September weather forecast
Unionville Center, OH

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Weather in September

September, the first month of the autumn in Unionville Center, is also a moderately hot month, with an average temperature fluctuating between 74.1°F (23.4°C) and 55.8°F (13.2°C).

Temperature

As August transitions into September, Unionville Center records an average high-temperature of a still warm 74.1°F (23.4°C), showing a gentle shift from the preceding month. In Unionville Center, the nighttime temperature averages to a moderate 55.8°F (13.2°C) during September.

Humidity

In Unionville Center, the average relative humidity in September is 79%.

Rainfall

In Unionville Center, during September, the rain falls for 14.8 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, in Unionville Center, there are 171.9 rainfall days, and 29.92" (760mm) of precipitation is accumulated.

Snowfall

In Unionville Center, snow does not fall in May through September.

Daylight

The average length of the day in September in Unionville Center is 12h and 26min.
On the first day of the month, sunrise is at 7:01 am and sunset at 8:04 pm. On the last day of September, in Unionville Center, sunrise is at 7:29 am and sunset at 7:16 pm EDT.

Sunshine

In September, the average sunshine in Unionville Center is 8.1h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Unionville Center?

In September, the average high-temperature and low-temperature are 74.1°F (23.4°C) and 55.8°F (13.2°C) respectively.

What is the average humidity in September in Unionville Center?

The average relative humidity in September in Unionville Center, Ohio, is 79%.

How many days does it rain in September in Unionville Center?

In September, in Unionville Center, the rain falls for 14.8 days. Throughout September, 2.13" (54mm) of precipitation is accumulated.

When it does not snow in Unionville Center?

May through September are months without snowfall.

Does it snow in Unionville Center in September?

In Unionville Center, Ohio, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Unionville Center?

In Unionville Center, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September in Unionville Center?

On the first day of September in Unionville Center, Ohio, sunrise is at 7:01 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:16 pm EDT.

How many hours of sunshine does Unionville Center have in September?

In September, the average sunshine duration is 8.1h.

What is the UV index intensity in September in Unionville Center?

In September, the average daily maximum UV index in Unionville Center, Ohio, is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Unionville Center, OH

Average temperature in September - Unionville Center, OH
  • Average high temperature in September: 74.1°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in September: 55.8°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in September
Unionville Center, OH

Average pressure in September - Unionville Center, OH
  • Average pressure in September: 30.04"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Unionville Center, OH

Average wind speed in September - Unionville Center, OH
  • Average wind speed in September: 6.4mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in September
Unionville Center, OH

Average humidity in September - Unionville Center, OH
  • Average humidity in September: 79%

The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (75%).

Average rainfall in September
Unionville Center, OH

Average rainfall in September - Unionville Center, OH
  • Average rainfall in September: 2.13"

The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is November (1.89").

Average rainfall days in September
Unionville Center, OH

Average rainfall days in September - Unionville Center, OH
  • Average rainfall days in September: 14.8 days

The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in September
Unionville Center, OH

Average snowfall in September - Unionville Center, OH
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.11").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Unionville Center, OH

Average snowfall days in September - Unionville Center, OH
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Unionville Center, OH

Average daylight in September / Average sunshine in September - Unionville Center, OH
  • Average daylight in September: 12h and 2min

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

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in September
Unionville Center, OH

Average sunshine days in September - Unionville Center, OH
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is June (9.1 days).

Average UV index in September
Unionville Center, OH

Average UV index in September - Unionville Center, OH
  • Average UV index in September: 4

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

Average cloud cover in September
Unionville Center, OH

Average cloud cover in September - Unionville Center, OH
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in September
Unionville Center, OH

Average visibility in September - Unionville Center, OH
  • Average visibility in September: 5mi

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

Unionville Center, Ohio, USA

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