September weather forecast
Arcola, IN

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Weather in September

September, the first month of the autumn in Arcola, is still a warm month, with temperature in the range of an average high of 73.9°F (23.3°C) and an average low of 55.8°F (13.2°C).

Temperature

With the onset of September, Arcola's climate undergoes a slight change as the average high-temperature moves from a warm 79.3°F (26.3°C) in August to a still moderately hot 73.9°F (23.3°C). During the nights in September, an average low-temperature of 55.8°F (13.2°C) is observed.

Humidity

The average relative humidity in September in Arcola is 79%.

Rainfall

In Arcola, in September, it is raining for 11.2 days, with typically 1.1" (28mm) of accumulated precipitation. Throughout the year, there are 128.5 rainfall days, and 15" (381mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of September, sunrise is at 7:08 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 7:24 pm EDT.

Sunshine

In September, the average sunshine is 7.9h.

UV index

In Arcola, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 4 in September translates into these instructions:
Heed the precautions - It is counselled to guard against solar damage. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Arcola in September?

In Arcola, in September, the average high-temperature is 73.9°F (23.3°C), and the average low-temperature is 55.8°F (13.2°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is estimated at 86°F (30°C).

What is the average humidity in September?

In Arcola, the average relative humidity in September is 79%.

How much does it rain in September?

In September, the rain falls for 11.2 days. Throughout September, 1.1" (28mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

What is the average length of the day in September?

The average day length in September in Arcola is 12h and 28min.

When are sunrise and sunset in September in Arcola?

On the first day of September, sunrise is at 7:08 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 7:24 pm EDT.

How many hours of sunshine does Arcola have in September?

In September, the average sunshine duration is 7.9h.

What is the UV index reading in September in Arcola?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health risk 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
Arcola, IN

Average temperature in September - Arcola, IN
  • Average high temperature in September: 73.9°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in September: 55.8°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

Average pressure in September
Arcola, IN

Average pressure in September - Arcola, IN
  • Average pressure in September: 30.04"Hg

The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Arcola, IN

Average wind speed in September - Arcola, IN
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in September
Arcola, IN

Average humidity in September - Arcola, IN
  • Average humidity in September: 79%

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

Average rainfall in September
Arcola, IN

Average rainfall in September - Arcola, IN
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is May (1.89").
The driest month (with the least rainfall) is February (0.79").

Average rainfall days in September
Arcola, IN

Average rainfall days in September - Arcola, IN
  • Average rainfall days in September: 11.2 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (5.4 days).

Average snowfall in September
Arcola, IN

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

The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Arcola, IN

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

The month with the highest number of snowfall days is January (9.5 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
Arcola, IN

Average daylight in September / Average sunshine in September - Arcola, IN
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days in September
Arcola, IN

Average sunshine days in September - Arcola, IN
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (12.5 days).

Average UV index in September
Arcola, IN

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

The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in September
Arcola, IN

Average cloud cover in September - Arcola, IN
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in September
Arcola, IN

Average visibility in September - Arcola, IN
  • 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).

Arcola, Indiana, USA

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