September weather forecast
Round View, MD

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Round View, Maryland, with an average temperature varying between 77°F (25°C) and 64.6°F (18.1°C).

Temperature

As September begins, there is a minor decrease in the average high-temperature, softly falling from 83.3°F (28.5°C) in August to a still warm 77°F (25°C). In the month of September, Round View's average low-temperature falls to a refreshing 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 September, 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.

Sunshine

In September, the average sunshine is 9.2h.

UV index

In Round View, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Put precautions into practice - Protective measures against sun-induced damage are advised. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.

Frequently asked questions

What is the average September temperature?

In September, in Round View, the average high-temperature is 77°F (25°C), and the average low-temperature is 64.6°F (18.1°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is appraised at 89.6°F (32°C).

What is the average humidity in September?

In Round View, the average relative humidity in September is 75%.

How many days does it rain in September?

In Round View, in September, it is raining for 10.5 days, with typically 0.63" (16mm) of accumulated precipitation.

When it does not snow?

In Round View, snow does not fall in April through October.

How many hours of daylight does Round View have in September?

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 7:35 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 Round View?

The average sunshine duration in September is 9.2h.

How high is the UV index in September in Round View?

The average daily maximum UV index in September is 5. A UV Index estimate 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
Round View, MD

Average temperature in September - Round View, 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
Round View, MD

Average pressure in September - Round View, 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
Round View, MD

Average wind speed in September - Round View, 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
Round View, MD

Average humidity in September - Round View, 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
Round View, MD

Average rainfall in September - Round View, 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
Round View, MD

Average rainfall days in September - Round View, 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
Round View, MD

Average snowfall in September - Round View, 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
Round View, MD

Average snowfall days in September - Round View, 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
Round View, MD

Average daylight in September / Average sunshine in September - Round View, 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
Round View, MD

Average sunshine days in September - Round View, 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
Round View, MD

Average UV index in September - Round View, 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
Round View, MD

Average cloud cover in September - Round View, 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
Round View, MD

Average visibility in September - Round View, 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).

Round View, Maryland, USA

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