September weather forecast
Dowell, MD

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Weather in September

September, the first month of the autumn in Dowell, is also a moderately hot month, with an average temperature ranging between min 65.8°F (18.8°C) and max 77.2°F (25.1°C).

Temperature

September brings a slight decrease in temperature, down from 83.1°F (28.4°C) in August to a still moderately hot 77.2°F (25.1°C). Throughout the September nights, Dowell encounters a low-temperature of 65.8°F (18.8°C).

Humidity

The average relative humidity in September is 76%.

Rainfall

In Dowell, during September, the rain falls for 14.1 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Dowell, during the entire year, the rain falls for 160.6 days and collects up to 34.49" (876mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Dowell, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 6:35 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:49 pm EDT.

Sunshine

In Dowell, the average sunshine in September is 9.1h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

An average high-temperature, in September, in Dowell, is 77.2°F (25.1°C) and the average low-temperature is 65.8°F (18.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is estimated at 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September in Dowell, Maryland, is 76%.

How much does it rain in September?

In Dowell, during September, the rain falls for 14.1 days and regularly aggregates up to 2.76" (70mm) of precipitation.

When it does not snow?

May through October are months without snowfall.

What is the average length of the day in September in Dowell?

In September, the average day length is 12h and 25min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:35 am and sunset at 7:35 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 September, the average sunshine duration is 9.1h.

What is the UV index reading in September?

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to 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
Dowell, MD

Average temperature in September - Dowell, MD
  • Average high temperature in September: 77.2°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 (41.7°F).

  • Average low temperature in September: 65.8°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure in September
Dowell, MD

Average pressure in September - Dowell, MD
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Dowell, MD

Average wind speed in September - Dowell, MD
  • Average wind speed in September: 8mph

The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

Average humidity in September
Dowell, MD

Average humidity in September - Dowell, 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, March and November (73%).

Average rainfall in September
Dowell, MD

Average rainfall in September - Dowell, MD
  • Average rainfall in September: 2.76"

The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is January (1.93").

Average rainfall days in September
Dowell, MD

Average rainfall days in September - Dowell, MD
  • Average rainfall days in September: 14.1 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in September
Dowell, MD

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

The month with the highest snowfall is January (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Dowell, MD

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

The month with the highest number of snowfall days is January (3.5 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
Dowell, MD

Average daylight in September / Average sunshine in September - Dowell, 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 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in September
Dowell, MD

Average sunshine days in September - Dowell, MD
  • Average sunshine days in September: 14.3 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is August (10.7 days).

Average UV index in September
Dowell, MD

Average UV index in September - Dowell, 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
Dowell, MD

Average cloud cover in September - Dowell, MD
  • Average cloud cover in September: 35

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in September
Dowell, MD

Average visibility in September - Dowell, 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).

Dowell, Maryland, USA

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