September weather forecast
Chaneyville, MD

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Weather in September

September, the first month of the autumn in Chaneyville, is also a moderately hot month, with an average temperature varying between 65.1°F (18.4°C) and 76.6°F (24.8°C).

Temperature

September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a warm 82.9°F (28.3°C) in August to a still moderately hot 76.6°F (24.8°C). Chaneyville records an average low of 65.1°F (18.4°C) throughout the nights in September.

Humidity

In September, the average relative humidity is 76%.

Rainfall

In September, the rain falls for 12.3 days. Throughout September, 1.06" (27mm) of precipitation is accumulated. In Chaneyville, during the entire year, the rain falls for 132.3 days and collects up to 15.83" (402mm) of precipitation.

Snowfall

In Chaneyville, snow does not fall in April through October.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:36 am and sunset at 7:36 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:50 pm EDT.

Sunshine

In September, the average sunshine is 9.2h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: A maximum UV index of 5 in September translates into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Jun 17, 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, in September, in Chaneyville, is 76.6°F (24.8°C), while the low-temperature averages to 65.1°F (18.4°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September is 76%.

How much does it rain in September?

In Chaneyville, Maryland, in September, during 12.3 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

When it does not snow in Chaneyville?

April through October are months without snowfall.

How many hours of daylight does Chaneyville have in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:36 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:50 pm EDT.

How many hours of sunshine does Chaneyville have in September?

The average sunshine duration in September is 9.2h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Chaneyville, MD

Average temperature in September - Chaneyville, MD
  • Average high temperature in September: 76.6°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in September: 65.1°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in September
Chaneyville, MD

Average pressure in September - Chaneyville, MD
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Chaneyville, MD

Average wind speed in September - Chaneyville, MD
  • Average wind speed in September: 7.7mph

The windiest months (with the highest average wind speed) are January and March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

Average humidity in September
Chaneyville, MD

Average humidity in September - Chaneyville, MD
  • Average humidity in September: 76%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (72%).

Average rainfall in September
Chaneyville, MD

Average rainfall in September - Chaneyville, MD
  • Average rainfall in September: 1.06"

The wettest month (with the highest rainfall) is August (2.4").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in September
Chaneyville, MD

Average rainfall days in September - Chaneyville, MD
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (6.6 days).

Average snowfall in September
Chaneyville, MD

Average snowfall in September - Chaneyville, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Chaneyville, MD

Average snowfall days in September - Chaneyville, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (2.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Chaneyville, MD

Average daylight in September / Average sunshine in September - Chaneyville, MD
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in September
Chaneyville, MD

Average sunshine days in September - Chaneyville, MD
  • Average sunshine days in September: 16.3 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is August (13.7 days).

Average UV index in September
Chaneyville, MD

Average UV index in September - Chaneyville, MD
  • Average UV index in September: 5

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 and December (UV index 2).

Average cloud cover in September
Chaneyville, MD

Average cloud cover in September - Chaneyville, MD
  • Average cloud cover in September: 33

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in September
Chaneyville, MD

Average visibility in September - Chaneyville, MD
  • 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).

Chaneyville, Maryland, USA

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