September weather forecast
Biggs Junction, OR

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Weather in September

September, the first month of the autumn in Biggs Junction, is also an agreeable month, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 73.2°F (22.9°C).

Temperature

The average high-temperature drops in September, from August's moderately hot 83.3°F (28.5°C) to an agreeable 73.2°F (22.9°C). Biggs Junction experiences an average low-temperature of 52.7°F (11.5°C) in month of September.

Humidity

The average relative humidity in September is 54%.

Rainfall

In Biggs Junction, in September, during 5.8 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. Throughout the year, there are 112.2 rainfall days, and 10.91" (277mm) of precipitation is accumulated.

Snowfall

In Biggs Junction, snow does not fall in April through October.

Daylight

The average length of the day in September is 12h and 31min.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:40 pm. On the last day of September, in Biggs Junction, sunrise is at 7:01 am and sunset at 6:44 pm PDT.

Sunshine

The average sunshine in September is 10.8h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, an average UV index of 4 transforms into the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

In September, the average high-temperature and low-temperature are 73.2°F (22.9°C) and 52.7°F (11.5°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is evaluated at 84.2°F (29°C).

What is the average humidity in September in Biggs Junction?

In September, the average relative humidity is 54%.

How many days does it rain in September?

In Biggs Junction, during September, the rain falls for 5.8 days and regularly aggregates up to 0.35" (9mm) of precipitation.

When it does not snow in Biggs Junction?

April through October are months without snowfall.

How many hours of daylight does Biggs Junction have in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:25 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:44 pm PDT.

How many hours of sunshine does Biggs Junction have in September?

In September, the average sunshine duration is 10.8h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Biggs Junction, OR

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

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (37.4°F).

  • Average low temperature in September: 52.7°F

The month with the highest average low temperature is August (57.9°F).
The coldest month (with the lowest average low temperature) is December (27°F).

Average pressure in September
Biggs Junction, OR

Average pressure in September - Biggs Junction, OR
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.95"Hg).

Average wind speed in September
Biggs Junction, OR

Average wind speed in September - Biggs Junction, OR
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is June (7.9mph).
The calmest months (with the lowest average wind speed) are January and December (5mph).

Average humidity in September
Biggs Junction, OR

Average humidity in September - Biggs Junction, OR
  • Average humidity in September: 54%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (46%).

Average rainfall in September
Biggs Junction, OR

Average rainfall in September - Biggs Junction, OR
  • Average rainfall in September: 0.35"

The wettest month (with the highest rainfall) is January (1.93").
The driest month (with the least rainfall) is July (0.12").

Average rainfall days in September
Biggs Junction, OR

Average rainfall days in September - Biggs Junction, OR
  • Average rainfall days in September: 5.8 days

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is July (2.9 days).

Average snowfall in September
Biggs Junction, OR

Average snowfall in September - Biggs Junction, OR
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Biggs Junction, OR

Average snowfall days in September - Biggs Junction, OR
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are February and December (3.9 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
Biggs Junction, OR

Average daylight in September / Average sunshine in September - Biggs Junction, 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: 10h and 5min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in September
Biggs Junction, OR

Average sunshine days in September - Biggs Junction, OR
  • Average sunshine days in September: 22.3 days

The month with the most sunshine days is July (27 days).
The month with the least sunshine days is February (12.3 days).

Average UV index in September
Biggs Junction, OR

Average UV index in September - Biggs Junction, 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).

Average cloud cover in September
Biggs Junction, OR

Average cloud cover in September - Biggs Junction, OR
  • Average cloud cover in September: 17

The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 9).

Average visibility in September
Biggs Junction, OR

Average visibility in September - Biggs Junction, OR
  • 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).

Biggs Junction, Oregon, USA

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