September weather forecastDillonvale, OH

September

Weather in September

September, the first month of the autumn in Dillonvale, is still a warm month, with an average temperature fluctuating between 75.2°F (24°C) and 55°F (12.8°C).

Temperature

A subtle shift in Dillonvale's weather is observed as August turns into September, with the average high temperature reducing from a warm 81.5°F (27.5°C) to a still moderately hot 75.2°F (24°C). September brings Dillonvale a consistent average low-temperature of 55°F (12.8°C).

Humidity

The average relative humidity in September is 79%.

Rainfall

In Dillonvale, Ohio, in September, during 12.4 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. In Dillonvale, during the entire year, the rain falls for 147 days and collects up to 19.57" (497mm) of precipitation.

Snowfall

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

Sunshine

In Dillonvale, the average sunshine in September is 8.4h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: During September, 4 as the daily maximum UV index converts into the following advice:
Adopt protective measures - It is advised to guard against sun damage. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature during September are 75.2°F (24°C) and 55°F (12.8°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is estimated at 87.8°F (31°C).

The average relative humidity in September is 79%.

In Dillonvale, Ohio, during September, the rain falls for 12.4 days and regularly aggregates up to 1.46" (37mm) of precipitation.

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

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

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

In September, on the first day of the month, 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.

The average sunshine duration in September is 8.4h.

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

  • Average high temperature in September: 75.2°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in September: 55°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure in September
Dillonvale, 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 (29.95"Hg).

Average wind speed in September
Dillonvale, OH

  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

Average humidity in September
Dillonvale, OH

  • Average humidity in September: 79%

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

Average rainfall in September
Dillonvale, OH

  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is May (2.17").
The driest month (with the least rainfall) is January (1.02").

Average rainfall days in September
Dillonvale, OH

  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (6.7 days).

Average snowfall in September
Dillonvale, OH

  • Average snowfall in September: 0"

The months with the highest snowfall are February and March (2.48").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Dillonvale, OH

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Dillonvale, 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 24min

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
Dillonvale, OH

  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (9.9 days).

Average UV index in September
Dillonvale, OH

  • Average UV index in September: 4

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

Average cloud cover in September
Dillonvale, OH

  • Average cloud cover in September: 40

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in September
Dillonvale, OH

  • Average visibility in September: 5mi

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