September weather forecast
Crossville, IL

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Weather in September

September, the first month of the autumn in Crossville, is still a warm month, with an average temperature fluctuating between 60.8°F (16°C) and 79.2°F (26.2°C).

Temperature

Crossville, Illinois, experiences an average high-temperature of a still warm 79.2°F (26.2°C) in September, marking an insignificant shift from 84°F (28.9°C) in August. During September, the average low-temperature in Crossville is an enjoyable 60.8°F (16°C).

Humidity

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

Rainfall

September is the month with the least rainfall. Rain falls for 12.6 days and accumulates 1.97" (50mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 6:22 am and sunset at 7:21 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:36 pm CDT.

Sunshine

In Crossville, the average sunshine in September is 9.1h.

UV index

In Crossville, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Undertake precautions - It is suggested to shield oneself from sunburn. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

During September, Crossville experiences an average high-temperature of 79.2°F (26.2°C) and a low-temperature of 60.8°F (16°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in August is computed to be 93.2°F (34°C).

What is the average humidity in September in Crossville?

The average relative humidity in September in Crossville is 73%.

What is the driest month?

September is the month with the least rainfall in Crossville. Rain falls for 12.6 days and accumulates 1.97" (50mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 12.6 days. Throughout September, 1.97" (50mm) of precipitation is accumulated.

When it does not snow?

In Crossville, snow does not fall in May through October.

How many hours of daylight does Crossville have in September?

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

What time are sunrise and sunset in September?

On the first day of September in Crossville, sunrise is at 6:22 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:36 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9.1h.

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 hazard to health 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
Crossville, IL

Average temperature in September - Crossville, IL
  • Average high temperature in September: 79.2°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in September: 60.8°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in September
Crossville, IL

Average pressure in September - Crossville, 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
Crossville, IL

Average wind speed in September - Crossville, IL
  • Average wind speed in September: 6.8mph

The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).

Average humidity in September
Crossville, IL

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

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (69%).

Average rainfall in September
Crossville, IL

Average rainfall in September - Crossville, IL
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is April (5.2").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in September
Crossville, IL

Average rainfall days in September - Crossville, IL
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in September
Crossville, IL

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

The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Crossville, IL

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

The month with the highest number of snowfall days is January (6.6 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
Crossville, IL

Average daylight in September / Average sunshine in September - Crossville, IL
  • 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 36min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in September
Crossville, IL

Average sunshine days in September - Crossville, IL
  • Average sunshine days in September: 15 days

The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (8.8 days).

Average UV index in September
Crossville, IL

Average UV index in September - Crossville, 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, November and December (UV index 2).

Average cloud cover in September
Crossville, IL

Average cloud cover in September - Crossville, IL
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in September
Crossville, IL

Average visibility in September - Crossville, 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).

Crossville, Illinois, USA

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