October weather forecast
Chinook, WA

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Weather in October

October, like September, is a moderate autumn month in Chinook, Washington, with an average temperature ranging between max 57.9°F (14.4°C) and min 50.9°F (10.5°C).

Temperature

Chinook records an average high-temperature of a still refreshing 57.9°F (14.4°C) in October, maintaining a close correlation with September's 62.6°F (17°C). Chinook records a slight downturn in temperature to an average of 50.9°F (10.5°C) during October nights.

Humidity

The average relative humidity in October is 81%.

Rainfall

In Chinook, in October, it is raining for 15.3 days, with typically 1.97" (50mm) of accumulated precipitation. In Chinook, during the entire year, the rain falls for 165.1 days and collects up to 19.92" (506mm) of precipitation.

Snowfall

In Chinook, snow does not fall in March through August, October through December.

Daylight

In October, the average length of the day is 10h and 53min.
On the first day of the month, sunrise is at 7:15 am and sunset at 6:54 pm. On the last day of October, sunrise is at 7:56 am and sunset at 6:02 pm PDT.

Sunshine

In October, the average sunshine is 5.2h.

UV index

In October, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In October, the maximum UV index of 3 suggests these recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in October?

The high-temperature, in October, in Chinook, records 57.9°F (14.4°C), while the low-temperature is 50.9°F (10.5°C).

What is the average humidity in October?

In October, the average relative humidity is 81%.

How much does it rain in October?

In October, the rain falls for 15.3 days. Throughout October, 1.97" (50mm) of precipitation is accumulated.

When it does not snow?

In Chinook, snow does not fall in March through August, October through December.

Does it snow in October?

In October, it doesn't snow. September is the latest month when it typically snows.

What is the average length of the day in October?

The average day length in October is 10h and 53min.

When is the sunrise / sunset in October?

In October, on the first day of the month, sunrise is at 7:15 am and sunset at 6:54 pm. On the last day of the month, in Chinook, sunrise is at 7:56 am and sunset at 6:02 pm PDT.

How long on average sun shines in October?

The average sunshine duration in October is 5.2h.

How high is the UV index in October?

In October, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat 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 October
Chinook, WA

Average temperature in October - Chinook, WA
  • Average high temperature in October: 57.9°F

The warmest month (with the highest average high temperature) is August (63.9°F).
The month with the lowest average high temperature is December (46.8°F).

  • Average low temperature in October: 50.9°F

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (41.5°F).

Average pressure in October
Chinook, WA

Average pressure in October - Chinook, WA
  • Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is July (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).

Average wind speed in October
Chinook, WA

Average wind speed in October - Chinook, WA
  • Average wind speed in October: 9.5mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).

Average humidity in October
Chinook, WA

Average humidity in October - Chinook, WA
  • Average humidity in October: 81%

The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is April (80%).

Average rainfall in October
Chinook, WA

Average rainfall in October - Chinook, WA
  • Average rainfall in October: 1.97"

The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is July (0.35").

Average rainfall days in October
Chinook, WA

Average rainfall days in October - Chinook, WA
  • Average rainfall days in October: 15.3 days

The month with the highest number of rainy days is November (18.5 days).
The month with the least rainy days is August (6.7 days).

Average snowfall in October
Chinook, WA

Average snowfall in October - Chinook, WA
  • Average snowfall in October: 0"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are March, April, May, June, July, August, October, November and December (0").

Average snowfall days in October
Chinook, WA

Average snowfall days in October - Chinook, WA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).

Average daylight in October /
Average sunshine in October
Chinook, WA

Average daylight in October / Average sunshine in October - Chinook, WA
  • Average daylight in October: 10h and 5min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in October: 5h and 1min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in October
Chinook, WA

Average sunshine days in October - Chinook, WA
  • Average sunshine days in October: 14 days

The month with the most sunshine days is August (20.3 days).
The month with the least sunshine days is November (8.9 days).

Average UV index in October
Chinook, WA

Average UV index in October - Chinook, WA
  • Average UV index in October: 3

The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are February, November and December (UV index 2).

Average cloud cover in October
Chinook, WA

Average cloud cover in October - Chinook, WA
  • Average cloud cover in October: 43

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 37).

Average visibility in October
Chinook, WA

Average visibility in October - Chinook, WA
  • Average visibility in October: 6mi

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

Chinook, Washington, USA

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