September weather forecast
Lexington, IN

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Weather in September

The first month of the autumn, September, is still a warm month in Lexington, Indiana, with an average temperature fluctuating between 59°F (15°C) and 78.3°F (25.7°C).

Temperature

September brings a slight decrease in temperature, down from 84.7°F (29.3°C) in August to a still moderately hot 78.3°F (25.7°C). Nighttime temperatures hover around an average low of 59°F (15°C) in September.

Humidity

In September, the average relative humidity in Lexington is 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13.1 days and typically collects 1.69" (43mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

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

Sunshine

The average sunshine in September in Lexington, Indiana, is 8.3h.

UV index

In September, the average daily maximum UV index in Lexington is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 5 during September translates into the following directions:
Ensure safety - Recommendations to avert sunburn are presented. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

What is the average September temperature in Lexington?

In September, the average high-temperature and low-temperature in Lexington are 78.3°F (25.7°C) and 59°F (15°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is evaluated at 95°F (35°C).

What is the average humidity in September in Lexington?

In Lexington, the average relative humidity in September is 75%.

What is the driest month in Lexington?

September is the month with the least rainfall in Lexington. Rain falls for 13.1 days and accumulates 1.69" (43mm) of precipitation.

How many days does it rain in September in Lexington?

In Lexington, Indiana, in September, it is raining for 13.1 days, with typically 1.69" (43mm) of accumulated precipitation.

When it does not snow in Lexington?

In Lexington, Indiana, snow does not fall in May through September.

Does it snow in Lexington in September?

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

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

The average day length in September in Lexington, Indiana, is 12h and 25min.

When is the sunrise / sunset in September in Lexington?

In September, on the first day of the month, sunrise is at 7:12 am and sunset at 8:12 pm. On the last day of the month, in Lexington, Indiana, sunrise is at 7:38 am and sunset at 7:26 pm EDT.

How many hours of sunshine does Lexington have in September?

In September, the average sunshine duration in Lexington, Indiana, is 8.3h.

What is the UV index reading in September in Lexington?

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Lexington, IN

Average temperature in September - Lexington, IN
  • 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 (37.2°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 (24.3°F).

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Average pressure in September
Lexington, IN

Average pressure in September - Lexington, IN
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Lexington, IN

Average wind speed in September - Lexington, IN
  • Average wind speed in September: 5.5mph

The windiest months (with the highest average wind speed) are January and February (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).

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Average humidity in September
Lexington, IN

Average humidity in September - Lexington, IN
  • Average humidity in September: 75%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Lexington, IN

Average rainfall in September - Lexington, IN
  • Average rainfall in September: 1.69"

The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is September (1.69").

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Average rainfall days in September
Lexington, IN

Average rainfall days in September - Lexington, IN
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (9.5 days).

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Average snowfall in September
Lexington, IN

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

The month with the highest snowfall is February (2.72").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Lexington, IN

Average snowfall days in September - Lexington, IN
  • 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
Lexington, IN

Average daylight in September / Average sunshine in September - Lexington, IN
  • 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 30min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (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
Lexington, IN

Average sunshine days in September - Lexington, IN
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is May (10 days).

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Average UV index in September
Lexington, IN

Average UV index in September - Lexington, IN
  • 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
Lexington, IN

Average cloud cover in September - Lexington, IN
  • 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
Lexington, IN

Average visibility in September - Lexington, IN
  • Average visibility in September: 6mi

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

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Lexington, Indiana, USA

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