September weather forecast
Kirtley, KY

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Weather in September

The first month of the autumn, September, is still a warm month in Kirtley, Kentucky, with an average temperature fluctuating between 61.2°F (16.2°C) and 79.9°F (26.6°C).

Temperature

The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's moderately hot 85.6°F (29.8°C) to a still warm 79.9°F (26.6°C). In the month of September, an average of 61.2°F (16.2°C) marks the low-temperature.

Humidity

The average relative humidity in September is 74%.

Rainfall

The month with the least rainfall is September, when the rain falls for 7.7 days and typically collects 0.35" (9mm) of precipitation.

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 September, sunrise is at 6:19 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:32 pm CDT.

Sunshine

In Kirtley, Kentucky, the average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 5 in September suggests the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Frequently asked questions

What is the usual temperature for Kirtley in September?

The high-temperature during September is 79.9°F (26.6°C) and the low-temperature is 61.2°F (16.2°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 96.8°F (36°C).

What is the average humidity in September in Kirtley?

In September, the average relative humidity is 74%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 7.7 days and typically collects 0.35" (9mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 7.7 days. Throughout September, 0.35" (9mm) of precipitation is accumulated.

When it does not snow?

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

How many hours of daylight does Kirtley have in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:19 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:32 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.7h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Kirtley, KY

Average temperature in September - Kirtley, KY
  • Average high temperature in September: 79.9°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in September: 61.2°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

Average pressure in September
Kirtley, KY

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Kirtley, KY

Average wind speed in September - Kirtley, KY
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest month (with the lowest average wind speed) is July (5.4mph).

Average humidity in September
Kirtley, KY

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

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Kirtley, KY

Average rainfall in September - Kirtley, KY
  • Average rainfall in September: 0.35"

The wettest month (with the highest rainfall) is February (1.18").
The driest month (with the least rainfall) is September (0.35").

Average rainfall days in September
Kirtley, KY

Average rainfall days in September - Kirtley, KY
  • Average rainfall days in September: 7.7 days

The month with the highest number of rainy days is July (13.1 days).
The month with the least rainy days is November (6.9 days).

Average snowfall in September
Kirtley, KY

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

The month with the highest snowfall is February (0.63").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Kirtley, KY

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

The month with the highest number of snowfall days is January (3.7 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
Kirtley, KY

Average daylight in September / Average sunshine in September - Kirtley, 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 4min

The months with the most sunshine are June, July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in September
Kirtley, KY

Average sunshine days in September - Kirtley, KY
  • Average sunshine days in September: 18.3 days

The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (14.8 days).

Average UV index in September
Kirtley, KY

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

Average cloud cover in September
Kirtley, KY

Average cloud cover in September - Kirtley, KY
  • Average cloud cover in September: 31

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in September
Kirtley, KY

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

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

Kirtley, Kentucky, USA

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