September weather forecast
Bel Alton, MD

Share

Weather in September

The first month of the autumn, September, is still a warm month in Bel Alton, Maryland, with an average temperature ranging between max 78.6°F (25.9°C) and min 61.9°F (16.6°C).

Temperature

As September begins, there is a minor decrease in the average high-temperature, softly falling from a warm 85.1°F (29.5°C) in August to a still moderately hot 78.6°F (25.9°C). Bel Alton's September nights cool down to an average low-temperature of 61.9°F (16.6°C).

Humidity

The average relative humidity in September is 77%.

Rainfall

In Bel Alton, in September, it is raining for 12.1 days, with typically 2.05" (52mm) of accumulated precipitation. Throughout the year, there are 151.4 rainfall days, and 29.33" (745mm) of precipitation is accumulated.

Snowfall

In Bel Alton, snow does not fall in May through October.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of September, sunrise is at 6:37 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:51 pm EDT.

Sunshine

The average sunshine in September is 8.7h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 5 in September translates into these instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

The average high-temperature and low-temperature in Bel Alton during September are 78.6°F (25.9°C) and 61.9°F (16.6°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is evaluated at 95°F (35°C).

What is the average humidity in September?

The average relative humidity in September is 77%.

How much does it rain in September?

In September, the rain falls for 12.1 days. Throughout September, 2.05" (52mm) of precipitation is accumulated.

When it does not snow in Bel Alton?

In Bel Alton, snow does not fall in May through October.

What is the average length of the day in September?

The average day length in September in Bel Alton is 12h and 25min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:37 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:51 pm EDT.

How long on average sun shines in September?

In Bel Alton, Maryland, the average sunshine duration in September is 8.7h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health risk 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
Bel Alton, MD

Average temperature in September - Bel Alton, MD
  • Average high temperature in September: 78.6°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in September: 61.9°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in September
Bel Alton, MD

Average pressure in September - Bel Alton, MD
  • 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
Bel Alton, MD

Average wind speed in September - Bel Alton, MD
  • Average wind speed in September: 5.8mph

The windiest months (with the highest average wind speed) are March and April (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in September
Bel Alton, MD

Average humidity in September - Bel Alton, MD
  • Average humidity in September: 77%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March and April (73%).

Average rainfall in September
Bel Alton, MD

Average rainfall in September - Bel Alton, MD
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is January (1.85").

Average rainfall days in September
Bel Alton, MD

Average rainfall days in September - Bel Alton, MD
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in September
Bel Alton, MD

Average snowfall in September - Bel Alton, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.32").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Bel Alton, MD

Average snowfall days in September - Bel Alton, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.3 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
Bel Alton, MD

Average daylight in September / Average sunshine in September - Bel Alton, 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: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).

Average sunshine days in September
Bel Alton, MD

Average sunshine days in September - Bel Alton, MD
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11.4 days).

Average UV index in September
Bel Alton, MD

Average UV index in September - Bel Alton, 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
Bel Alton, MD

Average cloud cover in September - Bel Alton, MD
  • Average cloud cover in September: 38

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Bel Alton, MD

Average visibility in September - Bel Alton, MD
  • Average visibility in September: 6mi

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

Bel Alton, Maryland, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location