average visibility in September: 5mi

The months with the highest visibility are March, April, June, August, October, November and December (6mi).
The months with the lowest visibility are January, February, May, July and September (5mi).

Petersville, Kentucky, USA

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