September weather forecast
Ozark, IL

Share

Weather in September

September, the first month of the autumn in Ozark, is also a moderately hot month, with an average temperature varying between 81.1°F (27.3°C) and 60.6°F (15.9°C).

Temperature

September heralds a minor drop in average high-temperature, sliding from August's tropical 86.5°F (30.3°C) to a warm 81.1°F (27.3°C). Ozark experiences a mean low-temperature of 60.6°F (15.9°C) during September.

Heat index

September's average heat index is calculated to be a hot 86°F (30°C). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.
Realize that the values for the heat index are set for shaded places and light winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

In September, the average relative humidity is 73%.

Rainfall

The month with the least rainfall is September, when the rain falls for 8.3 days and typically collects 0.47" (12mm) of precipitation.

Snowfall

In Ozark, snow does not fall in April through October.

Daylight

In Ozark, the average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 6:25 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:39 pm CDT.

Sunshine

In Ozark, the average sunshine in September is 9.4h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 5 in September translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

What are the temperatures in September?

In September, the average high-temperature and low-temperature are 81.1°F (27.3°C) and 60.6°F (15.9°C) respectively. In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is calculated to be 86°F (30°C).

What is the average humidity in September in Ozark?

The average relative humidity in September is 73%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 8.3 days and accumulates 0.47" (12mm) of precipitation.

How many days does it rain in September?

In Ozark, during September, the rain falls for 8.3 days and regularly aggregates up to 0.47" (12mm) of precipitation.

When it does not snow?

April through October are months without snowfall.

How many hours of daylight does Ozark have in September?

In September, the average day length is 12h and 25min.

What time are sunrise and sunset in September in Ozark?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:39 pm CDT.

How long on average sun shines in September?

In Ozark, the average sunshine duration in September is 9.4h.

How high is the UV index in September?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
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
Ozark, IL

Average temperature in September - Ozark, IL
  • Average high temperature in September: 81.1°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in September: 60.6°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in September
Ozark, IL

Average pressure in September - Ozark, IL
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Ozark, IL

Average wind speed in September - Ozark, IL
  • Average wind speed in September: 6.3mph

The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in September
Ozark, IL

Average humidity in September - Ozark, IL
  • Average humidity in September: 73%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Ozark, IL

Average rainfall in September - Ozark, IL
  • Average rainfall in September: 0.47"

The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").

Average rainfall days in September
Ozark, IL

Average rainfall days in September - Ozark, IL
  • Average rainfall days in September: 8.3 days

The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).

Average snowfall in September
Ozark, IL

Average snowfall in September - Ozark, IL
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Ozark, IL

Average snowfall days in September - Ozark, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.3 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
Ozark, IL

Average daylight in September / Average sunshine in September - Ozark, IL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 9h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

Average sunshine days in September
Ozark, IL

Average sunshine days in September - Ozark, IL
  • Average sunshine days in September: 19.1 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).

Average UV index in September
Ozark, IL

Average UV index in September - Ozark, IL
  • Average UV index in September: 5

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

Average cloud cover in September
Ozark, IL

Average cloud cover in September - Ozark, IL
  • Average cloud cover in September: 28

The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).

Average visibility in September
Ozark, IL

Average visibility in September - Ozark, IL
  • 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).

Ozark, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location