September weather forecast
Westover, MD

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Weather in September

September, the first month of the autumn in Westover, is still a warm month, with an average temperature ranging between max 77°F (25°C) and min 65.8°F (18.8°C).

Temperature

September is characterized by a slight reduction in average high-temperature, easing from 82.8°F (28.2°C) in August to a still moderately hot 77°F (25°C). The average temperature during September nights in Westover is registered at an enjoyable 65.8°F (18.8°C).

Humidity

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

Rainfall

In Westover, in September, during 13.8 rainfall days, 2.2" (56mm) of precipitation is typically 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

The average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 6:33 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:46 pm EDT.

Sunshine

The average sunshine in September is 9.5h.

UV index

In Westover, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Exercise prevention - Warding off sunburn is urged. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Experience reduced UV exposure by about half when donning a wide-brim hat.

Frequently asked questions

What is the usual temperature for Westover in September?

In Westover, 77°F (25°C) is the average high-temperature and 65.8°F (18.8°C) is the average low-temperature during September. In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September is 78%.

How many days does it rain in September?

In Westover, in September, it is raining for 13.8 days, with typically 2.2" (56mm) of accumulated precipitation.

When it does not snow?

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

How many hours of daylight does Westover have in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:33 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:46 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9.5h.

What is the UV index intensity in September?

In Westover, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Westover, Maryland, USA

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