September weather forecast
Dalton City, IL

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Dalton City, Illinois, with an average temperature varying between 58.5°F (14.7°C) and 77°F (25°C).

Temperature

The average high-temperature is a still warm 77°F (25°C) in September, hardly different from the 81.1°F (27.3°C) recorded in August. Dalton City reports a consistent average low-temperature of 58.5°F (14.7°C) throughout September nights.

Humidity

The average relative humidity in September in Dalton City is 76%.

Rainfall

In Dalton City, during September, the rain falls for 10.6 days and regularly aggregates up to 1.18" (30mm) of precipitation. Throughout the year, there are 130.2 rainfall days, and 16.34" (415mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:24 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:38 pm CDT.

Sunshine

The average sunshine in September is 9.2h.

UV index

In Dalton City, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

What is the average September temperature?

During September, Dalton City experiences an average high-temperature of 77°F (25°C) and a low-temperature of 58.5°F (14.7°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in August is computed to be 87.8°F (31°C).

What is the average humidity in September?

In Dalton City, the average relative humidity in September is 76%.

How many days does it rain in September?

In September, the rain falls for 10.6 days. Throughout September, 1.18" (30mm) of precipitation is accumulated.

When it does not snow?

In Dalton City, snow does not fall in May through October.

How many hours of daylight does Dalton City have in September?

In Dalton City, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:24 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:38 pm CDT.

How many hours of sunshine does Dalton City have in September?

In September, the average sunshine duration is 9.2h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes 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
Dalton City, IL

Average temperature in September - Dalton City, IL
  • Average high temperature in September: 77°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in September: 58.5°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 (21.2°F).

Average pressure in September
Dalton City, IL

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Dalton City, IL

Average wind speed in September - Dalton City, IL
  • Average wind speed in September: 7.2mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in September
Dalton City, IL

Average humidity in September - Dalton City, IL
  • Average humidity in September: 76%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September
Dalton City, IL

Average rainfall in September - Dalton City, IL
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is May (2.01").
The driest months (with the least rainfall) are February and December (0.87").

Average rainfall days in September
Dalton City, IL

Average rainfall days in September - Dalton City, IL
  • Average rainfall days in September: 10.6 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in September
Dalton City, IL

Average snowfall in September - Dalton City, IL
  • Average snowfall in September: 0"

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

Average snowfall days in September
Dalton City, IL

Average snowfall days in September - Dalton City, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (7.2 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
Dalton City, IL

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in September
Dalton City, IL

Average sunshine days in September - Dalton City, IL
  • Average sunshine days in September: 17.3 days

The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in September
Dalton City, IL

Average UV index in September - Dalton City, 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
Dalton City, IL

Average cloud cover in September - Dalton City, IL
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in September
Dalton City, IL

Average visibility in September - Dalton City, 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).

Dalton City, Illinois, USA

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