September weather forecast
Ridge Farm, IL

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Weather in September

The first month of the autumn, September, is still a warm month in Ridge Farm, Illinois, with an average temperature fluctuating between 76.6°F (24.8°C) and 58.1°F (14.5°C).

Temperature

Ridge Farm's average high-temperature marks a still warm 76.6°F (24.8°C) with the advent of September, closely mirroring that of the preceding month. Throughout the September nights, Ridge Farm encounters a low-temperature of 58.1°F (14.5°C).

Humidity

The average relative humidity in September is 77%.

Rainfall

In Ridge Farm, in September, it is raining for 10.5 days, with typically 1.22" (31mm) of accumulated precipitation. In Ridge Farm, Illinois, during the entire year, the rain falls for 146.1 days and collects up to 21.02" (534mm) of precipitation.

Snowfall

In Ridge Farm, snow does not fall in May through October.

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 6:34 pm CDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, an average UV index of 5 transforms into the following instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

In September, in Ridge Farm, the average high-temperature is 76.6°F (24.8°C), and the average low-temperature is 58.1°F (14.5°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 87.8°F (31°C).

What is the average humidity in September?

In September, the average relative humidity is 77%.

How much does it rain in September?

In September, the rain falls for 10.5 days. Throughout September, 1.22" (31mm) of precipitation is accumulated.

When it does not snow?

In Ridge Farm, snow does not fall in May through October.

How many hours of daylight does Ridge Farm have in September?

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

What time are sunrise and sunset in September?

On the first day of September, 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 6:34 pm CDT.

How long on average sun shines in September in Ridge Farm?

The average sunshine duration in September is 8.5h.

What is the UV index reading in September?

In Ridge Farm, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from 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
Ridge Farm, IL

Average temperature in September - Ridge Farm, IL
  • Average high temperature in September: 76.6°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in September: 58.1°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in September
Ridge Farm, IL

Average pressure in September - Ridge Farm, 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
Ridge Farm, IL

Average wind speed in September - Ridge Farm, 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 months (with the lowest average wind speed) are July and August (6mph).

Average humidity in September
Ridge Farm, IL

Average humidity in September - Ridge Farm, IL
  • Average humidity in September: 77%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Ridge Farm, IL

Average rainfall in September - Ridge Farm, IL
  • Average rainfall in September: 1.22"

The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is November (1.02").

Average rainfall days in September
Ridge Farm, IL

Average rainfall days in September - Ridge Farm, IL
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (7.4 days).

Average snowfall in September
Ridge Farm, IL

Average snowfall in September - Ridge Farm, IL
  • Average snowfall in September: 0"

The month with the highest snowfall is December (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Ridge Farm, IL

Average snowfall days in September - Ridge Farm, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Ridge Farm, IL

Average daylight in September / Average sunshine in September - Ridge Farm, 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 3min

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

Average sunshine days in September
Ridge Farm, IL

Average sunshine days in September - Ridge Farm, IL
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (10 days).

Average UV index in September
Ridge Farm, IL

Average UV index in September - Ridge Farm, 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
Ridge Farm, IL

Average cloud cover in September - Ridge Farm, IL
  • Average cloud cover in September: 31

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are June, August and September (Cloud cover 31).

Average visibility in September
Ridge Farm, IL

Average visibility in September - Ridge Farm, 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).

Ridge Farm, Illinois, USA

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