September weather forecast
Ironton, WI

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Weather in September

The first month of the autumn, September, is still a pleasant month in Ironton, Wisconsin, with an average temperature varying between 71.2°F (21.8°C) and 51.1°F (10.6°C).

Temperature

The onset of September results in a small decrease in the average high-temperature, moderately receding from a moderately hot 77.9°F (25.5°C) in August to an agreeable 71.2°F (21.8°C). During the September nights, an average temperature of 51.1°F (10.6°C) is observed.

Humidity

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

Rainfall

In Ironton, in September, it is raining for 10.3 days, with typically 1.97" (50mm) of accumulated precipitation. Throughout the year, in Ironton, there are 117.9 rainfall days, and 21.02" (534mm) of precipitation is accumulated.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 29min.
On the first day of September, sunrise is at 6:25 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:42 pm CDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

The average daily maximum UV index in September in Ironton is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: In September, the maximum UV index of 3 transforms into these recommendations:
Take precautions - Protection against sun damage is advised. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Frequently asked questions

What is the average September temperature in Ironton?

In September, the average high-temperature and low-temperature in Ironton, Wisconsin, are 71.2°F (21.8°C) and 51.1°F (10.6°C) respectively.

What is the average humidity in September in Ironton?

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

How much does it rain in Ironton in September?

In Ironton, during September, the rain falls for 10.3 days and regularly aggregates up to 1.97" (50mm) of precipitation.

When it does not snow in Ironton?

May through September are months without snowfall in Ironton.

Does it snow in Ironton in September?

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

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

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

When are sunrise and sunset in September in Ironton?

On the first day of September in Ironton, Wisconsin, sunrise is at 6:25 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:42 pm CDT.

How long on average sun shines in September in Ironton?

The average sunshine duration in September in Ironton, Wisconsin, is 8.6h.

How high is the UV index in September in Ironton?

The average daily maximum UV index in September in Ironton, Wisconsin, is 3. A UV Index estimate of 3 to 5 represents 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
Ironton, WI

Average temperature in September - Ironton, WI
  • Average high temperature in September: 71.2°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.3°F).

  • Average low temperature in September: 51.1°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average pressure in September
Ironton, WI

Average pressure in September - Ironton, 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
Ironton, WI

Average wind speed in September - Ironton, WI
  • Average wind speed in September: 7.5mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in September
Ironton, WI

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

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (77%).

Average rainfall in September
Ironton, WI

Average rainfall in September - Ironton, WI
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is June (2.83").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in September
Ironton, WI

Average rainfall days in September - Ironton, WI
  • Average rainfall days in September: 10.3 days

The months with the highest number of rainy days are May and June (16.1 days).
The month with the least rainy days is February (2.5 days).

Average snowfall in September
Ironton, WI

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

The month with the highest snowfall is February (4.37").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Ironton, WI

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

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Ironton, WI
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in September
Ironton, WI

Average sunshine days in September - Ironton, WI
  • Average sunshine days in September: 18.1 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (11.5 days).

Average UV index in September
Ironton, WI

Average UV index in September - Ironton, WI
  • Average UV index in September: 3

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in September
Ironton, WI

Average cloud cover in September - Ironton, WI
  • Average cloud cover in September: 36

The month with the most cloud cover is January (Cloud cover 69).
The months with the least cloud cover are July, August and September (Cloud cover 36).

Average visibility in September
Ironton, WI

Average visibility in September - Ironton, WI
  • Average visibility in September: 5mi

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

Ironton, Wisconsin, USA

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