September weather forecast
Evansville, IN

Weather in September

The first month of the autumn, September, is still a warm month in Evansville, Indiana, with temperature in the range of an average high of 79.2°F (26.2°C) and an average low of 60.8°F (16°C).

Temperature

In Evansville, the average high-temperature is relatively the same as in August - a still moderately hot 79.2°F (26.2°C). In September, in Evansville, Indiana, the average low-temperature is 60.8°F (16°C).

Humidity

In September, the average relative humidity is 73%.

Rainfall

The month with the least rainfall in Evansville is September when the rain falls for 11.5 days and typically collects 1.26" (32mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

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

Sunshine

In Evansville, the average sunshine is 8.9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.
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FAQ

What is the average humidity in September in Evansville?

In Evansville, the average relative humidity in September is 73%.

What is the driest month in Evansville?

September is the month with the least rainfall in Evansville, Indiana. Rain falls for 11.5 days and accumulates 1.26" (32mm) of precipitation.

How many days does it rain in September in Evansville?

In Evansville, Indiana, in September, during 11.5 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

When it does not snow in Evansville?

May through October are months without snowfall.

How many hours of daylight does Evansville have in September?

In Evansville, Indiana, the average length of the day in September is 12.4h.

How long on average sun shines in September in Evansville?

In September, the average sunshine in Evansville is 8.9h.

What is the UV index intensity in September in Evansville?

In Evansville, Indiana, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.

Average temperature in September
Evansville, IN

Average temperature in September - Evansville, IN
  • Average high temperature in September: 79.2°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 60.8°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

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Average pressure in September
Evansville, IN

Average pressure in September - Evansville, IN
  • Average pressure in September: 30.03"

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

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Average wind speed in September
Evansville, IN

Average wind speed in September - Evansville, IN
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is February (9.9mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

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Average humidity in September
Evansville, IN

Average humidity in September - Evansville, IN
  • Average humidity in September: 73%

Months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
Evansville, IN

Average rainfall in September - Evansville, IN
  • Average rainfall in September: 1.26"

The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is September (1.26").

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Average rainfall days in September
Evansville, IN

Average rainfall days in September - Evansville, IN
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is November (9.1 days).

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Average snowfall in September
Evansville, IN

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

The month with the highest snowfall is January (1.42").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Evansville, IN

Average snowfall days in September - Evansville, IN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (5.7 days).
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
Evansville, IN

Average daylight in September / Average sunshine in September - Evansville, IN
  • Average daylight in September: 12.4h

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

  • Average sunshine in September: 8.9h

Months with the most sunshine are June and July (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4.3h).

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Average sunshine days in September
Evansville, IN

Average sunshine days in September - Evansville, IN
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is May (10.5 days).

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Average UV index in September
Evansville, IN

Average UV index in September - Evansville, IN
  • Average UV index in September: 5

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

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Average cloud cover in September
Evansville, IN

Average cloud cover in September - Evansville, IN
  • Average cloud cover in September: 30

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

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Average visibility in September
Evansville, IN

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

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

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