September weather forecast
Hilliard, OH

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Hilliard, Ohio, with an average temperature varying between 57.4°F (14.1°C) and 75°F (23.9°C).

Temperature

September brings a minor shift in the average high-temperature, adjusting from a warm 81.1°F (27.3°C) in August to a still moderately hot 75°F (23.9°C). In September, Hilliard reports a consistent average low-temperature of 57.4°F (14.1°C) during the nights.

Humidity

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

Rainfall

The month with the least rainfall in Hilliard is September, when the rain falls for 14.2 days and typically collects 2.09" (53mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day in Hilliard is 12h and 26min.
On the first day of the month, sunrise is at 7:01 am and sunset at 8:03 pm. On the last day of September, in Hilliard, sunrise is at 7:28 am and sunset at 7:16 pm EDT.

Sunshine

The average sunshine in September is 8.1h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Hilliard in September?

During September, Hilliard experiences an average high-temperature of 75°F (23.9°C) and a low-temperature of 57.4°F (14.1°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 86°F (30°C).

What is the average humidity in September?

In September, the average relative humidity is 75%.

What is the driest month?

September is the month with the least rainfall in Hilliard, Ohio. Rain falls for 14.2 days and accumulates 2.09" (53mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 14.2 days. Throughout September, 2.09" (53mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in Hilliard in September?

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

How many hours of daylight does Hilliard have in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 7:01 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:16 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.1h.

What is the UV index reading in September?

In Hilliard, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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
Hilliard, OH

Average temperature in September - Hilliard, OH
  • Average high temperature in September: 75°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.1°F).

  • Average low temperature in September: 57.4°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in September
Hilliard, OH

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

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Hilliard, OH

Average wind speed in September - Hilliard, OH
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in September
Hilliard, OH

Average humidity in September - Hilliard, OH
  • Average humidity in September: 75%

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are April, October and November (74%).

Average rainfall in September
Hilliard, OH

Average rainfall in September - Hilliard, OH
  • Average rainfall in September: 2.09"

The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is September (2.09").

Average rainfall days in September
Hilliard, OH

Average rainfall days in September - Hilliard, OH
  • Average rainfall days in September: 14.2 days

The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (9 days).

Average snowfall in September
Hilliard, OH

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

The months with the highest snowfall are January and February (3.39").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Hilliard, OH

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

The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Hilliard, 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 August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in September
Hilliard, OH

Average sunshine days in September - Hilliard, OH
  • Average sunshine days in September: 13.8 days

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is May (9.3 days).

Average UV index in September
Hilliard, OH

Average UV index in September - Hilliard, 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
Hilliard, OH

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

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in September
Hilliard, OH

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

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

Hilliard, Ohio, USA

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