September weather forecast
Wilson Creek, WA

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Weather in September

The first month of the autumn, September, is still a warm month in Wilson Creek, Washington, with an average temperature fluctuating between 55.2°F (12.9°C) and 75.9°F (24.4°C).

Temperature

September's arrival correlates with a reduction in the average high-temperature, down from a hot 86.9°F (30.5°C) in August to a warm 75.9°F (24.4°C). Throughout September nights, Wilson Creek registers an average low-temperature of 55.2°F (12.9°C).

Humidity

The average relative humidity in September in Wilson Creek, Washington, is 44%.

Rainfall

In September, in Wilson Creek, the rain falls for 5.4 days. Throughout September, 0.31" (8mm) of precipitation is accumulated. Throughout the year, in Wilson Creek, there are 103.1 rainfall days, and 7.8" (198mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, September, November and December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, in Wilson Creek, there are 20.9 snowfall days, and 8.07" (205mm) of snow is accumulated.

Daylight

In September, the average length of the day is 12h and 32min.
On the first day of September, sunrise is at 6:16 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:37 pm PDT.

Sunshine

The average sunshine in September in Wilson Creek is 10.8h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. It's recommended to limit sun exposure when its radiation is at its peak during midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the average September temperature in Wilson Creek?

Wilson Creek in September has an average high-temperature of 75.9°F (24.4°C) and an average low-temperature of 55.2°F (12.9°C).

What is the average humidity in September in Wilson Creek?

In September, the average relative humidity is 44%.

How many days does it rain in September in Wilson Creek?

In Wilson Creek, during September, the rain falls for 5.4 days and regularly aggregates up to 0.31" (8mm) of precipitation.

When does it start to snow in Wilson Creek?

September is the first month it typically snows in Wilson Creek, Washington. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in September in Wilson Creek?

The average day length in September in Wilson Creek, Washington, is 12h and 32min.

What time are sunrise and sunset in September in Wilson Creek?

On the first day of September in Wilson Creek, sunrise is at 6:16 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:37 pm PDT.

How many hours of sunshine does Wilson Creek have in September?

The average sunshine duration in September is 10.8h.

What is the UV index intensity in September in Wilson Creek?

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Wilson Creek, WA

Average temperature in September - Wilson Creek, WA
  • Average high temperature in September: 75.9°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is December (34°F).

  • Average low temperature in September: 55.2°F

The month with the highest average low temperature is August (62.2°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).

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Average pressure in September
Wilson Creek, WA

Average pressure in September - Wilson Creek, WA
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in September
Wilson Creek, WA

Average wind speed in September - Wilson Creek, WA
  • Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest months (with the lowest average wind speed) are January and December (5.5mph).

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Average humidity in September
Wilson Creek, WA

Average humidity in September - Wilson Creek, WA
  • Average humidity in September: 44%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are July and August (36%).

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Average rainfall in September
Wilson Creek, WA

Average rainfall in September - Wilson Creek, WA
  • Average rainfall in September: 0.31"

The wettest month (with the highest rainfall) is January (1.02").
The driest month (with the least rainfall) is August (0.2").

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Average rainfall days in September
Wilson Creek, WA

Average rainfall days in September - Wilson Creek, WA
  • Average rainfall days in September: 5.4 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is July (3.8 days).

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Average snowfall in September
Wilson Creek, WA

Average snowfall in September - Wilson Creek, WA
  • Average snowfall in September: 0.04"

The month with the highest snowfall is December (2.6").
The months with the least snowfall are May, June, July, August and October (0").

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Average snowfall days in September
Wilson Creek, WA

Average snowfall days in September - Wilson Creek, WA
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is December (6.8 days).
The months with the least snowfall days are May, June, July, August and October (0 days).

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Average daylight in September /
Average sunshine in September
Wilson Creek, WA

Average daylight in September / Average sunshine in September - Wilson Creek, WA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in September: 10h and 5min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

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Average sunshine days in September
Wilson Creek, WA

Average sunshine days in September - Wilson Creek, WA
  • Average sunshine days in September: 23.4 days

The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is March (14.2 days).

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Average UV index in September
Wilson Creek, WA

Average UV index in September - Wilson Creek, WA
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 7).
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
Wilson Creek, WA

Average cloud cover in September - Wilson Creek, WA
  • Average cloud cover in September: 16

The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 11).

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Average visibility in September
Wilson Creek, WA

Average visibility in September - Wilson Creek, WA
  • Average visibility in September: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).

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Wilson Creek, Washington, USA

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