September weather forecast
Liberty Center, IA

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Weather in September

September, the first month of the autumn in Liberty Center, is still a warm month, with an average temperature varying between 55.9°F (13.3°C) and 75.7°F (24.3°C).

Temperature

As September begins, there is a minor decrease in the average high-temperature, softly falling from 81.3°F (27.4°C) in August to a still moderately hot 75.7°F (24.3°C). During September, Liberty Center observes a consistent average nighttime temperature of 55.9°F (13.3°C).

Humidity

The average relative humidity in September is 76%.

Rainfall

In Liberty Center, during September, the rain falls for 11.1 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, there are 118.9 rainfall days, and 18.62" (473mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Liberty Center.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:41 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:57 pm CDT.

Sunshine

In Liberty Center, Iowa, the average sunshine in September is 9.3h.

UV index

The average daily maximum UV index in September in Liberty Center is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Take precautions - Protection against sun damage is advised. To guard against the harmful effects of the Sun, minimize exposure during midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

What is the temperature in September in Liberty Center?

Liberty Center in September has an average high-temperature of 75.7°F (24.3°C) and an average low-temperature of 55.9°F (13.3°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 87.8°F (31°C).

What is the average humidity in September in Liberty Center?

In September, the average relative humidity in Liberty Center, Iowa, is 76%.

How much does it rain in Liberty Center in September?

In Liberty Center, Iowa, in September, it is raining for 11.1 days, with typically 1.81" (46mm) of accumulated precipitation.

When it does not snow in Liberty Center?

In Liberty Center, snow does not fall in June through September.

Does it snow in Liberty Center in September?

In Liberty Center, Iowa, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Liberty Center have in September?

In September, the average day length is 12h and 28min.

What time are sunrise and sunset in September in Liberty Center?

In September, on the first day of the month, sunrise is at 6:41 am and sunset at 7:46 pm. On the last day of the month, in Liberty Center, sunrise is at 7:10 am and sunset at 6:57 pm CDT.

How many hours of sunshine does Liberty Center have in September?

The average sunshine duration in September in Liberty Center, Iowa, is 9.3h.

How high is the UV index in September in Liberty Center?

In September, the average daily maximum UV index in Liberty Center is 4. A UV Index reading 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
Liberty Center, IA

Average temperature in September - Liberty Center, IA
  • Average high temperature in September: 75.7°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in September: 55.9°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 (15.3°F).

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Average pressure in September
Liberty Center, IA

Average pressure in September - Liberty Center, IA
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in September
Liberty Center, IA

Average wind speed in September - Liberty Center, IA
  • Average wind speed in September: 8mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

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Average humidity in September
Liberty Center, IA

Average humidity in September - Liberty Center, IA
  • Average humidity in September: 76%

The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Liberty Center, IA

Average rainfall in September - Liberty Center, IA
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (0.55").

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Average rainfall days in September
Liberty Center, IA

Average rainfall days in September - Liberty Center, IA
  • Average rainfall days in September: 11.1 days

The months with the highest number of rainy days are May and June (15.9 days).
The month with the least rainy days is January (3.4 days).

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Average snowfall in September
Liberty Center, IA

Average snowfall in September - Liberty Center, IA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.03").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Liberty Center, IA

Average snowfall days in September - Liberty Center, IA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Liberty Center, IA

Average daylight in September / Average sunshine in September - Liberty Center, IA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in September
Liberty Center, IA

Average sunshine days in September - Liberty Center, IA
  • Average sunshine days in September: 17 days

The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is June (11 days).

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Average UV index in September
Liberty Center, IA

Average UV index in September - Liberty Center, IA
  • Average UV index in September: 4

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

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Average cloud cover in September
Liberty Center, IA

Average cloud cover in September - Liberty Center, IA
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in September
Liberty Center, IA

Average visibility in September - Liberty Center, IA
  • 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).

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Liberty Center, Iowa, USA

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