September weather forecast
Oak Hill, OH

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Oak Hill, Ohio, with temperature in the range of an average high of 78.1°F (25.6°C) and an average low of 57.4°F (14.1°C).

Temperature

In Oak Hill, the average high-temperature in September slightly decreases from a warm 84.7°F (29.3°C) in August to a still moderately hot 78.1°F (25.6°C). An average low-temperature of 57.4°F (14.1°C) marks the nights throughout September.

Humidity

August and September, with an average relative humidity of 75%, are the least humid months.

Rainfall

September and November are months with the least rain in Oak Hill when the rain falls for 7.9 days and typically aggregates up to 0.75" (19mm) of rain.

Snowfall

In Oak Hill, snow does not fall in May through September.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of September, sunrise is at 6:59 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:14 pm EDT.

Sunshine

In September, the average sunshine is 8h.

UV index

In Oak Hill, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: During September, 4 as the daily maximum UV index converts into the following advice:
Be vigilant - Preventing sunburn is recommended. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The average high-temperature, in September, in Oak Hill, is 78.1°F (25.6°C), while the average low-temperature is 57.4°F (14.1°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 93.2°F (34°C).

What are the least humid months?

The months with the lowest humidity are August and September, with an average relative humidity of 75%.

What is the average humidity in September?

In Oak Hill, the average relative humidity in September is 75%.

What is the driest month?

The months with the least rainfall are September and November Rain falls for 7.9 days and accumulates 0.75" (19mm) of rain.

How many days does it rain in September?

In Oak Hill, in September, it is raining for 7.9 days, with typically 0.75" (19mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

In Oak Hill, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

The average day length in September is 12h and 26min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:59 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:14 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8h.

How high is the UV index in September?

In Oak Hill, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Oak Hill, OH

Average temperature in September - Oak Hill, OH
  • Average high temperature in September: 78.1°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in September: 57.4°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

Average pressure in September
Oak Hill, OH

Average pressure in September - Oak Hill, OH
  • Average pressure in September: 30.05"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Oak Hill, OH

Average wind speed in September - Oak Hill, OH
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in September
Oak Hill, OH

Average humidity in September - Oak Hill, OH
  • Average humidity in September: 75%

The months with the highest relative humidity are January and February (82%).
The months with the lowest relative humidity are August and September (75%).

Average rainfall in September
Oak Hill, OH

Average rainfall in September - Oak Hill, OH
  • Average rainfall in September: 0.75"

The wettest month (with the highest rainfall) is May (1.57").
The driest months (with the least rainfall) are September and November (0.75").

Average rainfall days in September
Oak Hill, OH

Average rainfall days in September - Oak Hill, OH
  • Average rainfall days in September: 7.9 days

The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is November (6.5 days).

Average snowfall in September
Oak Hill, OH

Average snowfall in September - Oak Hill, OH
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Oak Hill, OH

Average snowfall days in September - Oak Hill, OH
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Oak Hill, OH

Average daylight in September / Average sunshine in September - Oak Hill, 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 30min).

  • Average sunshine in September: 8h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in September
Oak Hill, OH

Average sunshine days in September - Oak Hill, OH
  • Average sunshine days in September: 19.2 days

The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is May (13.3 days).

Average UV index in September
Oak Hill, OH

Average UV index in September - Oak Hill, OH
  • Average UV index in September: 4

The months with the highest UV index are May, 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
Oak Hill, OH

Average cloud cover in September - Oak Hill, OH
  • Average cloud cover in September: 36

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in September
Oak Hill, OH

Average visibility in September - Oak Hill, OH
  • Average visibility in September: 5mi

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

Oak Hill, Ohio, USA

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