September weather forecast
Aurora, OR

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Weather in September

The first month of the autumn, September, is also an agreeable month in Aurora, Oregon, with an average temperature varying between 50.9°F (10.5°C) and 73.2°F (22.9°C).

Temperature

With the beginning of September, the average high-temperature shows a small decrease, transitioning from a warm 81°F (27.2°C) in August to a pleasant 73.2°F (22.9°C). September nights are characterized by a notable drop from daytime highs, with an average low-temperature of 50.9°F (10.5°C).

Humidity

In September, the average relative humidity is 70%.

Rainfall

In Aurora, in September, it is raining for 9.9 days, with typically 1.54" (39mm) of accumulated precipitation. Throughout the year, there are 173.8 rainfall days, and 29.96" (761mm) of precipitation is accumulated.

Snowfall

In Aurora, snow does not fall in April through October.

Daylight

In Aurora, Oregon, the average length of the day in September is 12h and 31min.
On the first day of the month, sunrise is at 6:33 am and sunset at 7:47 pm. On the last day of September, in Aurora, sunrise is at 7:08 am and sunset at 6:52 pm PDT.

Sunshine

In Aurora, Oregon, the average sunshine in September is 9.4h.

UV index

The average daily maximum UV index in September in Aurora, Oregon, is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 4 in September translates into these instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Frequently asked questions

What is the temperature in September in Aurora?

Aurora in September has an average high-temperature of 73.2°F (22.9°C) and an average low-temperature of 50.9°F (10.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 84.2°F (29°C).

What is the average humidity in September in Aurora?

In September, the average relative humidity in Aurora, Oregon, is 70%.

How much does it rain in Aurora in September?

In Aurora, Oregon, during September, the rain falls for 9.9 days and regularly aggregates up to 1.54" (39mm) of precipitation.

When it does not snow in Aurora?

April through October are months without snowfall in Aurora.

How many hours of daylight does Aurora have in September?

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

When are sunrise and sunset in September in Aurora?

On the first day of September in Aurora, Oregon, sunrise is at 6:33 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:52 pm PDT.

How long on average sun shines in September in Aurora?

In Aurora, the average sunshine duration in September is 9.4h.

What is the UV index reading in September in Aurora?

The average daily maximum UV index in September in Aurora, Oregon, is 4. A UV Index 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
Aurora, OR

Average temperature in September - Aurora, OR
  • Average high temperature in September: 73.2°F

The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (44.2°F).

  • Average low temperature in September: 50.9°F

The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).

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Average pressure in September
Aurora, OR

Average pressure in September - Aurora, OR
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

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Average wind speed in September
Aurora, OR

Average wind speed in September - Aurora, OR
  • Average wind speed in September: 4mph

The windiest months (with the highest average wind speed) are January and February (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

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Average humidity in September
Aurora, OR

Average humidity in September - Aurora, OR
  • Average humidity in September: 70%

The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is August (65%).

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Average rainfall in September
Aurora, OR

Average rainfall in September - Aurora, OR
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is December (4.49").
The driest months (with the least rainfall) are July and August (0.31").

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Average rainfall days in September
Aurora, OR

Average rainfall days in September - Aurora, OR
  • Average rainfall days in September: 9.9 days

The month with the highest number of rainy days is March (20.9 days).
The months with the least rainy days are July and August (4.4 days).

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Average snowfall in September
Aurora, OR

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

The month with the highest snowfall is February (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Aurora, OR

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

The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Aurora, OR
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in September
Aurora, OR

Average sunshine days in September - Aurora, OR
  • Average sunshine days in September: 18.1 days

The month with the most sunshine days is July (25 days).
The month with the least sunshine days is March (8.3 days).

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Average UV index in September
Aurora, OR

Average UV index in September - Aurora, OR
  • 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, November and December (UV index 2).

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Average cloud cover in September
Aurora, OR

Average cloud cover in September - Aurora, OR
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in September
Aurora, OR

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

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

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Aurora, Oregon, USA

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