September weather forecast
Westover, MD

Weather in September

September, the first month of the autumn in Westover, is also a moderately hot month, with temperature in the range of an average low of 65.8°F (18.8°C) and an average high of 77°F (25°C).

Temperature

In September, the average high-temperature slightly decreases from a moderately hot 82.8°F (28.2°C) in August to a still warm 77°F (25°C). In Westover, the average low-temperature is 65.8°F (18.8°C).

Humidity

The average relative humidity in September is 78%.

Rainfall

In September, in Westover, the rain falls for 13.8 days. Throughout September, 2.2" (56mm) of precipitation is accumulated. In Westover, during the entire year, the rain falls for 158.2 days and collects up to 29.96" (761mm) of precipitation.

Snowfall

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

Daylight

In Westover, the average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 6:32 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:48 pm EDT.

Sunshine

In September, the average sunshine in Westover is 9.5h.

UV index

In Westover, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Westover?

The average high-temperature, in September, is 77°F (25°C), while the average low-temperature is 65.8°F (18.8°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in August is calculated to be 89.6°F (32°C).

What is the average humidity in September in Westover?

In Westover, the average relative humidity in September is 78%.

How many days does it rain in September in Westover?

In Westover, Maryland, during September, the rain falls for 13.8 days and regularly aggregates up to 2.2" (56mm) of precipitation.

When it does not snow in Westover?

In Westover, Maryland, snow does not fall in April through October.

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

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

What time are sunrise and sunset in September in Westover?

On the first day of September, sunrise is at 6:32 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:48 pm EDT.

How many hours of sunshine does Westover have in September?

In Westover, the average sunshine duration in September is 9.5h.

How high is the UV index in September in Westover?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Westover, MD

Average temperature in September - Westover, MD
  • Average high temperature in September: 77°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (42.1°F).

  • Average low temperature in September: 65.8°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

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Average pressure in September
Westover, MD

Average pressure in September - Westover, 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).

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Average wind speed in September
Westover, MD

Average wind speed in September - Westover, MD
  • Average wind speed in September: 8.2mph

The windiest months (with the highest average wind speed) are January, February and March (10.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).

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Average humidity in September
Westover, MD

Average humidity in September - Westover, MD
  • Average humidity in September: 78%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is January (74%).

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Average rainfall in September
Westover, MD

Average rainfall in September - Westover, MD
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is August (3.46").
The driest month (with the least rainfall) is January (1.93").

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Average rainfall days in September
Westover, MD

Average rainfall days in September - Westover, MD
  • Average rainfall days in September: 13.8 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (9.7 days).

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Average snowfall in September
Westover, MD

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

The month with the highest snowfall is January (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Westover, MD

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

The month with the highest number of snowfall days is January (3.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Westover, 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 36min).

  • Average sunshine in September: 9h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are February and December (Average sunshine: 5h and 18min).

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Average sunshine days in September
Westover, MD

Average sunshine days in September - Westover, MD
  • Average sunshine days in September: 13.8 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is August (9.8 days).

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Average UV index in September
Westover, MD

Average UV index in September - Westover, 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).

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Average cloud cover in September
Westover, MD

Average cloud cover in September - Westover, MD
  • Average cloud cover in September: 31

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in September
Westover, MD

Average visibility in September - Westover, 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).

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