September weather forecast
Mount Union, OH

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Weather in September

September, the first month of the autumn in Mount Union, is still a warm month, with an average temperature varying between 54.5°F (12.5°C) and 74.3°F (23.5°C).

Temperature

Mount Union, Ohio, in September experiences a gentle temperature dip, with average high-temperatures reducing from 80.8°F (27.1°C) in August to a still moderately hot 74.3°F (23.5°C). In Mount Union, September's nights observe an average temperature dip to a cool 54.5°F (12.5°C).

Humidity

In Mount Union, the average relative humidity in September is 79%.

Rainfall

September is the month with the least rainfall in Mount Union, Ohio. Rain falls for 15.5 days and accumulates 1.89" (48mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of September in Mount Union, sunrise is at 6:51 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:07 pm EDT.

Sunshine

The average sunshine in September is 8.2h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 4 suggests these recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Frequently asked questions

What is the usual temperature for Mount Union in September?

Mount Union in September has an average high-temperature of 74.3°F (23.5°C) and an average low-temperature of 54.5°F (12.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in August is computed to be 86°F (30°C).

What is the average humidity in September in Mount Union?

In Mount Union, Ohio, the average relative humidity in September is 79%.

What is the driest month in Mount Union?

The month with the least rainfall in Mount Union, Ohio, is September, when the rain falls for 15.5 days and typically collects 1.89" (48mm) of precipitation.

How many days does it rain in September in Mount Union?

In September, in Mount Union, Ohio, the rain falls for 15.5 days. Throughout September, 1.89" (48mm) of precipitation is accumulated.

When it does not snow in Mount Union?

In Mount Union, Ohio, snow does not fall in June through September.

Does it snow in Mount Union in September?

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

What is the average length of the day in September in Mount Union?

The average day length in September in Mount Union, Ohio, is 12h and 27min.

When is the sunrise / sunset in September in Mount Union?

On the first day of September in Mount Union, sunrise is at 6:51 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:07 pm EDT.

How many hours of sunshine does Mount Union have in September?

In September, the average sunshine duration is 8.2h.

What is the UV index intensity in September in Mount Union?

The average daily maximum UV index in September in Mount Union, Ohio, is 4. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Mount Union, OH

Average temperature in September - Mount Union, OH
  • Average high temperature in September: 74.3°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in September
Mount Union, OH

Average pressure in September - Mount Union, OH
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Mount Union, OH

Average wind speed in September - Mount Union, OH
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).

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Average humidity in September
Mount Union, OH

Average humidity in September - Mount Union, OH
  • Average humidity in September: 79%

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are July and August (77%).

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Average rainfall in September
Mount Union, OH

Average rainfall in September - Mount Union, OH
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is July (2.99").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in September
Mount Union, OH

Average rainfall days in September - Mount Union, OH
  • Average rainfall days in September: 15.5 days

The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall in September
Mount Union, OH

Average snowfall in September - Mount Union, OH
  • Average snowfall in September: 0"

The month with the highest snowfall is January (6.54").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Mount Union, OH

Average snowfall days in September - Mount Union, OH
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (18.5 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
Mount Union, OH

Average daylight in September / Average sunshine in September - Mount Union, OH
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

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Average sunshine days in September
Mount Union, OH

Average sunshine days in September - Mount Union, OH
  • Average sunshine days in September: 13 days

The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is February (7.7 days).

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Average UV index in September
Mount Union, OH

Average UV index in September - Mount Union, OH
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Mount Union, OH

Average cloud cover in September - Mount Union, OH
  • Average cloud cover in September: 40

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in September
Mount Union, OH

Average visibility in September - Mount Union, OH
  • Average visibility in September: 5mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).

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Mount Union, Ohio, USA

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