September weather forecast
Iron Junction, MN

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Weather in September

September, the first month of the autumn in Iron Junction, is still a refreshing month, with an average temperature ranging between min 46.9°F (8.3°C) and max 65.8°F (18.8°C).

Temperature

With the onset of September, Iron Junction experiences a modest temperature adjustment, with the average high-temperature receding from a warm 74.8°F (23.8°C) in August to a refreshing 65.8°F (18.8°C). Throughout September, an average nighttime temperature of 46.9°F (8.3°C) is experienced in Iron Junction.

Humidity

In September, the average relative humidity in Iron Junction is 77%.

Rainfall

In Iron Junction, during September, the rain falls for 14.3 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, in Iron Junction, there are 123.8 rainfall days, and 22.24" (565mm) of precipitation is accumulated.

Snowfall

In Iron Junction, snow does not fall in June through September.

Daylight

In Iron Junction, the average length of the day in September is 12h and 33min.
On the first day of September, sunrise is at 6:30 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:51 pm CDT.

Sunshine

The average sunshine in September is 7.8h.

UV index

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: A daily high UV index of 3 in September leads to these guidelines:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Iron Junction?

The average high-temperature, in September, in Iron Junction, is 65.8°F (18.8°C), while the average low-temperature is 46.9°F (8.3°C).

What is the average humidity in September in Iron Junction?

The average relative humidity in September is 77%.

How much does it rain in Iron Junction in September?

In Iron Junction, in September, during 14.3 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow in Iron Junction?

June through September are months without snowfall.

Does it snow in Iron Junction in September?

In Iron Junction, Minnesota, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Iron Junction have in September?

In Iron Junction, Minnesota, the average day length in September is 12h and 33min.

What time are sunrise and sunset in September in Iron Junction?

In September, on the first day of the month, sunrise is at 6:30 am and sunset at 7:50 pm. On the last day of the month, in Iron Junction, Minnesota, sunrise is at 7:09 am and sunset at 6:51 pm CDT.

How many hours of sunshine does Iron Junction have in September?

In Iron Junction, Minnesota, the average sunshine duration in September is 7.8h.

How high is the UV index in September in Iron Junction?

In Iron Junction, Minnesota, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health threat 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
Iron Junction, MN

Average temperature in September - Iron Junction, MN
  • Average high temperature in September: 65.8°F

The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (14.4°F).

  • Average low temperature in September: 46.9°F

The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (0°F).

Average pressure in September
Iron Junction, MN

Average pressure in September - Iron Junction, MN
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in September
Iron Junction, MN

Average wind speed in September - Iron Junction, MN
  • Average wind speed in September: 8.1mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (7mph).

Average humidity in September
Iron Junction, MN

Average humidity in September - Iron Junction, MN
  • Average humidity in September: 77%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (72%).

Average rainfall in September
Iron Junction, MN

Average rainfall in September - Iron Junction, MN
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is June (2.83").
The driest months (with the least rainfall) are January and February (0.91").

Average rainfall days in September
Iron Junction, MN

Average rainfall days in September - Iron Junction, MN
  • Average rainfall days in September: 14.3 days

The month with the highest number of rainy days is June (17.5 days).
The month with the least rainy days is February (1.5 days).

Average snowfall in September
Iron Junction, MN

Average snowfall in September - Iron Junction, MN
  • Average snowfall in September: 0"

The month with the highest snowfall is December (8.74").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Iron Junction, MN

Average snowfall days in September - Iron Junction, MN
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (21 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Iron Junction, MN

Average daylight in September / Average sunshine in September - Iron Junction, MN
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).

Average sunshine days in September
Iron Junction, MN

Average sunshine days in September - Iron Junction, MN
  • Average sunshine days in September: 13.8 days

The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is June (9.5 days).

Average UV index in September
Iron Junction, MN

Average UV index in September - Iron Junction, MN
  • Average UV index in September: 3

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

Average cloud cover in September
Iron Junction, MN

Average cloud cover in September - Iron Junction, MN
  • Average cloud cover in September: 44

The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 36).

Average visibility in September
Iron Junction, MN

Average visibility in September - Iron Junction, MN
  • Average visibility in September: 5mi

The months with the highest visibility are May, June, July and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).

Iron Junction, Minnesota, USA

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