September weather forecast
Shepherdsville, KY

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Weather in September

September brings the first signs of autumn to Shepherdsville, with a noticeable dip in temperature from August, ranging from 59.9°F (15.5°C) to 79.7°F (26.5°C). The days start to shorten, the greenery takes on a reddish tint, and cooler nights become more common. September is when Shepherdsville sheds its summer glory and readies itself for the colorful splendor of autumn. This is a month of transition as the town retreats from the scorching summer heat and prepares for the impending fall.

Temperature

Shepherdsville observes a small decrease in the average high-temperature with the arrival of September, falling from August's hot 86°F (30°C) to a warm 79.7°F (26.5°C). In the month of September, the temperature generally rests at an average low of 59.9°F (15.5°C).

Humidity

The months with the lowest humidity in Shepherdsville are August through October, with an average relative humidity of 74%.

Rainfall

September is the month with the least rainfall in Shepherdsville. Rain falls for 11.5 days and accumulates 1.22" (31mm) of precipitation.

Snowfall

May through October are months without snowfall in Shepherdsville.

Daylight

The average length of the day in September in Shepherdsville is 12h and 25min.
On the first day of September in Shepherdsville, sunrise is at 7:13 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:26 pm EDT.

Sunshine

In September, the average sunshine in Shepherdsville is 8.3h.

UV index

In Shepherdsville, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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Frequently asked questions

What are September temperatures in Shepherdsville?

Shepherdsville in September has an average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 59.9°F (15.5°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 96.8°F (36°C).

What are the least humid months in Shepherdsville?

The months with the lowest humidity in Shepherdsville, Kentucky, are August through October, with an average relative humidity of 74%.

What is the average humidity in September in Shepherdsville?

The average relative humidity in September in Shepherdsville is 74%.

What is the driest month in Shepherdsville?

The month with the least rainfall is September, when the rain falls for 11.5 days and typically collects 1.22" (31mm) of precipitation.

How much does it rain in Shepherdsville in September?

In Shepherdsville, in September, it is raining for 11.5 days, with typically 1.22" (31mm) of accumulated precipitation.

When it does not snow in Shepherdsville?

In Shepherdsville, snow does not fall in May through October.

What is the average length of the day in September in Shepherdsville?

In September, the average day length in Shepherdsville is 12h and 25min.

When is the sunrise / sunset in September in Shepherdsville?

On the first day of September in Shepherdsville, sunrise is at 7:13 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:26 pm EDT.

How long on average sun shines in September in Shepherdsville?

In Shepherdsville, Kentucky, the average sunshine duration in September is 8.3h.

How high is the UV index in September in Shepherdsville?

The average daily maximum UV index in September in Shepherdsville, Kentucky, is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from 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
Shepherdsville, KY

Average temperature in September - Shepherdsville, KY
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

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Average pressure in September
Shepherdsville, KY

Average pressure in September - Shepherdsville, KY
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in September
Shepherdsville, KY

Average wind speed in September - Shepherdsville, KY
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are January and February (8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Shepherdsville, KY

Average humidity in September - Shepherdsville, KY
  • Average humidity in September: 74%

The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are August, September and October (74%).

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Average rainfall in September
Shepherdsville, KY

Average rainfall in September - Shepherdsville, KY
  • Average rainfall in September: 1.22"

The wettest month (with the highest rainfall) is April (2.48").
The driest month (with the least rainfall) is September (1.22").

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Average rainfall days in September
Shepherdsville, KY

Average rainfall days in September - Shepherdsville, KY
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (8.2 days).

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Average snowfall in September
Shepherdsville, KY

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

The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Shepherdsville, KY

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

The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Shepherdsville, 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 36min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 18min).

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Average sunshine days in September
Shepherdsville, KY

Average sunshine days in September - Shepherdsville, KY
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is May (11.7 days).

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Average UV index in September
Shepherdsville, KY

Average UV index in September - Shepherdsville, 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, November and December (UV index 2).

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Average cloud cover in September
Shepherdsville, KY

Average cloud cover in September - Shepherdsville, KY
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in September
Shepherdsville, KY

Average visibility in September - Shepherdsville, KY
  • Average visibility in September: 6mi

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

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Shepherdsville, Kentucky, USA

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