September weather forecast
Lane, IL

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Lane, Illinois, with an average temperature fluctuating between 58.3°F (14.6°C) and 76.3°F (24.6°C).

Temperature

The commencement of September records an average high-temperature of a still warm 76.3°F (24.6°C), barely varying from August's 81°F (27.2°C). Lane observes an average nighttime low-temperature of 58.3°F (14.6°C) during the month of September.

Humidity

The average relative humidity in September is 76%.

Rainfall

In Lane, in September, it is raining for 13.4 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, there are 165.4 rainfall days, and 33.78" (858mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Lane, the average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:23 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:38 pm CDT.

Sunshine

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

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 5 in September translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The high-temperature, in September, in Lane, is 76.3°F (24.6°C), while the low-temperature averages to 58.3°F (14.6°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 87.8°F (31°C).

What is the average humidity in September?

In Lane, Illinois, the average relative humidity in September is 76%.

How much does it rain in September?

In Lane, Illinois, during September, the rain falls for 13.4 days and regularly aggregates up to 2.24" (57mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

What is the average length of the day in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:23 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:38 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.1h.

What is the UV index intensity in September?

In Lane, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health risk 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
Lane, IL

Average temperature in September - Lane, IL
  • Average high temperature in September: 76.3°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 (31.8°F).

  • Average low temperature in September: 58.3°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

Average pressure in September
Lane, IL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Lane, IL

Average wind speed in September - Lane, IL
  • Average wind speed in September: 7.5mph

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in September
Lane, IL

Average humidity in September - Lane, IL
  • Average humidity in September: 76%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September
Lane, IL

Average rainfall in September - Lane, IL
  • Average rainfall in September: 2.24"

The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is December (1.89").

Average rainfall days in September
Lane, IL

Average rainfall days in September - Lane, IL
  • Average rainfall days in September: 13.4 days

The months with the highest number of rainy days are May and July (20.2 days).
The month with the least rainy days is February (6.8 days).

Average snowfall in September
Lane, IL

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

The month with the highest snowfall is January (4.49").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Lane, IL

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

The month with the highest number of snowfall days is January (12 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
Lane, IL

Average daylight in September / Average sunshine in September - Lane, IL
  • 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: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in September
Lane, IL

Average sunshine days in September - Lane, IL
  • Average sunshine days in September: 13.8 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (7.3 days).

Average UV index in September
Lane, IL

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

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, November and December (UV index 2).

Average cloud cover in September
Lane, IL

Average cloud cover in September - Lane, IL
  • Average cloud cover in September: 31

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 31).

Average visibility in September
Lane, IL

Average visibility in September - Lane, IL
  • Average visibility in September: 6mi

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

Lane, Illinois, USA

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