September weather forecast
Myrtle Creek, OR

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Myrtle Creek, Oregon, with an average temperature fluctuating between 44.8°F (7.1°C) and 74.5°F (23.6°C).

Temperature

September's onset brings a negligible change in high-temperatures, falling from a warm 81.1°F (27.3°C) in August to a still moderately hot 74.5°F (23.6°C). Myrtle Creek documents a striking divergence from daytime highs, with an average nighttime temperature of 44.8°F (7.1°C) in September.

Humidity

The average relative humidity in September in Myrtle Creek is 72%.

Rainfall

In September, the rain falls for 3.6 days. Throughout September, 0.31" (8mm) of precipitation is accumulated. Throughout the year, there are 93.9 rainfall days, and 7.64" (194mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 6:38 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:10 am and sunset at 6:55 pm PDT.

Sunshine

In Myrtle Creek, the average sunshine in September is 9.7h.

UV index

In Myrtle Creek, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: The UV index of 3 during September leads to these advisories:
Take precautions - Protection against sun damage is advised. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

In September, in Myrtle Creek, the average high-temperature is 74.5°F (23.6°C), and the average low-temperature is 44.8°F (7.1°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in August is appraised at 84.2°F (29°C).

What is the average humidity in September?

The average relative humidity in September is 72%.

How many days does it rain in September?

In Myrtle Creek, during September, the rain falls for 3.6 days and regularly aggregates up to 0.31" (8mm) of precipitation.

When it does not snow?

April through October are months without snowfall.

How many hours of daylight does Myrtle Creek have in September?

The average day length in September is 12h and 29min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:38 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:55 pm PDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.7h.

What is the UV index intensity in September?

In Myrtle Creek, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average wind speed gusts
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
Myrtle Creek, OR

Average temperature in September - Myrtle Creek, OR
  • Average high temperature in September: 74.5°F

The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (45.7°F).

  • Average low temperature in September: 44.8°F

The month with the highest average low temperature is August (47.7°F).
The coldest month (with the lowest average low temperature) is December (32.2°F).

Average pressure in September
Myrtle Creek, OR

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

Average wind speed in September
Myrtle Creek, OR

Average wind speed in September - Myrtle Creek, OR
  • Average wind speed in September: 3.2mph

The windiest month (with the highest average wind speed) is January (4.1mph).
The calmest month (with the lowest average wind speed) is September (3.2mph).

Average humidity in September
Myrtle Creek, OR

Average humidity in September - Myrtle Creek, OR
  • Average humidity in September: 72%

The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is August (69%).

Average rainfall in September
Myrtle Creek, OR

Average rainfall in September - Myrtle Creek, OR
  • Average rainfall in September: 0.31"

The wettest months (with the highest rainfall) are January, February and December (1.1").
The driest months (with the least rainfall) are July and August (0.16").

Average rainfall days in September
Myrtle Creek, OR

Average rainfall days in September - Myrtle Creek, OR
  • Average rainfall days in September: 3.6 days

The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is August (2.4 days).

Average snowfall in September
Myrtle Creek, OR

Average snowfall in September - Myrtle Creek, OR
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Myrtle Creek, OR

Average snowfall days in September - Myrtle Creek, OR
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Myrtle Creek, OR

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).

Average sunshine days in September
Myrtle Creek, OR

Average sunshine days in September - Myrtle Creek, OR
  • Average sunshine days in September: 25.9 days

The month with the most sunshine days is August (26.5 days).
The month with the least sunshine days is March (16.1 days).

Average UV index in September
Myrtle Creek, OR

Average UV index in September - Myrtle Creek, OR
  • Average UV index in September: 3

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).

Average cloud cover in September
Myrtle Creek, OR

Average cloud cover in September - Myrtle Creek, OR
  • Average cloud cover in September: 31

The month with the most cloud cover is March (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in September
Myrtle Creek, OR

Average visibility in September - Myrtle Creek, OR
  • Average visibility in September: 5mi

The months with the highest visibility are July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (4mi).

Myrtle Creek, Oregon, USA

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