September weather forecast
Lake Fork, IL

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Weather in September

September, the first month of the autumn in Lake Fork, is also a moderately hot month, with an average temperature ranging between min 58.5°F (14.7°C) and max 77°F (25°C).

Temperature

In September, Lake Fork notes an average high-temperature of a still moderately hot 77°F (25°C), hardly different from the preceding month. An average minimum temperature of 58.5°F (14.7°C) marks the month of September in Lake Fork.

Humidity

The average relative humidity in September in Lake Fork is 76%.

Rainfall

In September, the rain falls for 11.8 days. Throughout September, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 141.8 rainfall days, and 22.24" (565mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Lake Fork, Illinois.

Daylight

In Lake Fork, the average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:25 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:40 pm CDT.

Sunshine

In Lake Fork, the average sunshine in September is 9h.

UV index

In Lake Fork, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: An average UV index of 5 in September transforms into this advice:
Undertake precautions - Guarding against sun damage is counselled. Around midday, solar radiation is most harmful; hence, exposure should be limited. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

What is the average September temperature in Lake Fork?

During September, Lake Fork experiences an average high-temperature of 77°F (25°C) and a low-temperature of 58.5°F (14.7°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in September in Lake Fork?

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

How many days does it rain in September in Lake Fork?

In Lake Fork, Illinois, in September, during 11.8 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

When it does not snow in Lake Fork?

May through October are months without snowfall in Lake Fork.

What is the average length of the day in September in Lake Fork?

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

What time are sunrise and sunset in September in Lake Fork?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:28 pm. On the last day of the month, in Lake Fork, Illinois, sunrise is at 6:53 am and sunset at 6:40 pm CDT.

How long on average sun shines in September in Lake Fork?

In Lake Fork, Illinois, the average sunshine duration in September is 9h.

How high is the UV index in September in Lake Fork?

In Lake Fork, Illinois, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Lake Fork, IL

Average temperature in September - Lake Fork, IL
  • Average high temperature in September: 77°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in September: 58.5°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure in September
Lake Fork, IL

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in September
Lake Fork, IL

Average wind speed in September - Lake Fork, IL
  • Average wind speed in September: 7.3mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

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Average humidity in September
Lake Fork, IL

Average humidity in September - Lake Fork, IL
  • Average humidity in September: 76%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
Lake Fork, IL

Average rainfall in September - Lake Fork, IL
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is December (1.1").

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Average rainfall days in September
Lake Fork, IL

Average rainfall days in September - Lake Fork, IL
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and February (6.3 days).

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Average snowfall in September
Lake Fork, IL

Average snowfall in September - Lake Fork, IL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Lake Fork, IL

Average snowfall days in September - Lake Fork, IL
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are May, June, July and August (0 days).

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Average daylight in September /
Average sunshine in September
Lake Fork, IL

Average daylight in September / Average sunshine in September - Lake Fork, 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 0min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in September
Lake Fork, IL

Average sunshine days in September - Lake Fork, IL
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index in September
Lake Fork, IL

Average UV index in September - Lake Fork, IL
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in September
Lake Fork, IL

Average cloud cover in September - Lake Fork, IL
  • Average cloud cover in September: 31

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are June and September (Cloud cover 31).

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Average visibility in September
Lake Fork, IL

Average visibility in September - Lake Fork, 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).

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Lake Fork, Illinois, USA

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