September weather forecast
Golconda, IL

englishespañol中文
Share

Weather in September

The first month of the autumn, September, is also a moderately hot month in Golconda, Illinois, with temperature in the range of an average high of 81.5°F (27.5°C) and an average low of 61.7°F (16.5°C).

Temperature

September's onset sees an average high-temperature of a moderately hot 81.5°F (27.5°C), exhibiting a slight fluctuation from the previous month. In Golconda, an average low-temperature of 61.7°F (16.5°C) is recorded during September nights.

Heat index

Throughout September, the heat index is appraised at a hot 86°F (30°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

In Golconda, the average relative humidity in September is 72%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.1 days and typically collects 1.5" (38mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Golconda, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:22 pm. On the last day of September, sunrise is at 6:49 am and sunset at 6:38 pm CDT.

Sunshine

The average sunshine in September in Golconda is 9.6h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the UV index of 5 transforms into the following advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

What is the usual temperature for Golconda in September?

The average high-temperature and low-temperature during September are 81.5°F (27.5°C) and 61.7°F (16.5°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is appraised at 86°F (30°C).

What is the average humidity in September?

In September, the average relative humidity is 72%.

What is the driest month in Golconda?

September is the month with the least rainfall. Rain falls for 11.1 days and accumulates 1.5" (38mm) of precipitation.

How many days does it rain in September?

In Golconda, during September, the rain falls for 11.1 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow?

In Golconda, Illinois, snow does not fall in May through October.

How many hours of daylight does Golconda have in September?

In September, the average day length is 12h and 25min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:25 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:38 pm CDT.

How long on average sun shines in September?

In Golconda, the average sunshine duration in September is 9.6h.

What is the UV index reading in September?

The average daily maximum UV index in September in Golconda is 5. A UV Index estimate of 3 to 5 represents 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
Golconda, IL

Average temperature in September - Golconda, IL
  • Average high temperature in September: 81.5°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.4°F).

  • Average low temperature in September: 61.7°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28°F).

Average pressure in September
Golconda, IL

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Golconda, IL

Average wind speed in September - Golconda, IL
  • Average wind speed in September: 6.3mph

The windiest months (with the highest average wind speed) are January, March and April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

Average humidity in September
Golconda, IL

Average humidity in September - Golconda, IL
  • Average humidity in September: 72%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September
Golconda, IL

Average rainfall in September - Golconda, IL
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in September
Golconda, IL

Average rainfall days in September - Golconda, IL
  • Average rainfall days in September: 11.1 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is October (10.2 days).

Average snowfall in September
Golconda, IL

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

The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Golconda, IL

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

The month with the highest number of snowfall days is January (4.3 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
Golconda, IL

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 9h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in September
Golconda, IL

Average sunshine days in September - Golconda, IL
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is May (11 days).

Average UV index in September
Golconda, IL

Average UV index in September - Golconda, 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 and December (UV index 2).

Average cloud cover in September
Golconda, IL

Average cloud cover in September - Golconda, IL
  • Average cloud cover in September: 26

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 26).

Average visibility in September
Golconda, IL

Average visibility in September - Golconda, 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).

Golconda, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location