September weather forecast
Lochearn, MD

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Weather in September

The first month of the autumn, September, is still a warm month in Lochearn, Maryland, with temperature in the range of an average high of 76.5°F (24.7°C) and an average low of 60.3°F (15.7°C).

Temperature

As August transitions into September, Lochearn sees a gentle drop in the average high-temperature, transitioning from a moderately hot 83.1°F (28.4°C) to a still warm 76.5°F (24.7°C). The low-temperature average for Lochearn during September stands at a refreshing 60.3°F (15.7°C).

Humidity

In September, the average relative humidity in Lochearn is 76%.

Rainfall

In Lochearn, in September, during 13.5 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, there are 160.6 rainfall days, and 31.3" (795mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:36 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:50 pm EDT.

Sunshine

In September, the average sunshine is 9.1h.

UV index

In September, the average daily maximum UV index in Lochearn is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index, 5 during September, leads to the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

What is the temperature in September in Lochearn?

In Lochearn, in September, the average high-temperature is 76.5°F (24.7°C), and the average low-temperature is 60.3°F (15.7°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 89.6°F (32°C).

What is the average humidity in September in Lochearn?

In Lochearn, Maryland, the average relative humidity in September is 76%.

How much does it rain in Lochearn in September?

In Lochearn, Maryland, in September, during 13.5 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

When it does not snow in Lochearn?

In Lochearn, snow does not fall in May through October.

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

In Lochearn, Maryland, the average day length in September is 12h and 26min.

When are sunrise and sunset in September in Lochearn?

In September, on the first day of the month, sunrise is at 6:36 am and sunset at 7:37 pm. On the last day of the month, in Lochearn, sunrise is at 7:02 am and sunset at 6:50 pm EDT.

How many hours of sunshine does Lochearn have in September?

In September, the average sunshine duration in Lochearn, Maryland, is 9.1h.

What is the UV index intensity in September in Lochearn?

The average daily maximum UV index in September in Lochearn, Maryland, is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Lochearn, MD

Average temperature in September - Lochearn, MD
  • Average high temperature in September: 76.5°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in September: 60.3°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in September
Lochearn, MD

Average pressure in September - Lochearn, 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 (29.94"Hg).

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Average wind speed in September
Lochearn, MD

Average wind speed in September - Lochearn, MD
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in September
Lochearn, MD

Average humidity in September - Lochearn, MD
  • Average humidity in September: 76%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is July (72%).

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Average rainfall in September
Lochearn, MD

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

The wettest month (with the highest rainfall) is August (3.94").
The driest months (with the least rainfall) are January and February (2.01").

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Average rainfall days in September
Lochearn, MD

Average rainfall days in September - Lochearn, MD
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (8.8 days).

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Average snowfall in September
Lochearn, MD

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

The month with the highest snowfall is March (2.72").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Lochearn, MD

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

The months with the highest number of snowfall days are January and February (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Lochearn, 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).

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Average sunshine days in September
Lochearn, MD

Average sunshine days in September - Lochearn, MD
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (10.7 days).

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Average UV index in September
Lochearn, MD

Average UV index in September - Lochearn, 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, November and December (UV index 2).

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Average cloud cover in September
Lochearn, MD

Average cloud cover in September - Lochearn, MD
  • Average cloud cover in September: 35

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in September
Lochearn, MD

Average visibility in September - Lochearn, 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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Lochearn, Maryland, USA

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