September weather forecast
Harrodsburg, KY

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Weather in September

September in Harrodsburg indicates the start of autumn. The month is known for its calm and pleasant weather as it transitions from the summer's high temperatures. This period witnesses a significant decrease in daylight hours to 12.4 from 13.6 in August. A notable observation from this month’s weather data is the sharp decline in temperature, falling from 84.6°F (29.2°C) in August to a cooler 78.3°F (25.7°C). The amount of rainfall also decreases from 3.03" (77mm) in August to 2.4" (61mm).

Temperature

The arrival of September in Harrodsburg suggests a slight decrease in the average high-temperature, moving from a moderately hot 84.6°F (29.2°C) in August to a still warm 78.3°F (25.7°C). Harrodsburg observes an average low-temperature of 59.4°F (15.2°C) during September nights.

Humidity

The average relative humidity in September in Harrodsburg is 76%.

Rainfall

The month with the least rainfall in Harrodsburg is September, when the rain falls for 14.3 days and typically collects 2.4" (61mm) of precipitation.

Snowfall

May through September are months without snowfall in Harrodsburg.

Daylight

In Harrodsburg, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 7:10 am and sunset at 8:08 pm. On the last day of September, sunrise is at 7:34 am and sunset at 7:23 pm EDT.

Sunshine

In September, the average sunshine is 8.2h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 5 in September transforms into this advice:
Heed the precautions - Suggestions to avoid sunburn are made. 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.
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Frequently asked questions

What are September temperatures in Harrodsburg?

An average high-temperature, in September, in Harrodsburg, is 78.3°F (25.7°C) and the average low-temperature is 59.4°F (15.2°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 93.2°F (34°C).

What is the average humidity in September in Harrodsburg?

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

What is the driest month in Harrodsburg?

September is the month with the least rainfall in Harrodsburg. Rain falls for 14.3 days and accumulates 2.4" (61mm) of precipitation.

How many days does it rain in September in Harrodsburg?

In Harrodsburg, Kentucky, during September, the rain falls for 14.3 days and regularly aggregates up to 2.4" (61mm) of precipitation.

When it does not snow in Harrodsburg?

May through September are months without snowfall in Harrodsburg, Kentucky.

Does it snow in Harrodsburg in September?

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

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

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

When are sunrise and sunset in September in Harrodsburg?

In September, on the first day of the month, sunrise is at 7:10 am and sunset at 8:08 pm. On the last day of the month, in Harrodsburg, Kentucky, sunrise is at 7:34 am and sunset at 7:23 pm EDT.

How many hours of sunshine does Harrodsburg have in September?

In Harrodsburg, Kentucky, the average sunshine duration in September is 8.2h.

What is the UV index reading in September in Harrodsburg?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
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
Harrodsburg, KY

Average temperature in September - Harrodsburg, KY
  • Average high temperature in September: 78.3°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.4°F).

  • Average low temperature in September: 59.4°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in September
Harrodsburg, KY

Average pressure in September - Harrodsburg, 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 (29.96"Hg).

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Average wind speed in September
Harrodsburg, KY

Average wind speed in September - Harrodsburg, KY
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.1mph).

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Average humidity in September
Harrodsburg, KY

Average humidity in September - Harrodsburg, 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 (75%).

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Average rainfall in September
Harrodsburg, KY

Average rainfall in September - Harrodsburg, KY
  • Average rainfall in September: 2.4"

The wettest month (with the highest rainfall) is April (3.9").
The driest month (with the least rainfall) is September (2.4").

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Average rainfall days in September
Harrodsburg, KY

Average rainfall days in September - Harrodsburg, KY
  • Average rainfall days in September: 14.3 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (11.2 days).

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Average snowfall in September
Harrodsburg, KY

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

The month with the highest snowfall is February (2.87").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Harrodsburg, KY

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

The month with the highest number of snowfall days is January (9.4 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
Harrodsburg, KY

Average daylight in September / Average sunshine in September - Harrodsburg, 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in September
Harrodsburg, KY

Average sunshine days in September - Harrodsburg, KY
  • Average sunshine days in September: 13.4 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is February (9.6 days).

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Average UV index in September
Harrodsburg, KY

Average UV index in September - Harrodsburg, KY
  • Average UV index in September: 5

The months with the highest UV index are 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
Harrodsburg, KY

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

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in September
Harrodsburg, KY

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

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

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Harrodsburg, Kentucky, USA

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