October weather forecast
Coulee City, WA

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Weather in October

October, like September, is a moderate autumn month in Coulee City, Washington, with temperature in the range of an average low of 41.4°F (5.2°C) and an average high of 56.3°F (13.5°C).

Temperature

As Coulee City steps into October, a marked temperature drop is observed, with the average high-temperature reducing from September's pleasant 72.7°F (22.6°C) to a moderate 56.3°F (13.5°C). Throughout the month of October, Coulee City sees a steady low-temperature average of 41.4°F (5.2°C).

Humidity

In October, the average relative humidity is 63%.

Rainfall

In Coulee City, in October, during 10.3 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. In Coulee City, during the entire year, the rain falls for 102.1 days and collects up to 9.65" (245mm) of precipitation.

Snowfall

Months with snowfall are January through April, September through December. In Coulee City, in October, snow falls for 0.2 days, with typically accumulated 0.04" (1mm) of snow. In Coulee City, Washington, during the entire year, snow falls for 33.4 days and aggregates up to 14.65" (372mm) of snow.

Daylight

In October, the average length of the day is 10h and 50min.
On the first day of the month, sunrise is at 6:57 am and sunset at 6:35 pm. On the last day of October, in Coulee City, Washington, sunrise is at 7:40 am and sunset at 5:40 pm PDT.

Sunshine

In October, the average sunshine is 6.7h.

UV index

In October, the average daily maximum UV index in Coulee City is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 2 during October translates into these guidelines:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

What are October temperatures in Coulee City?

In October, the average high-temperature and low-temperature are 56.3°F (13.5°C) and 41.4°F (5.2°C) respectively.

What is the average humidity in October in Coulee City?

The average relative humidity in October in Coulee City is 63%.

How many days does it rain in October in Coulee City?

In Coulee City, Washington, in October, it is raining for 10.3 days, with typically 0.87" (22mm) of accumulated precipitation.

How many days does it snow in October in Coulee City?

In Coulee City, Washington, during October, snow falls for 0.2 days and regularly aggregates up to 0.04" (1mm) of snow.

What is the average length of the day in October in Coulee City?

In Coulee City, Washington, the average day length in October is 10h and 50min.

When is the sunrise / sunset in October in Coulee City?

On the first day of October, sunrise is at 6:57 am and sunset at 6:35 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:40 pm PDT.

How many hours of sunshine does Coulee City have in October?

In October, the average sunshine duration in Coulee City, Washington, is 6.7h.

What is the UV index intensity in October in Coulee City?

In October, the average daily maximum UV index in Coulee City is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Coulee City, WA

Average temperature in October - Coulee City, WA
  • Average high temperature in October: 56.3°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (31.6°F).

  • Average low temperature in October: 41.4°F

The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).

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Average pressure in October
Coulee City, WA

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

The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in October
Coulee City, WA

Average wind speed in October - Coulee City, WA
  • Average wind speed in October: 5.9mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).

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Average humidity in October
Coulee City, WA

Average humidity in October - Coulee City, WA
  • Average humidity in October: 63%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (36%).

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Average rainfall in October
Coulee City, WA

Average rainfall in October - Coulee City, WA
  • Average rainfall in October: 0.87"

The wettest months (with the highest rainfall) are May and December (1.18").
The driest months (with the least rainfall) are July and August (0.2").

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Average rainfall days in October
Coulee City, WA

Average rainfall days in October - Coulee City, WA
  • Average rainfall days in October: 10.3 days

The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (3.2 days).

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Average snowfall in October
Coulee City, WA

Average snowfall in October - Coulee City, WA
  • Average snowfall in October: 0.04"

The month with the highest snowfall is January (4.41").
The months with the least snowfall are May, June, July and August (0").

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Average snowfall days in October
Coulee City, WA

Average snowfall days in October - Coulee City, WA
  • Average snowfall days in October: 0.2 days

The month with the highest number of snowfall days is December (10.5 days).
The months with the least snowfall days are May, June, July and August (0 days).

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Average daylight in October /
Average sunshine in October
Coulee City, WA

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

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

  • Average sunshine in October: 6h and 4min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in October
Coulee City, WA

Average sunshine days in October - Coulee City, WA
  • Average sunshine days in October: 19.2 days

The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is March (14.7 days).

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Average UV index in October
Coulee City, WA

Average UV index in October - Coulee City, WA
  • Average UV index in October: 2

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 1).

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Average cloud cover in October
Coulee City, WA

Average cloud cover in October - Coulee City, WA
  • Average cloud cover in October: 31

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and August (Cloud cover 12).

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Average visibility in October
Coulee City, WA

Average visibility in October - Coulee City, WA
  • Average visibility in October: 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 and December (4mi).

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Coulee City, Washington, USA

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