September weather forecast
Imogene, IA

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Weather in September

The first month of the autumn, September, is still a warm month in Imogene, Iowa, with an average temperature fluctuating between 76.8°F (24.9°C) and 57.7°F (14.3°C).

Temperature

The arrival of September correlates with a minor temperature reduction, down from August's 82.2°F (27.9°C) to a still warm 76.8°F (24.9°C). Imogene in September experiences a low-temperature average of 57.7°F (14.3°C).

Humidity

In September, the average relative humidity in Imogene is 73%.

Rainfall

In Imogene, in September, it is raining for 12.3 days, with typically 2.32" (59mm) of accumulated precipitation. Throughout the year, in Imogene, there are 125.6 rainfall days, and 26.14" (664mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in September in Imogene, Iowa, is 12h and 27min.
On the first day of the month, sunrise is at 6:49 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:04 pm CDT.

Sunshine

In September, the average sunshine is 9.2h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 5 during September leads to these instructions:
Make use of precautions - It is urged to ward off sun damage. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

What is the temperature in September in Imogene?

September temperatures in Imogene vary between a high-temperature of 76.8°F (24.9°C) and a low-temperature of 57.7°F (14.3°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in August is estimated at 89.6°F (32°C).

What is the average humidity in September in Imogene?

The average relative humidity in September is 73%.

How many days does it rain in September in Imogene?

In Imogene, Iowa, in September, it is raining for 12.3 days, with typically 2.32" (59mm) of accumulated precipitation.

When it does not snow in Imogene?

May through September are months without snowfall in Imogene.

Does it snow in Imogene in September?

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

What is the average length of the day in September in Imogene?

The average day length in September in Imogene, Iowa, is 12h and 27min.

When are sunrise and sunset in September in Imogene?

On the first day of September, sunrise is at 6:49 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:04 pm CDT.

How long on average sun shines in September in Imogene?

In September, the average sunshine duration in Imogene, Iowa, is 9.2h.

What is the UV index intensity in September in Imogene?

In September, the average daily maximum UV index in Imogene is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Imogene, IA

Average temperature in September - Imogene, IA
  • Average high temperature in September: 76.8°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in September: 57.7°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (18°F).

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Average pressure in September
Imogene, IA

Average pressure in September - Imogene, IA
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in September
Imogene, IA

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

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

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Average humidity in September
Imogene, IA

Average humidity in September - Imogene, IA
  • Average humidity in September: 73%

The months with the highest relative humidity are January and July (79%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in September
Imogene, IA

Average rainfall in September - Imogene, IA
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is June (4.29").
The driest month (with the least rainfall) is February (0.71").

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Average rainfall days in September
Imogene, IA

Average rainfall days in September - Imogene, IA
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (3.9 days).

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Average snowfall in September
Imogene, IA

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

The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Imogene, IA

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

The month with the highest number of snowfall days is January (8.6 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
Imogene, IA

Average daylight in September / Average sunshine in September - Imogene, 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 1min

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 42min).

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Average sunshine days in September
Imogene, IA

Average sunshine days in September - Imogene, IA
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (11.8 days).

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Average UV index in September
Imogene, IA

Average UV index in September - Imogene, IA
  • 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).

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Average cloud cover in September
Imogene, IA

Average cloud cover in September - Imogene, IA
  • Average cloud cover in September: 28

The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in September
Imogene, IA

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

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