September weather forecast
Nicholasville, KY

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Weather in September

As September descends on Nicholasville, a fresh crispness lace the air with temperatures ranging from 59.2°F (15.1°C) to 78.1°F (25.6°C). Autumn steps up its advance as the summer heat retreats, red and gold hues sweep across the city. Steadier winds begin to stir, carrying whispers of the coming winter. An incremental rise in relative humidity makes the air feel fresher and invigorates the city. With the conclusion of September, the door to the cooler climes of October swings wide open.

Temperature

Nicholasville's September weather features a light decline in high-temperatures, reducing from 84.2°F (29°C) in August to a still moderately hot 78.1°F (25.6°C). Nicholasville encounters an average low-temperature of 59.2°F (15.1°C) during September nights.

Humidity

In September, the average relative humidity is 76%.

Rainfall

September and October are months with the least rain when the rain falls for 12.6 days and typically aggregates up to 2.05" (52mm) of rain.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 7:08 am and sunset at 8:07 pm. On the last day of September, in Nicholasville, sunrise is at 7:33 am and sunset at 7:22 pm EDT.

Sunshine

The average sunshine in September is 8.1h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 5 suggests this advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

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 59.2°F (15.1°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 93.2°F (34°C).

What is the average humidity in September?

The average relative humidity in September is 76%.

What is the driest month?

September and October are months with the least rain when the rain falls for 12.6 days and typically aggregates up to 2.05" (52mm) of rain.

How many days does it rain in September?

In Nicholasville, in September, it is raining for 12.6 days, with typically 2.05" (52mm) of accumulated precipitation.

When it does not snow?

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

How many hours of daylight does Nicholasville have in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 7:08 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 7:22 pm EDT.

How many hours of sunshine does Nicholasville have in September?

The average sunshine duration in September is 8.1h.

How high is the UV index in September?

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes 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
Nicholasville, KY

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

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (39.2°F).

  • Average low temperature in September: 59.2°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).

Average pressure in September
Nicholasville, KY

Average pressure in September - Nicholasville, 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).

Average wind speed in September
Nicholasville, KY

Average wind speed in September - Nicholasville, KY
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in September
Nicholasville, KY

Average humidity in September - Nicholasville, 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%).

Average rainfall in September
Nicholasville, KY

Average rainfall in September - Nicholasville, KY
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is May (3.23").
The driest months (with the least rainfall) are September and October (2.05").

Average rainfall days in September
Nicholasville, KY

Average rainfall days in September - Nicholasville, KY
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (9.9 days).

Average snowfall in September
Nicholasville, KY

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

The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Nicholasville, KY

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

The month with the highest number of snowfall days is January (8.4 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
Nicholasville, KY

Average daylight in September / Average sunshine in September - Nicholasville, 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 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in September
Nicholasville, KY

Average sunshine days in September - Nicholasville, KY
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in September
Nicholasville, KY

Average UV index in September - Nicholasville, 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).

Average cloud cover in September
Nicholasville, KY

Average cloud cover in September - Nicholasville, KY
  • Average cloud cover in September: 34

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

Average visibility in September
Nicholasville, KY

Average visibility in September - Nicholasville, 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).

Nicholasville, Kentucky, USA

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