September weather forecast
Fenton, IA

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Weather in September

The first month of the autumn, September, is still a warm month in Fenton, Iowa, with an average temperature fluctuating between 73.4°F (23°C) and 54.5°F (12.5°C).

Temperature

With the onset of September, Fenton's average high-temperature clocks in at a still warm 73.4°F (23°C), showing a minor fluctuation from the previous month. Throughout the month of September, Fenton witnesses an average temperature of 54.5°F (12.5°C).

Humidity

In Fenton, the average relative humidity in September is 75%.

Rainfall

In Fenton, Iowa, in September, it is raining for 9.5 days, with typically 1.06" (27mm) of accumulated precipitation. Throughout the year, in Fenton, there are 100.5 rainfall days, and 11.69" (297mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in September in Fenton is 12h and 29min.
On the first day of the month, sunrise is at 6:42 am and sunset at 7:52 pm. On the last day of September, in Fenton, sunrise is at 7:14 am and sunset at 7:00 pm CDT.

Sunshine

In Fenton, the average sunshine in September is 9.1h.

UV index

In Fenton, Iowa, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: During September, 4 as the daily maximum UV index converts into the following advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Feb 12, 2024 | Published by: Weather U.S. | Resources

Frequently asked questions

What are the temperatures in Fenton in September?

During September, Fenton experiences an average high-temperature of 73.4°F (23°C) and a low-temperature of 54.5°F (12.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in July is appraised at 86°F (30°C).

What is the average humidity in September in Fenton?

The average relative humidity in September is 75%.

How many days does it rain in September in Fenton?

In Fenton, in September, it is raining for 9.5 days, with typically 1.06" (27mm) of accumulated precipitation.

When it does not snow in Fenton?

May through September are months without snowfall in Fenton.

Does it snow in Fenton in September?

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

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

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

What time are sunrise and sunset in September in Fenton?

In September, on the first day of the month, sunrise is at 6:42 am and sunset at 7:52 pm. On the last day of the month, in Fenton, sunrise is at 7:14 am and sunset at 7:00 pm CDT.

How long on average sun shines in September in Fenton?

The average sunshine duration in September in Fenton is 9.1h.

What is the UV index reading in September in Fenton?

In Fenton, Iowa, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents 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
Fenton, IA

Average temperature in September - Fenton, IA
  • Average high temperature in September: 73.4°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in September
Fenton, IA

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in September
Fenton, IA

Average wind speed in September - Fenton, IA
  • Average wind speed in September: 8.7mph

The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).

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Average humidity in September
Fenton, IA

Average humidity in September - Fenton, IA
  • Average humidity in September: 75%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in September
Fenton, IA

Average rainfall in September - Fenton, IA
  • Average rainfall in September: 1.06"

The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is January (0.39").

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Average rainfall days in September
Fenton, IA

Average rainfall days in September - Fenton, IA
  • Average rainfall days in September: 9.5 days

The month with the highest number of rainy days is June (14.5 days).
The month with the least rainy days is February (2.1 days).

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Average snowfall in September
Fenton, IA

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

The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Fenton, IA

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

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Fenton, IA

Average daylight in September / Average sunshine in September - Fenton, 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 0min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in September
Fenton, IA

Average sunshine days in September - Fenton, IA
  • Average sunshine days in September: 17.9 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (12.8 days).

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Average UV index in September
Fenton, IA

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

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

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Average cloud cover in September
Fenton, IA

Average cloud cover in September - Fenton, IA
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in September
Fenton, IA

Average visibility in September - Fenton, IA
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

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Fenton, Iowa, USA

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