September weather forecast
Kieler, WI

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Weather in September

The first month of the autumn, September, is still a pleasant month in Kieler, Wisconsin, with an average temperature varying between 53.1°F (11.7°C) and 72.5°F (22.5°C).

Temperature

September signifies a gentle decline in Kieler's average high-temperature, easing from a moderately hot 78.8°F (26°C) in August to a pleasant 72.5°F (22.5°C). Kieler encounters an average low-temperature of 53.1°F (11.7°C) during September nights.

Humidity

In September, the average relative humidity is 80%.

Rainfall

In Kieler, during September, the rain falls for 10.7 days and regularly aggregates up to 1.89" (48mm) of precipitation. In Kieler, during the entire year, the rain falls for 124.6 days and collects up to 20.2" (513mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September in Kieler is 12h and 28min.
On the first day of September, sunrise is at 6:28 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:44 pm CDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

In Kieler, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. To guard against the harmful effects of the Sun, minimize exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Kieler in September?

In September, in Kieler, the average high-temperature is 72.5°F (22.5°C), and the average low-temperature is 53.1°F (11.7°C).

What is the average humidity in September?

The average relative humidity in September is 80%.

How much does it rain in September?

In Kieler, in September, during 10.7 rainfall days, 1.89" (48mm) of precipitation is typically accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

What is the average length of the day in September?

In Kieler, Wisconsin, the average day length in September is 12h and 28min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:28 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:44 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September in Kieler is 8.9h.

What is the UV index reading in September?

The average daily maximum UV index in September is 4. A UV Index reading 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
Kieler, WI

Average temperature in September - Kieler, WI
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (24.6°F).

  • Average low temperature in September: 53.1°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (12°F).

Average pressure in September
Kieler, WI

Average pressure in September - Kieler, WI
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in September
Kieler, WI

Average wind speed in September - Kieler, WI
  • Average wind speed in September: 7.6mph

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

Average humidity in September
Kieler, WI

Average humidity in September - Kieler, WI
  • Average humidity in September: 80%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (76%).

Average rainfall in September
Kieler, WI

Average rainfall in September - Kieler, WI
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is June (2.87").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days in September
Kieler, WI

Average rainfall days in September - Kieler, WI
  • Average rainfall days in September: 10.7 days

The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is January (3.1 days).

Average snowfall in September
Kieler, WI

Average snowfall in September - Kieler, WI
  • Average snowfall in September: 0"

The months with the highest snowfall are January and February (3.31").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Kieler, WI

Average snowfall days in September - Kieler, WI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Kieler, WI

Average daylight in September / Average sunshine in September - Kieler, WI
  • 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 5min

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in September
Kieler, WI

Average sunshine days in September - Kieler, WI
  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is June (10.6 days).

Average UV index in September
Kieler, WI

Average UV index in September - Kieler, WI
  • Average UV index in September: 4

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

Average cloud cover in September
Kieler, WI

Average cloud cover in September - Kieler, WI
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Kieler, WI

Average visibility in September - Kieler, WI
  • Average visibility in September: 6mi

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

Kieler, Wisconsin, USA

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