September weather forecast
Metolius, OR

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Weather in September

The first month of the autumn, September, is still a pleasant month in Metolius, Oregon, with an average temperature varying between 48.6°F (9.2°C) and 72.5°F (22.5°C).

Temperature

September indicates a shift in the average high-temperature, from August's moderately hot 81.7°F (27.6°C) to a pleasant 72.5°F (22.5°C). A sharp contrast between day and night is prevalent in September with an average nighttime temperature of 48.6°F (9.2°C) in Metolius, Oregon.

Humidity

In September, the average relative humidity in Metolius is 55%.

Rainfall

In September, in Metolius, the rain falls for 6.3 days. Throughout September, 0.51" (13mm) of precipitation is accumulated. Throughout the year, there are 121.1 rainfall days, and 11.38" (289mm) of precipitation is accumulated.

Snowfall

January through May, September, November and December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, in Metolius, Oregon, there are 35.3 snowfall days, and 17.6" (447mm) of snow is accumulated.

Daylight

In Metolius, the average length of the day in September is 12h and 30min.
On the first day of September, sunrise is at 6:28 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:46 pm PDT.

Sunshine

The average sunshine in September is 10.9h.

UV index

In Metolius, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: A daily maximum UV index of 4 in September translates into the following instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

What is the average September temperature in Metolius?

The high-temperature in Metolius, Oregon, during September is 72.5°F (22.5°C) and the low-temperature is 48.6°F (9.2°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 82.4°F (28°C).

What is the average humidity in September in Metolius?

In Metolius, the average relative humidity in September is 55%.

How many days does it rain in September in Metolius?

In Metolius, in September, it is raining for 6.3 days, with typically 0.51" (13mm) of accumulated precipitation.

When does it start to snow in Metolius?

September is the first month it typically snows in Metolius, Oregon. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow.

How many hours of daylight does Metolius have in September?

The average day length in September in Metolius is 12h and 30min.

When is the sunrise / sunset in September in Metolius?

In September, on the first day of the month, sunrise is at 6:28 am and sunset at 7:40 pm. On the last day of the month, in Metolius, Oregon, sunrise is at 7:02 am and sunset at 6:46 pm PDT.

How long on average sun shines in September in Metolius?

The average sunshine duration in September is 10.9h.

What is the UV index intensity in September in Metolius?

The average daily maximum UV index in September in Metolius is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe 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
Metolius, OR

Average temperature in September - Metolius, OR
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is December (37.9°F).

  • Average low temperature in September: 48.6°F

The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (26.2°F).

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Average pressure in September
Metolius, OR

Average pressure in September - Metolius, OR
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).

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Average wind speed in September
Metolius, OR

Average wind speed in September - Metolius, OR
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in September
Metolius, OR

Average humidity in September - Metolius, OR
  • Average humidity in September: 55%

The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are July and August (48%).

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Average rainfall in September
Metolius, OR

Average rainfall in September - Metolius, OR
  • Average rainfall in September: 0.51"

The wettest month (with the highest rainfall) is December (1.69").
The driest month (with the least rainfall) is July (0.2").

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Average rainfall days in September
Metolius, OR

Average rainfall days in September - Metolius, OR
  • Average rainfall days in September: 6.3 days

The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is July (3 days).

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Average snowfall in September
Metolius, OR

Average snowfall in September - Metolius, OR
  • Average snowfall in September: 0.08"

The month with the highest snowfall is February (5.55").
The months with the least snowfall are June, July, August and October (0").

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Average snowfall days in September
Metolius, OR

Average snowfall days in September - Metolius, OR
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is December (9.1 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
Metolius, OR

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

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

  • Average sunshine in September: 10h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in September
Metolius, OR

Average sunshine days in September - Metolius, OR
  • Average sunshine days in September: 21.5 days

The month with the most sunshine days is July (26 days).
The month with the least sunshine days is February (10.9 days).

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Average UV index in September
Metolius, OR

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in September
Metolius, OR

Average cloud cover in September - Metolius, OR
  • Average cloud cover in September: 18

The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 9).

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Average visibility in September
Metolius, OR

Average visibility in September - Metolius, OR
  • 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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Metolius, Oregon, USA

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