September weather forecastAdena, OH

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Adena, Ohio, with temperature in the range of an average low of 55°F (12.8°C) and an average high of 74.8°F (23.8°C).

Temperature

Adena's progression into September involves a gentle drop in the average high-temperature, from a warm 81.1°F (27.3°C) in August to a still moderately hot 74.8°F (23.8°C). An average nighttime temperature of 55°F (12.8°C) is observed during September.

Humidity

In September, the average relative humidity is 79%.

Rainfall

September is the month with the least rainfall. Rain falls for 14.9 days and accumulates 2.17" (55mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Adena, the average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:51 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:06 pm EDT.

Sunshine

In Adena, the average sunshine in September is 8.3h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. To protect against the Sun's most potent rays, avoid direct exposure around midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In September, in Adena, the average high-temperature is 74.8°F (23.8°C), and the average low-temperature is 55°F (12.8°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is appraised at 86°F (30°C).

The average relative humidity in September is 79%.

The month with the least rainfall is September, when the rain falls for 14.9 days and typically collects 2.17" (55mm) of precipitation.

In Adena, during September, the rain falls for 14.9 days and regularly aggregates up to 2.17" (55mm) of precipitation.

In Adena, snow does not fall in June through September.

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

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

On the first day of September, sunrise is at 6:51 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:06 pm EDT.

In Adena, the average sunshine duration in September is 8.3h.

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Adena, OH

  • Average high temperature in September: 74.8°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in September: 55°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in September
Adena, OH

  • Average pressure in September: 30.05"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
Adena, OH

  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in September
Adena, OH

  • Average humidity in September: 79%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is April (77%).

Average rainfall in September
Adena, OH

  • Average rainfall in September: 2.17"

The wettest months (with the highest rainfall) are April and May (3.19").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in September
Adena, OH

  • Average rainfall days in September: 14.9 days

The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (9.8 days).

Average snowfall in September
Adena, OH

  • Average snowfall in September: 0"

The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Adena, OH

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in September: 12h and 24min

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 18min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in September
Adena, OH

  • Average sunshine days in September: 13 days

The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is February (8.4 days).

Average UV index in September
Adena, 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
Adena, OH

  • Average cloud cover in September: 40

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in September
Adena, 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).