September weather forecast
Lomax, IL

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Weather in September

The first month of the autumn, September, is still a warm month in Lomax, Illinois, with an average temperature ranging between min 57.2°F (14°C) and max 76.6°F (24.8°C).

Temperature

Lomax in September undergoes a slight reduction in the average high-temperature, shifting from August's warm 82°F (27.8°C) to a still moderately hot 76.6°F (24.8°C). Lomax experiences an average low-temperature of 57.2°F (14°C) in the month of September.

Humidity

In Lomax, the average relative humidity in September is 75%.

Rainfall

In Lomax, during September, the rain falls for 11 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, there are 137.6 rainfall days, and 26.65" (677mm) of precipitation is accumulated.

Snowfall

In Lomax, Illinois, snow does not fall in May through September.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:32 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:47 pm CDT.

Sunshine

In September, the average sunshine is 9.6h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily maximum UV index of 4 in September translates into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

In Lomax, 76.6°F (24.8°C) is the average high-temperature and 57.2°F (14°C) is the average low-temperature during September. In August, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What is the average humidity in September?

In September, the average relative humidity is 75%.

How much does it rain in September?

In Lomax, in September, it is raining for 11 days, with typically 2.13" (54mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

What is the average length of the day in September?

In Lomax, the average day length in September is 12h and 27min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:32 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:47 pm CDT.

How many hours of sunshine does Lomax have in September?

The average sunshine duration in September is 9.6h.

How high is the UV index in September?

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Lomax, IL

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

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in September: 57.2°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 (18°F).

Average pressure in September
Lomax, IL

Average pressure in September - Lomax, IL
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in September
Lomax, IL

Average wind speed in September - Lomax, IL
  • Average wind speed in September: 7.7mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

Average humidity in September
Lomax, IL

Average humidity in September - Lomax, IL
  • Average humidity in September: 75%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September
Lomax, IL

Average rainfall in September - Lomax, IL
  • Average rainfall in September: 2.13"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is December (1.3").

Average rainfall days in September
Lomax, IL

Average rainfall days in September - Lomax, IL
  • Average rainfall days in September: 11 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (5.2 days).

Average snowfall in September
Lomax, IL

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

The month with the highest snowfall is January (4.25").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Lomax, IL

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

The month with the highest number of snowfall days is January (9.8 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
Lomax, IL

Average daylight in September / Average sunshine in September - Lomax, 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 18min).

  • Average sunshine in September: 9h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in September
Lomax, IL

Average sunshine days in September - Lomax, IL
  • Average sunshine days in September: 17.3 days

The months with the most sunshine days are October and November (19.3 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in September
Lomax, IL

Average UV index in September - Lomax, IL
  • Average UV index in September: 4

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

Average cloud cover in September
Lomax, IL

Average cloud cover in September - Lomax, IL
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 29).

Average visibility in September
Lomax, IL

Average visibility in September - Lomax, 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).

Lomax, Illinois, USA

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