September weather forecast
Langlois, OR

Weather in September

The first month of the autumn, September, is still a comfortable month in Langlois, Oregon, with average temperature fluctuating between 53.6°F (12°C) and 65.3°F (18.5°C).

Temperature

In Langlois, the average high-temperature is relatively the same as in August - a still comfortable 65.3°F (18.5°C). The average low-temperature, in September, is 53.6°F (12°C).

Humidity

In September, the average relative humidity is 81%.

Rainfall

In September, the rain falls for 7.2 days. Throughout September, 1.1" (28mm) of precipitation is accumulated. In Langlois, during the entire year, the rain falls for 148.6 days and collects up to 34.13" (867mm) of precipitation.

Snowfall

In Langlois snow does not fall in January, March through December.

Daylight

In Langlois, the average length of the day in September is 12.5h.

Sunshine

In Langlois, the average sunshine in September is 9.9h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 average humidity in September in Langlois?

In September, the average relative humidity in Langlois is 81%.

How much does it rain in Langlois in September?

In Langlois, Oregon, during September, the rain falls for 7.2 days and regularly aggregates up to 1.1" (28mm) of precipitation.

When it does not snow in Langlois?

January, March through December are months without snowfall in Langlois, Oregon.

How many hours of daylight does Langlois have in September?

The average length of the day in September in Langlois is 12.5h.

How many hours of sunshine does Langlois have in September?

The average sunshine in September in Langlois, Oregon, is 9.9h.

What is the UV index intensity in September in Langlois?

In Langlois, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in September
Langlois, OR

Average temperature in September - Langlois, OR
  • Average high temperature in September: 65.3°F

The warmest month (with the highest average high temperature) is August (66°F).
The month with the lowest average high temperature is December (50.5°F).

  • Average low temperature in September: 53.6°F

The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is February (43°F).

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Average pressure in September
Langlois, OR

Average pressure in September - Langlois, OR
  • Average pressure in September: 30.01"

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is September (30.01").

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Average wind speed in September
Langlois, OR

Average wind speed in September - Langlois, OR
  • Average wind speed in September: 8.1mph

The windiest month (with the highest average wind speed) is March (10.4mph).
The calmest months (with the lowest average wind speed) are August and September (8.1mph).

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Average humidity in September
Langlois, OR

Average humidity in September - Langlois, OR
  • Average humidity in September: 81%

The month with the highest relative humidity is August (84%).
Months with the lowest relative humidity are April, October and December (80%).

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Average rainfall in September
Langlois, OR

Average rainfall in September - Langlois, OR
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is December (5.83").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in September
Langlois, OR

Average rainfall days in September - Langlois, OR
  • Average rainfall days in September: 7.2 days

The month with the highest number of rainy days is March (18.9 days).
Months with the least rainy days are July and August (3.6 days).

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Average snowfall in September
Langlois, OR

Average snowfall in September - Langlois, OR
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.39").
Months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Langlois, OR

Average snowfall days in September - Langlois, OR
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.3 days).
Months with the least snowfall days are March, April, May, June, July, August, September, October and December (0 days).

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Average daylight in September /
Average sunshine in September
Langlois, OR

Average daylight in September / Average sunshine in September - Langlois, OR
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in September: 9.9h

Months with the most sunshine are July and August (Average sunshine: 11.2h).
The month with the least sunshine is January (Average sunshine: 4.6h).

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Average sunshine days in September
Langlois, OR

Average sunshine days in September - Langlois, OR
  • Average sunshine days in September: 21.7 days

The month with the most sunshine days is July (25 days).
The month with the least sunshine days is March (10.4 days).

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Average UV index in September
Langlois, OR

Average UV index in September - Langlois, OR
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 2).

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Average cloud cover in September
Langlois, OR

Average cloud cover in September - Langlois, OR
  • Average cloud cover in September: 25

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 24).

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Average visibility in September
Langlois, OR

Average visibility in September - Langlois, OR
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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