September weather forecast
Loch Lynn Heights, MD

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Weather in September

The first month of the autumn, September, is still a pleasant month in Loch Lynn Heights, Maryland, with an average temperature varying between 52.2°F (11.2°C) and 72.3°F (22.4°C).

Temperature

With the onset of September, Loch Lynn Heights experiences a modest temperature adjustment, with the average high-temperature gently receding from a warm 77.7°F (25.4°C) in August to a pleasant 72.3°F (22.4°C). In the month of September, Loch Lynn Heights witnesses a consistent average low-temperature of 52.2°F (11.2°C).

Humidity

The average relative humidity in September is 81%.

Rainfall

In Loch Lynn Heights, during September, the rain falls for 16.8 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, there are 185.9 rainfall days, and 35.16" (893mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 6:46 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:01 pm EDT.

Sunshine

In Loch Lynn Heights, the average sunshine in September is 8.3h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Boost your sun resistance with garments that are densely woven yet spacious.

Frequently asked questions

What is the average September temperature?

An average high-temperature, in September, in Loch Lynn Heights, is 72.3°F (22.4°C) and the average low-temperature is 52.2°F (11.2°C).

What is the average humidity in September?

In September, the average relative humidity is 81%.

How many days does it rain in September?

In Loch Lynn Heights, in September, during 16.8 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in Loch Lynn Heights in September?

In Loch Lynn Heights, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

The average day length in September is 12h and 26min.

What time are sunrise and sunset in September in Loch Lynn Heights?

On the first day of September, sunrise is at 6:46 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:01 pm EDT.

How many hours of sunshine does Loch Lynn Heights have in September?

In Loch Lynn Heights, Maryland, the average sunshine duration in September is 8.3h.

How high is the UV index in September?

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Loch Lynn Heights, MD

Average temperature in September - Loch Lynn Heights, MD
  • Average high temperature in September: 72.3°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in September: 52.2°F

The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

Average pressure in September
Loch Lynn Heights, MD

Average pressure in September - Loch Lynn Heights, MD
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Loch Lynn Heights, MD

Average wind speed in September - Loch Lynn Heights, MD
  • Average wind speed in September: 5.2mph

The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in September
Loch Lynn Heights, MD

Average humidity in September - Loch Lynn Heights, MD
  • Average humidity in September: 81%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is July (78%).

Average rainfall in September
Loch Lynn Heights, MD

Average rainfall in September - Loch Lynn Heights, MD
  • Average rainfall in September: 2.28"

The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is November (2.24").

Average rainfall days in September
Loch Lynn Heights, MD

Average rainfall days in September - Loch Lynn Heights, MD
  • Average rainfall days in September: 16.8 days

The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is February (9.3 days).

Average snowfall in September
Loch Lynn Heights, MD

Average snowfall in September - Loch Lynn Heights, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is February (7.6").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Loch Lynn Heights, MD

Average snowfall days in September - Loch Lynn Heights, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Loch Lynn Heights, MD

Average daylight in September / Average sunshine in September - Loch Lynn Heights, 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 24min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in September
Loch Lynn Heights, MD

Average sunshine days in September - Loch Lynn Heights, MD
  • Average sunshine days in September: 10.5 days

The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is May (6.9 days).

Average UV index in September
Loch Lynn Heights, MD

Average UV index in September - Loch Lynn Heights, MD
  • Average UV index in September: 4

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in September
Loch Lynn Heights, MD

Average cloud cover in September - Loch Lynn Heights, MD
  • Average cloud cover in September: 44

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 40).

Average visibility in September
Loch Lynn Heights, MD

Average visibility in September - Loch Lynn Heights, MD
  • Average visibility in September: 4mi

The months with the highest visibility are March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February and September (4mi).

Loch Lynn Heights, Maryland, USA

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