September weather forecast
Ina, IL

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Weather in September

September, the first month of the autumn in Ina, is still a warm month, with temperature in the range of an average high of 79.7°F (26.5°C) and an average low of 60.3°F (15.7°C).

Temperature

With the commencement of September, Ina records a moderate temperature decline, with the average high easing from August's moderately hot 85.3°F (29.6°C) to a still warm 79.7°F (26.5°C). Throughout the September nights, Ina encounters a low-temperature of 60.3°F (15.7°C).

Humidity

In September, the average relative humidity is 74%.

Rainfall

The month with the least rainfall is September, when the rain falls for 9 days and typically collects 0.98" (25mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September in Ina is 12h and 25min.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:24 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:39 pm CDT.

Sunshine

In September, the average sunshine 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 medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A typical high UV index of 5 in September suggests the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Ina?

The average high-temperature and low-temperature during September are 79.7°F (26.5°C) and 60.3°F (15.7°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is evaluated at 96.8°F (36°C).

What is the average humidity in September in Ina?

In Ina, the average relative humidity in September is 74%.

What is the driest month in Ina?

September is the month with the least rainfall in Ina, Illinois. Rain falls for 9 days and accumulates 0.98" (25mm) of precipitation.

How many days does it rain in September in Ina?

In Ina, in September, during 9 rainfall days, 0.98" (25mm) of precipitation is typically accumulated.

When it does not snow in Ina?

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

Does it snow in Ina in September?

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

How many hours of daylight does Ina have in September?

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

When are sunrise and sunset in September in Ina?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:39 pm CDT.

How long on average sun shines in September in Ina?

In September, the average sunshine duration is 9.3h.

What is the UV index reading in September in Ina?

In Ina, Illinois, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to 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
Ina, IL

Average temperature in September - Ina, IL
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 60.3°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in September
Ina, IL

Average pressure in September - Ina, IL
  • Average pressure in September: 30.03"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
Ina, IL

Average wind speed in September - Ina, IL
  • Average wind speed in September: 6.5mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

Average humidity in September
Ina, IL

Average humidity in September - Ina, IL
  • Average humidity in September: 74%

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

Average rainfall in September
Ina, IL

Average rainfall in September - Ina, IL
  • Average rainfall in September: 0.98"

The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is September (0.98").

Average rainfall days in September
Ina, IL

Average rainfall days in September - Ina, IL
  • Average rainfall days in September: 9 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in September
Ina, IL

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

The month with the highest snowfall is January (0.71").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Ina, IL

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

The month with the highest number of snowfall days is January (4.5 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
Ina, IL

Average daylight in September / Average sunshine in September - Ina, 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 36min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in September
Ina, IL

Average sunshine days in September - Ina, IL
  • Average sunshine days in September: 18.7 days

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is May (13.8 days).

Average UV index in September
Ina, IL

Average UV index in September - Ina, 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
Ina, IL

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

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in September
Ina, IL

Average visibility in September - Ina, 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).

Ina, Illinois, USA

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