September weather forecast
Threemile Oak Corner, MD

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Weather in September

September, the first month of the autumn in Threemile Oak Corner, is still a warm month, with an average temperature fluctuating between 77°F (25°C) and 64.6°F (18.1°C).

Temperature

A mild drop in Threemile Oak Corner's average high-temperature is observed in September, transitioning from 83.3°F (28.5°C) in August to a still moderately hot 77°F (25°C). The average temperature during September nights is registered at a comfortable 64.6°F (18.1°C).

Humidity

The average relative humidity in September is 75%.

Rainfall

In September, the rain falls for 10.5 days. Throughout September, 0.63" (16mm) of precipitation is accumulated. Throughout the year, there are 120.4 rainfall days, and 10.47" (266mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:35 am and sunset at 7:36 pm. On the last day of September, in Threemile Oak Corner, sunrise is at 7:01 am and sunset at 6:49 pm EDT.

Sunshine

In September, the average sunshine is 9.2h.

UV index

In Threemile Oak Corner, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 5 during September translates into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

An average high-temperature, in September, in Threemile Oak Corner, is 77°F (25°C) and the average low-temperature is 64.6°F (18.1°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is appraised at 89.6°F (32°C).

What is the average humidity in September?

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

How many days does it rain in September?

In Threemile Oak Corner, in September, during 10.5 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in September in Threemile Oak Corner?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:35 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:49 pm EDT.

How long on average sun shines in September in Threemile Oak Corner?

In Threemile Oak Corner, the average sunshine duration in September is 9.2h.

How high is the UV index in September?

In Threemile Oak Corner, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
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
Threemile Oak Corner, MD

Average temperature in September - Threemile Oak Corner, MD
  • Average high temperature in September: 77°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 (40.3°F).

  • Average low temperature in September: 64.6°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in September
Threemile Oak Corner, MD

Average pressure in September - Threemile Oak Corner, 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
Threemile Oak Corner, MD

Average wind speed in September - Threemile Oak Corner, MD
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in September
Threemile Oak Corner, MD

Average humidity in September - Threemile Oak Corner, MD
  • Average humidity in September: 75%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

Average rainfall in September
Threemile Oak Corner, MD

Average rainfall in September - Threemile Oak Corner, MD
  • Average rainfall in September: 0.63"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in September
Threemile Oak Corner, MD

Average rainfall days in September - Threemile Oak Corner, MD
  • Average rainfall days in September: 10.5 days

The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).

Average snowfall in September
Threemile Oak Corner, MD

Average snowfall in September - Threemile Oak Corner, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Threemile Oak Corner, MD

Average snowfall days in September - Threemile Oak Corner, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.5 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
Threemile Oak Corner, MD

Average daylight in September / Average sunshine in September - Threemile Oak Corner, MD
  • 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: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in September
Threemile Oak Corner, MD

Average sunshine days in September - Threemile Oak Corner, MD
  • Average sunshine days in September: 17.4 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).

Average UV index in September
Threemile Oak Corner, MD

Average UV index in September - Threemile Oak Corner, 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, February and December (UV index 2).

Average cloud cover in September
Threemile Oak Corner, MD

Average cloud cover in September - Threemile Oak Corner, MD
  • Average cloud cover in September: 33

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in September
Threemile Oak Corner, MD

Average visibility in September - Threemile Oak Corner, 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).

Threemile Oak Corner, Maryland, USA

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