September weather forecast
Brookville, OH

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Brookville, Ohio, with temperature in the range of an average low of 56.8°F (13.8°C) and an average high of 74.8°F (23.8°C).

Temperature

The transition into September reveals an average high-temperature of a still moderately hot 74.8°F (23.8°C), mirroring a close resemblance to August. September witnesses an average nighttime temperature of 56.8°F (13.8°C).

Humidity

The average relative humidity in September is 77%.

Rainfall

In September, the rain falls for 11.4 days. Throughout September, 0.91" (23mm) of precipitation is accumulated. In Brookville, during the entire year, the rain falls for 133.9 days and collects up to 14.45" (367mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 7:06 am and sunset at 8:08 pm. On the last day of September, sunrise is at 7:33 am and sunset at 7:21 pm EDT.

Sunshine

The average sunshine in September is 8.3h.

UV index

The average daily maximum UV index in September in Brookville is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

The high-temperature during September is 74.8°F (23.8°C) and the low-temperature is 56.8°F (13.8°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in July is calculated to be 87.8°F (31°C).

What is the average humidity in September in Brookville?

The average relative humidity in September is 77%.

How much does it rain in September?

In September, the rain falls for 11.4 days. Throughout September, 0.91" (23mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:06 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 7:21 pm EDT.

How many hours of sunshine does Brookville have in September?

In September, the average sunshine duration is 8.3h.

How high is the UV index in September?

In September, the average daily maximum UV index 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
Brookville, OH

Average temperature in September - Brookville, OH
  • Average high temperature in September: 74.8°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in September: 56.8°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

Average pressure in September
Brookville, OH

Average pressure in September - Brookville, OH
  • Average pressure in September: 30.03"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
Brookville, OH

Average wind speed in September - Brookville, OH
  • Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in September
Brookville, OH

Average humidity in September - Brookville, OH
  • Average humidity in September: 77%

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).

Average rainfall in September
Brookville, OH

Average rainfall in September - Brookville, OH
  • Average rainfall in September: 0.91"

The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is November (0.83").

Average rainfall days in September
Brookville, OH

Average rainfall days in September - Brookville, OH
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (6.1 days).

Average snowfall in September
Brookville, OH

Average snowfall in September - Brookville, OH
  • Average snowfall in September: 0"

The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Brookville, OH

Average snowfall days in September - Brookville, OH
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Brookville, OH

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 8h and 2min

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 42min).

Average sunshine days in September
Brookville, OH

Average sunshine days in September - Brookville, OH
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (11.4 days).

Average UV index in September
Brookville, OH

Average UV index in September - Brookville, OH
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Brookville, OH

Average cloud cover in September - Brookville, OH
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in September
Brookville, OH

Average visibility in September - Brookville, OH
  • Average visibility in September: 6mi

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

Brookville, Ohio, USA

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