September weather forecast
Fostoria, IA

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Weather in September

The first month of the autumn, September, is also an agreeable month in Fostoria, Iowa, with an average temperature fluctuating between 72.9°F (22.7°C) and 53.8°F (12.1°C).

Temperature

With the arrival of September, Fostoria experiences a modest decline in average high-temperatures, transitioning from a warm 78.3°F (25.7°C) in August to a pleasant 72.9°F (22.7°C). During the month of September, Fostoria's nighttime temperature lowers to an average of 53.8°F (12.1°C).

Humidity

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

Rainfall

In Fostoria, in September, it is raining for 10.5 days, with typically 1.3" (33mm) of accumulated precipitation. In Fostoria, during the entire year, the rain falls for 112.3 days and collects up to 15.31" (389mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September in Fostoria, Iowa, is 12h and 29min.
On the first day of the month, sunrise is at 6:45 am and sunset at 7:55 pm. On the last day of September, in Fostoria, sunrise is at 7:17 am and sunset at 7:02 pm CDT.

Sunshine

In Fostoria, the average sunshine in September is 9h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. To protect against the Sun's most potent rays, avoid direct exposure around midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

What is the average September temperature in Fostoria?

During September, Fostoria experiences an average high-temperature of 72.9°F (22.7°C) and a low-temperature of 53.8°F (12.1°C).

What is the average humidity in September in Fostoria?

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

How many days does it rain in September in Fostoria?

In Fostoria, during September, the rain falls for 10.5 days and regularly aggregates up to 1.3" (33mm) of precipitation.

When it does not snow in Fostoria?

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

Does it snow in Fostoria in September?

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

How many hours of daylight does Fostoria have in September?

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

When is the sunrise / sunset in September in Fostoria?

On the first day of September in Fostoria, Iowa, sunrise is at 6:45 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:02 pm CDT.

How many hours of sunshine does Fostoria have in September?

In September, the average sunshine duration in Fostoria, Iowa, is 9h.

What is the UV index intensity in September in Fostoria?

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
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
Fostoria, IA

Average temperature in September - Fostoria, IA
  • Average high temperature in September: 72.9°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in September: 53.8°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 (10.6°F).

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Average pressure in September
Fostoria, IA

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in September
Fostoria, IA

Average wind speed in September - Fostoria, IA
  • Average wind speed in September: 9mph

The windiest months (with the highest average wind speed) are January and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

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Average humidity in September
Fostoria, IA

Average humidity in September - Fostoria, IA
  • Average humidity in September: 74%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in September
Fostoria, IA

Average rainfall in September - Fostoria, IA
  • Average rainfall in September: 1.3"

The wettest month (with the highest rainfall) is June (2.44").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days in September
Fostoria, IA

Average rainfall days in September - Fostoria, IA
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (2.7 days).

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Average snowfall in September
Fostoria, IA

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

The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Fostoria, IA

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

The month with the highest number of snowfall days is January (10.8 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
Fostoria, IA

Average daylight in September / Average sunshine in September - Fostoria, 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 0min

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
Fostoria, IA

Average sunshine days in September - Fostoria, IA
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in September
Fostoria, IA

Average UV index in September - Fostoria, 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 and February (UV index 1).

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Average cloud cover in September
Fostoria, IA

Average cloud cover in September - Fostoria, IA
  • Average cloud cover in September: 31

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in September
Fostoria, IA

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

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