September weather forecast
Anatone, WA

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Weather in September

September, the first month of the autumn in Anatone, is still a pleasant month, with temperature in the range of an average low of 48.7°F (9.3°C) and an average high of 73°F (22.8°C).

Temperature

In Anatone, the average high-temperature in September decreases from a warm 82.9°F (28.3°C) in August to a pleasant 73°F (22.8°C). With a notable disparity from daily peak temperatures, the average low-temperature in Anatone settles at a chilly 48.7°F (9.3°C) throughout September.

Humidity

In September, the average relative humidity in Anatone is 51%.

Rainfall

In Anatone, in September, it is raining for 6.5 days, with typically 0.51" (13mm) of accumulated precipitation. In Anatone, during the entire year, the rain falls for 116.8 days and collects up to 10.16" (258mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, in Anatone, there are 33.1 snowfall days, and 12.24" (311mm) of snow is accumulated.

Daylight

The average length of the day in September in Anatone is 12h and 31min.
On the first day of the month, sunrise is at 6:10 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:46 am and sunset at 6:29 pm PDT.

Sunshine

The average sunshine in September in Anatone is 10.3h.

UV index

The average daily maximum UV index in September in Anatone is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 4 during September leads to these advisories:
Guard yourself - An obligation to protect skin and eyes from harm exists. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

What are September temperatures in Anatone?

The average high-temperature, in September, in Anatone, is 73°F (22.8°C), while the average low-temperature is 48.7°F (9.3°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is estimated at 82.4°F (28°C).

What is the average humidity in September in Anatone?

The average relative humidity in September in Anatone is 51%.

How much does it rain in Anatone in September?

In Anatone, in September, during 6.5 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

When does it start snowing in Anatone?

September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow.

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

In Anatone, the average day length in September is 12h and 31min.

What time are sunrise and sunset in September in Anatone?

On the first day of September in Anatone, Washington, sunrise is at 6:10 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:29 pm PDT.

How long on average sun shines in September in Anatone?

In Anatone, the average sunshine duration in September is 10.3h.

How high is the UV index in September in Anatone?

The average daily maximum UV index in September in Anatone, Washington, is 4. A UV Index value 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
Anatone, WA

Average temperature in September - Anatone, WA
  • Average high temperature in September: 73°F

The warmest month (with the highest average high temperature) is August (82.9°F).
The month with the lowest average high temperature is December (34.9°F).

  • Average low temperature in September: 48.7°F

The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is December (22.3°F).

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Average pressure in September
Anatone, WA

Average pressure in September - Anatone, WA
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in September
Anatone, WA

Average wind speed in September - Anatone, WA
  • Average wind speed in September: 4.3mph

The windiest months (with the highest average wind speed) are March and April (5.8mph).
The calmest months (with the lowest average wind speed) are August and September (4.3mph).

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Average humidity in September
Anatone, WA

Average humidity in September - Anatone, WA
  • Average humidity in September: 51%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (43%).

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Average rainfall in September
Anatone, WA

Average rainfall in September - Anatone, WA
  • Average rainfall in September: 0.51"

The wettest month (with the highest rainfall) is May (1.46").
The driest month (with the least rainfall) is August (0.39").

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Average rainfall days in September
Anatone, WA

Average rainfall days in September - Anatone, WA
  • Average rainfall days in September: 6.5 days

The month with the highest number of rainy days is April (14.8 days).
The month with the least rainy days is August (6.3 days).

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Average snowfall in September
Anatone, WA

Average snowfall in September - Anatone, WA
  • Average snowfall in September: 0.08"

The month with the highest snowfall is February (4.25").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Anatone, WA

Average snowfall days in September - Anatone, WA
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (8.1 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in September /
Average sunshine in September
Anatone, WA

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

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in September: 10h and 2min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and February (Average sunshine: 4h and 42min).

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Average sunshine days in September
Anatone, WA

Average sunshine days in September - Anatone, WA
  • Average sunshine days in September: 21.5 days

The month with the most sunshine days is July (21.8 days).
The month with the least sunshine days is April (12.6 days).

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Average UV index in September
Anatone, WA

Average UV index in September - Anatone, WA
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in September
Anatone, WA

Average cloud cover in September - Anatone, WA
  • Average cloud cover in September: 19

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 12).

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Average visibility in September
Anatone, WA

Average visibility in September - Anatone, WA
  • Average visibility in September: 6mi

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

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Anatone, Washington, USA

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