September weather forecast
Ireton, IA

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Weather in September

The first month of the autumn, September, is still a warm month in Ireton, Iowa, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 54.5°F (12.5°C).

Temperature

September ushers in a minor alteration in Ireton's climate, with the average high-temperature moving from August's 81.1°F (27.3°C) to a still warm 74.8°F (23.8°C). In the month of September, an average of 54.5°F (12.5°C) marks the low-temperature in Ireton, Iowa.

Humidity

The average relative humidity in September in Ireton is 71%.

Rainfall

In Ireton, in September, it is raining for 7.7 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, in Ireton, Iowa, there are 80.7 rainfall days, and 6.54" (166mm) of precipitation is accumulated.

Snowfall

In Ireton, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 6:50 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:07 pm CDT.

Sunshine

The average sunshine in September in Ireton, Iowa, is 8.7h.

UV index

In Ireton, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 4 during September translates into the following directions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

What is the temperature in September in Ireton?

In September, the average high-temperature and low-temperature in Ireton, Iowa, are 74.8°F (23.8°C) and 54.5°F (12.5°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is calculated to be 86°F (30°C).

What is the average humidity in September in Ireton?

In Ireton, the average relative humidity in September is 71%.

How many days does it rain in September in Ireton?

In Ireton, Iowa, in September, it is raining for 7.7 days, with typically 0.67" (17mm) of accumulated precipitation.

When it does not snow in Ireton?

In Ireton, Iowa, snow does not fall in June through September.

Does it snow in Ireton in September?

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

How many hours of daylight does Ireton have in September?

In September, the average day length is 12h and 29min.

What time are sunrise and sunset in September in Ireton?

In September, on the first day of the month, sunrise is at 6:50 am and sunset at 7:59 pm. On the last day of the month, in Ireton, Iowa, sunrise is at 7:22 am and sunset at 7:07 pm CDT.

How long on average sun shines in September in Ireton?

In September, the average sunshine duration in Ireton, Iowa, is 8.7h.

What is the UV index intensity in September in Ireton?

In Ireton, Iowa, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Ireton, IA

Average temperature in September - Ireton, IA
  • Average high temperature in September: 74.8°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (25°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).

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Average pressure in September
Ireton, IA

Average pressure in September - Ireton, IA
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in September
Ireton, IA

Average wind speed in September - Ireton, IA
  • Average wind speed in September: 9.2mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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Average humidity in September
Ireton, IA

Average humidity in September - Ireton, IA
  • Average humidity in September: 71%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (66%).

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Average rainfall in September
Ireton, IA

Average rainfall in September - Ireton, IA
  • Average rainfall in September: 0.67"

The wettest month (with the highest rainfall) is June (1.06").
The driest months (with the least rainfall) are January and February (0.16").

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Average rainfall days in September
Ireton, IA

Average rainfall days in September - Ireton, IA
  • Average rainfall days in September: 7.7 days

The month with the highest number of rainy days is June (13 days).
The month with the least rainy days is February (1.3 days).

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Average snowfall in September
Ireton, IA

Average snowfall in September - Ireton, IA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.75").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Ireton, IA

Average snowfall days in September - Ireton, IA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.7 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
Ireton, IA

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

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

  • Average sunshine in September: 8h and 4min

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 0min).

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Average sunshine days in September
Ireton, IA

Average sunshine days in September - Ireton, IA
  • Average sunshine days in September: 20.1 days

The month with the most sunshine days is December (26 days).
The month with the least sunshine days is June (13.2 days).

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Average UV index in September
Ireton, IA

Average UV index in September - Ireton, IA
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Ireton, IA

Average cloud cover in September - Ireton, IA
  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in September
Ireton, IA

Average visibility in September - Ireton, 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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Ireton, Iowa, USA

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