September weather forecast
Guttenberg, IA

Weather in September

September, the first month of the autumn in Guttenberg, is also an agreeable month, with an average temperature varying between 72.5°F (22.5°C) and 52.7°F (11.5°C).

Temperature

In September, the average high-temperature marginally drops from a warm 78.4°F (25.8°C) in August to a pleasant 72.5°F (22.5°C). The average low-temperature, in Guttenberg, Iowa, is 52.7°F (11.5°C).

Humidity

The average relative humidity in September is 80%.

Rainfall

In Guttenberg, during 11.5 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. In Guttenberg, Iowa, during the entire year, the rain falls for 138.5 days and collects up to 28.46" (723mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day in Guttenberg, Iowa, is 12h and 29min.
On the first day of September, sunrise is at 6:29 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:47 pm CDT.

Sunshine

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

UV index

The average daily maximum UV index in September in Guttenberg, Iowa, is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in September in Guttenberg?

In September, the average relative humidity in Guttenberg, Iowa, is 80%.

How much does it rain in Guttenberg in September?

In September, in Guttenberg, the rain falls for 11.5 days. Throughout September, 2.72" (69mm) of precipitation is accumulated.

When it does not snow in Guttenberg?

June through September are months without snowfall in Guttenberg, Iowa.

Does it snow in Guttenberg in September?

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

How many hours of daylight does Guttenberg have in September?

The average day length in September is 12h and 29min.

What time are sunrise and sunset in September in Guttenberg?

In September, on the first day of the month, sunrise is at 6:29 am and sunset at 7:39 pm. On the last day of the month, in Guttenberg, Iowa, sunrise is at 7:00 am and sunset at 6:47 pm CDT.

How many hours of sunshine does Guttenberg have in September?

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

What is the UV index reading in September in Guttenberg?

In September, the average daily maximum UV index in Guttenberg is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Guttenberg, IA

Average temperature in September - Guttenberg, IA
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (23.7°F).

  • Average low temperature in September: 52.7°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).

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Average pressure in September
Guttenberg, IA

Average pressure in September - Guttenberg, IA
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in September
Guttenberg, IA

Average wind speed in September - Guttenberg, IA
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in September
Guttenberg, IA

Average humidity in September - Guttenberg, IA
  • Average humidity in September: 80%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in September
Guttenberg, IA

Average rainfall in September - Guttenberg, IA
  • Average rainfall in September: 2.72"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is January (1.18").

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Average rainfall days in September
Guttenberg, IA

Average rainfall days in September - Guttenberg, IA
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (4.4 days).

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Average snowfall in September
Guttenberg, IA

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

The month with the highest snowfall is January (5.2").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Guttenberg, IA

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

The month with the highest number of snowfall days is January (12.5 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
Guttenberg, IA

Average daylight in September / Average sunshine in September - Guttenberg, IA
  • Average daylight in September: 12h and 29min

The month with the longest days is June (Average daylight: 15h and 17min).
The month with the shortest days is December (Average daylight: 9h and 5min).

  • Average sunshine in September: 9h and 0min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in September
Guttenberg, IA

Average sunshine days in September - Guttenberg, IA
  • Average sunshine days in September: 17.1 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in September
Guttenberg, IA

Average UV index in September - Guttenberg, 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, November and December (UV index 1).

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Average cloud cover in September
Guttenberg, IA

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

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in September
Guttenberg, IA

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

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

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