September weather forecast
Anderson, IN

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Weather in September

September heralds the transition from summer to autumn in Anderson. While the temperatures start to cool down, it does not dampen the enthusiasm for outdoor activities. Bicycle rides become increasingly common as the heat subsides, providing a reprieve to those not keen on too much sunshine. Autumn leaves start to make their debut towards the end of the month, providing a mesmerizing view. Regular rainfall ensures the foliage flaunts vibrant colors, offering spectacular views.

Temperature

Anderson's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's warm 80.1°F to a still moderately hot 74.5°F. Anderson records a mean low-temperature of 57.4°F in September.

Humidity

In September, the average relative humidity in Anderson is 78%.

Rainfall

In Anderson, in September, it is raining for 12.4 days, with typically 1.38" of accumulated precipitation. In Anderson, during the entire year, the rain falls for 142.1 days and collects up to 20.91" of precipitation.

Snowfall

In Anderson, snow does not fall in May through September.

Daylight

In Anderson, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 7:10 am and sunset at 8:15 pm. On the last day of September, sunrise is at 7:38 am and sunset at 7:27 pm EDT.

Sunshine

In Anderson, the average sunshine in September is 8.2h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 4 in September translates into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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FAQ

What is the temperature in September in Anderson?

In Anderson, 74.5°F is the average high-temperature and 57.4°F is the average low-temperature during September. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in July is appraised at 87.8°F.

What is the average humidity in September in Anderson?

The average relative humidity in September in Anderson, Indiana, is 78%.

How much does it rain in Anderson in September?

In September, the rain falls for 12.4 days. Throughout September, 1.38" of precipitation is accumulated.

When it does not snow in Anderson?

May through September are months without snowfall in Anderson.

Does it snow in Anderson in September?

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

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

In Anderson, Indiana, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September in Anderson?

In September, on the first day of the month, sunrise is at 7:10 am and sunset at 8:15 pm. On the last day of the month, in Anderson, sunrise is at 7:38 am and sunset at 7:27 pm EDT.

How many hours of sunshine does Anderson have in September?

In September, the average sunshine duration in Anderson, Indiana, is 8.2h.

How high is the UV index in September in Anderson?

In September, the average daily maximum UV index in Anderson is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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
Anderson, IN

Average temperature in September - Anderson, IN
  • Average high temperature in September: 74.5°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in September: 57.4°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure in September
Anderson, IN

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Anderson, IN

Average wind speed in September - Anderson, IN
  • Average wind speed in September: 6.7mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in September
Anderson, IN

Average humidity in September - Anderson, IN
  • Average humidity in September: 78%

The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Anderson, IN

Average rainfall in September - Anderson, IN
  • Average rainfall in September: 1.38"

The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are February and November (1.14").

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Average rainfall days in September
Anderson, IN

Average rainfall days in September - Anderson, IN
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (6.1 days).

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Average snowfall in September
Anderson, IN

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

The months with the highest snowfall are February and December (2.17").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Anderson, IN

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

The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Anderson, IN

Average daylight in September / Average sunshine in September - Anderson, IN
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in September
Anderson, IN

Average sunshine days in September - Anderson, IN
  • Average sunshine days in September: 15 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).

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Average UV index in September
Anderson, IN

Average UV index in September - Anderson, IN
  • Average UV index in September: 4

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, October, November and December (UV index 2).

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Average cloud cover in September
Anderson, IN

Average cloud cover in September - Anderson, IN
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are June, July and August (Cloud cover 32).

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Average visibility in September
Anderson, IN

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

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

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Anderson, Indiana, USA

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