September weather forecast
Damiansville, IL

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Weather in September

September, the first month of the autumn in Damiansville, is also a moderately hot month, with an average temperature fluctuating between 78.8°F (26°C) and 59.9°F (15.5°C).

Temperature

Damiansville experiences a minor change to a still warm 78.8°F (26°C) in average high-temperature during September, closely reflecting August. September nights in Damiansville cool down to an average low-temperature of 59.9°F (15.5°C).

Humidity

The average relative humidity in September in Damiansville is 75%.

Rainfall

In September, in Damiansville, the rain falls for 12 days. Throughout September, 1.77" (45mm) of precipitation is accumulated. Throughout the year, there are 151.1 rainfall days, and 30.43" (773mm) of precipitation is accumulated.

Snowfall

In Damiansville, snow does not fall in May through September.

Daylight

In Damiansville, the average length of the day in September is 12h and 25min.
On the first day of September in Damiansville, sunrise is at 6:28 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:42 pm CDT.

Sunshine

In September, the average sunshine in Damiansville, Illinois, is 9.3h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Damiansville in September?

The high-temperature, in September, in Damiansville, records 78.8°F (26°C), while the low-temperature is 59.9°F (15.5°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is estimated at 93.2°F (34°C).

What is the average humidity in September in Damiansville?

The average relative humidity in September in Damiansville, Illinois, is 75%.

How many days does it rain in September in Damiansville?

In Damiansville, during September, the rain falls for 12 days and regularly aggregates up to 1.77" (45mm) of precipitation.

When it does not snow in Damiansville?

May through September are months without snowfall in Damiansville, Illinois.

Does it snow in Damiansville in September?

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

What is the average length of the day in September in Damiansville?

The average day length in September in Damiansville is 12h and 25min.

When is the sunrise / sunset in September in Damiansville?

In September, on the first day of the month, sunrise is at 6:28 am and sunset at 7:28 pm. On the last day of the month, in Damiansville, sunrise is at 6:54 am and sunset at 6:42 pm CDT.

How long on average sun shines in September in Damiansville?

In September, the average sunshine duration in Damiansville is 9.3h.

What is the UV index intensity in September in Damiansville?

In September, the average daily maximum UV index in Damiansville is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Damiansville, IL

Average temperature in September - Damiansville, IL
  • Average high temperature in September: 78.8°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in September
Damiansville, IL

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Damiansville, IL

Average wind speed in September - Damiansville, IL
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in September
Damiansville, IL

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

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Damiansville, IL

Average rainfall in September - Damiansville, IL
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is February (1.5").

Average rainfall days in September
Damiansville, IL

Average rainfall days in September - Damiansville, IL
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (8 days).

Average snowfall in September
Damiansville, IL

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

The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Damiansville, IL

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

The month with the highest number of snowfall days is January (7.5 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
Damiansville, IL

Average daylight in September / Average sunshine in September - Damiansville, IL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

Average sunshine days in September
Damiansville, IL

Average sunshine days in September - Damiansville, IL
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (11 days).

Average UV index in September
Damiansville, IL

Average UV index in September - Damiansville, IL
  • Average UV index in September: 5

The months with the highest UV index are May, 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
Damiansville, IL

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

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in September
Damiansville, IL

Average visibility in September - Damiansville, 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).

Damiansville, Illinois, USA

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