September weather forecast
Mount Union, OH

Share

Weather in September

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

Temperature

As August makes way for September, Mount Union's average high-temperature eases from 80.8°F (27.1°C) to a still warm 74.3°F (23.5°C). In Mount Union, an average low-temperature of 54.5°F (12.5°C) is recorded during September nights.

Humidity

The average relative humidity in September is 79%.

Rainfall

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

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of the month, sunrise is at 6:51 am and sunset at 7:56 pm. On the last day of September, 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 moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 4 translates into these guidelines:
Ensure safety - Sun damage prevention is strongly urged. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Mount Union in September?

In September, the average high-temperature and low-temperature are 74.3°F (23.5°C) and 54.5°F (12.5°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air 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 September, the average relative humidity in Mount Union is 79%.

What is the driest month?

The month with the least rainfall 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 September, in Mount Union, the rain falls for 15.5 days. Throughout September, 1.89" (48mm) of precipitation is accumulated.

When it does not snow?

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

Does it snow in September?

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

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

In Mount Union, the average day length in September is 12h and 27min.

When is the sunrise / sunset in September?

On the first day of September, 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 long on average sun shines in September?

The average sunshine duration in September is 8.2h.

What is the UV index reading in September?

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe 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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Mount Union, Ohio, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location