September weather forecast
Franklin Park, IL

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Weather in September

September, the first month of the autumn in Franklin Park, is still a warm month, with an average temperature ranging between min 59.5°F (15.3°C) and max 73.4°F (23°C).

Temperature

Franklin Park's progression into September involves a gentle drop in the average high-temperature, from a moderately hot 80.1°F (26.7°C) in August to a still warm 73.4°F (23°C). Throughout September, the average low-temperature in Franklin Park records at a mild 59.5°F (15.3°C).

Humidity

In Franklin Park, the average relative humidity in September is 74%.

Rainfall

In September, in Franklin Park, the rain falls for 13.5 days. Throughout September, 1.97" (50mm) of precipitation is accumulated. Throughout the year, there are 146.5 rainfall days, and 24.13" (613mm) of precipitation is accumulated.

Snowfall

In Franklin Park, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of the month, sunrise is at 6:18 am and sunset at 7:24 pm. On the last day of September, in Franklin Park, sunrise is at 6:48 am and sunset at 6:34 pm CDT.

Sunshine

In Franklin Park, the average sunshine in September is 8.8h.

UV index

In Franklin Park, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

What are September temperatures in Franklin Park?

During September, Franklin Park experiences an average high-temperature of 73.4°F (23°C) and a low-temperature of 59.5°F (15.3°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in July is computed to be 86°F (30°C).

What is the average humidity in September in Franklin Park?

In Franklin Park, the average relative humidity in September is 74%.

How much does it rain in Franklin Park in September?

In September, in Franklin Park, Illinois, the rain falls for 13.5 days. Throughout September, 1.97" (50mm) of precipitation is accumulated.

When it does not snow in Franklin Park?

In Franklin Park, Illinois, snow does not fall in June through September.

Does it snow in Franklin Park in September?

In Franklin Park, Illinois, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Franklin Park?

In Franklin Park, the average day length in September is 12h and 28min.

What time are sunrise and sunset in September in Franklin Park?

On the first day of September in Franklin Park, Illinois, sunrise is at 6:18 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:34 pm CDT.

How long on average sun shines in September in Franklin Park?

In Franklin Park, the average sunshine duration in September is 8.8h.

What is the UV index reading in September in Franklin Park?

In September, the average daily maximum UV index in Franklin Park is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's 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
Franklin Park, IL

Average temperature in September - Franklin Park, IL
  • Average high temperature in September: 73.4°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in September: 59.5°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).

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Average pressure in September
Franklin Park, IL

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in September
Franklin Park, IL

Average wind speed in September - Franklin Park, IL
  • Average wind speed in September: 7.8mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in September
Franklin Park, IL

Average humidity in September - Franklin Park, IL
  • Average humidity in September: 74%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in September
Franklin Park, IL

Average rainfall in September - Franklin Park, IL
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is December (0.91").

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Average rainfall days in September
Franklin Park, IL

Average rainfall days in September - Franklin Park, IL
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is February (5.3 days).

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Average snowfall in September
Franklin Park, IL

Average snowfall in September - Franklin Park, IL
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.39").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Franklin Park, IL

Average snowfall days in September - Franklin Park, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Franklin Park, IL

Average daylight in September / Average sunshine in September - Franklin Park, IL
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in September
Franklin Park, IL

Average sunshine days in September - Franklin Park, IL
  • Average sunshine days in September: 13.2 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (10.3 days).

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Average UV index in September
Franklin Park, IL

Average UV index in September - Franklin Park, IL
  • Average UV index in September: 4

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

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Average cloud cover in September
Franklin Park, IL

Average cloud cover in September - Franklin Park, IL
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 30).

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Average visibility in September
Franklin Park, IL

Average visibility in September - Franklin Park, 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).

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Franklin Park, Illinois, USA

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