September weather forecast
Shaniko, OR

Weather in September

September, the first month of the autumn, in Shaniko, is also an agreeable month, with average temperature ranging between max 72.5°F (22.5°C) and min 48.6°F (9.2°C).

Temperature

In September, the average high-temperature decreases, from a warm 81.7°F (27.6°C) in August, to a pleasant 72.5°F (22.5°C). The average low-temperature, in September, is 48.6°F (9.2°C).

Humidity

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

Rainfall

In Shaniko, it is raining for 6.3 days, with typically 0.51" (13mm) of accumulated precipitation. In Shaniko, during the entire year, the rain falls for 121.1 days and collects up to 11.38" (289mm) of precipitation.

Snowfall

January through May, September, November and December are months with snowfall. September is the first month it typically snows in Shaniko. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. In Shaniko, Oregon, during the entire year, snow falls for 35.3 days, and aggregates up to 17.6" (447mm) of snow.

Daylight

The average length of the day in Shaniko is 12.5h.

Sunshine

In September, the average sunshine in Shaniko is 10.9h.

UV index

In Shaniko, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in September in Shaniko?

The average relative humidity in September in Shaniko, Oregon, is 55%.

How much does it rain in Shaniko in September?

In September, in Shaniko, Oregon, the rain falls for 6.3 days. Throughout September, 0.51" (13mm) of precipitation is accumulated.

When does it start snowing in Shaniko?

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

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

In Shaniko, the average length of the day in September is 12.5h.

How long on average sun shines in September in Shaniko?

In Shaniko, the average sunshine in September is 10.9h.

What is the UV index intensity in September in Shaniko?

The average daily maximum UV index in September in Shaniko is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in September
Shaniko, OR

Average temperature in September - Shaniko, 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
Shaniko, OR

Average pressure in September - Shaniko, OR
  • Average pressure in September: 29.99"

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

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Average wind speed in September
Shaniko, OR

Average wind speed in September - Shaniko, 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
Shaniko, OR

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

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

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Average rainfall in September
Shaniko, OR

Average rainfall in September - Shaniko, 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
Shaniko, OR

Average rainfall days in September - Shaniko, 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
Shaniko, OR

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

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

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Average snowfall days in September
Shaniko, OR

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

The month with the highest number of snowfall days is December (9.1 days).
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
Shaniko, OR

Average daylight in September / Average sunshine in September - Shaniko, OR
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.6h).
The month with the shortest days is December (Average daylight: 8.8h).

  • Average sunshine in September: 10.9h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.3h).

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Average sunshine days in September
Shaniko, OR

Average sunshine days in September - Shaniko, 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
Shaniko, OR

Average UV index in September - Shaniko, 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
Shaniko, OR

Average cloud cover in September - Shaniko, 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
Shaniko, OR

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

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

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