Lexington
Kentucky, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Lexington, KY

A sunset view of the ancient buildings in Lexington, Kentucky
A sunset view of the ancient buildings in Lexington, Kentucky
The first month of the autumn, September, is also a moderately hot month in Lexington, Kentucky, with average temperature ranging between max 78.1°F (25.6°C) and min 59°F (15°C).

Temperature

In Lexington, the average high-temperature marginally drops, from 84°F (28.9°C) in August, to a still moderately hot 78.1°F (25.6°C). In September, the average low-temperature is 59°F (15°C).

Humidity

The average relative humidity in September is 76%.

Rainfall

The month with the least rainfall in Lexington is September when the rain falls for 13.7 days and typically collects 2.32" (59mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Lexington, the average length of the day is 12.4h.

Sunshine

In Lexington, the average sunshine is 8.1h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Lexington?

In Lexington, Kentucky, in September, the average high-temperature is 78.1°F (25.6°C), and the average low-temperature is 59°F (15°C).

What is the average humidity in September in Lexington?

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

How much does it rain in Lexington in September?

In Lexington, in September, it is raining for 13.7 days, with typically 2.32" (59mm) of accumulated precipitation.

What is the driest month in Lexington?

September is the month with the least rainfall. Rain falls for 13.7 days and accumulates 2.32" (59mm) of precipitation.

Does it snow in Lexington in September?

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

When it does not snow in Lexington?

May through September are months without snowfall in Lexington.

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

The average length of the day in September in Lexington is 12.4h.

How many hours of sunshine does Lexington have in September?

In Lexington, the average sunshine in September is 8.1h.

How high is the UV index in September in Lexington?

In Lexington, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.
Average temperature in September - Lexington, KY
  • Average high temperature in September: 78.1°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in September: 59°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average humidity in September - Lexington, 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 - Lexington, KY
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the lowest rainfall) is September (2.32").

Average rainfall days in September - Lexington, KY
  • Average rainfall days in September: 13.7 days

The month with the highest number of rainy days is July (18.3 days).
The month with the lowest number of rainy days is November (10.3 days).

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

The month with the highest snowfall is February (3.07").
Months with the lowest snowfall are May, June, July, August and September (0").

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

The month with the highest number of snowfall days is January (9.7 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Lexington, KY
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.6h).

  • Average sunshine in September: 8.1h

The month with most sunshine is June (Average sunshine: 10h).
The month with least sunshine is January (Average sunshine: 3.9h).

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

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).