September weather forecast
Tilton, IL

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Weather in September

September, the first month of the autumn in Tilton, is still a warm month, with temperature in the range of an average high of 76.1°F (24.5°C) and an average low of 57.7°F (14.3°C).

Temperature

In Tilton, September's average high-temperature stands at a still moderately hot 76.1°F (24.5°C), closely related to the preceding month. Nighttime temperatures in September average to a moderate 57.7°F (14.3°C).

Humidity

In Tilton, the average relative humidity in September is 77%.

Rainfall

The months with the least rainfall in Tilton are February and September Rain falls for 12.5 days and accumulates 1.38" (35mm) of rain.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:19 am and sunset at 7:21 pm. On the last day of September, sunrise is at 6:46 am and sunset at 6:33 pm CDT.

Sunshine

The average sunshine in September is 8.8h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Jul 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

The average high-temperature and low-temperature during September are 76.1°F (24.5°C) and 57.7°F (14.3°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 86°F (30°C).

What is the average humidity in September in Tilton?

In Tilton, the average relative humidity in September is 77%.

What is the driest month?

February and September are months with the least rain when the rain falls for 12.5 days and typically aggregates up to 1.38" (35mm) of rain.

How much does it rain in September?

In Tilton, during September, the rain falls for 12.5 days and regularly aggregates up to 1.38" (35mm) of precipitation.

When it does not snow?

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

What is the average length of the day in September?

The average day length in September is 12h and 26min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:19 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:33 pm CDT.

How many hours of sunshine does Tilton have in September?

In September, the average sunshine duration is 8.8h.

How high is the UV index in September?

The average daily maximum UV index in September in Tilton, Illinois, is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Tilton, IL

Average temperature in September - Tilton, IL
  • Average high temperature in September: 76.1°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 (31.6°F).

  • Average low temperature in September: 57.7°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure in September
Tilton, IL

Average pressure in September - Tilton, 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 (29.93"Hg).

Average wind speed in September
Tilton, IL

Average wind speed in September - Tilton, IL
  • Average wind speed in September: 7.1mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in September
Tilton, IL

Average humidity in September - Tilton, IL
  • Average humidity in September: 77%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Tilton, IL

Average rainfall in September - Tilton, IL
  • Average rainfall in September: 1.38"

The wettest month (with the highest rainfall) is April (3.23").
The driest months (with the least rainfall) are February and September (1.38").

Average rainfall days in September
Tilton, IL

Average rainfall days in September - Tilton, IL
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (6.6 days).

Average snowfall in September
Tilton, IL

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

The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Tilton, IL

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

The month with the highest number of snowfall days is January (10.6 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
Tilton, IL

Average daylight in September / Average sunshine in September - Tilton, 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: 8h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in September
Tilton, IL

Average sunshine days in September - Tilton, IL
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in September
Tilton, IL

Average UV index in September - Tilton, 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
Tilton, IL

Average cloud cover in September - Tilton, IL
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).

Average visibility in September
Tilton, IL

Average visibility in September - Tilton, 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).

Tilton, Illinois, USA

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