October weather forecast
Clarkston, WA

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Weather in October

October, the same as September, in Clarkston, Washington, is another refreshing autumn month, with temperature in the range of an average low of 42.4°F (5.8°C) and an average high of 60.1°F (15.6°C).

Temperature

October signals a significant shift in the average high-temperature, falling from September's warm 75.4°F (24.1°C) to a mild 60.1°F (15.6°C). During October, Clarkston observes a consistent average nighttime temperature of 42.4°F (5.8°C).

Humidity

In October, the average relative humidity in Clarkston is 60%.

Rainfall

In Clarkston, in October, it is raining for 8.8 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, in Clarkston, Washington, there are 116.2 rainfall days, and 8.23" (209mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, October through December. October is the first month it typically snows in Clarkston. Throughout October, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Clarkston, during the entire year, snow falls for 14.8 days and aggregates up to 4.29" (109mm) of snow.

Daylight

In Clarkston, the average length of the day in October is 10h and 53min.
On the first day of October in Clarkston, sunrise is at 6:47 am and sunset at 6:27 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:34 pm PDT.

Sunshine

The average sunshine in October is 7.3h.

UV index

In October, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In October, a daily maximum UV index of 3 leads to the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

What are October temperatures in Clarkston?

The high-temperature, in October, in Clarkston, is 60.1°F (15.6°C), while the low-temperature averages to 42.4°F (5.8°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 84.2°F (29°C).

What is the average humidity in October in Clarkston?

The average relative humidity in October is 60%.

How many days does it rain in October in Clarkston?

In Clarkston, during October, the rain falls for 8.8 days and regularly aggregates up to 0.63" (16mm) of precipitation.

When does it start snowing in Clarkston?

October is the first month it typically snows in Clarkston. Throughout October, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in October in Clarkston?

In October, the average day length in Clarkston is 10h and 53min.

When is the sunrise / sunset in October in Clarkston?

In October, on the first day of the month, sunrise is at 6:47 am and sunset at 6:27 pm. On the last day of the month, in Clarkston, Washington, sunrise is at 7:29 am and sunset at 5:34 pm PDT.

How many hours of sunshine does Clarkston have in October?

The average sunshine duration in October in Clarkston is 7.3h.

What is the UV index reading in October in Clarkston?

The average daily maximum UV index in October in Clarkston, Washington, is 3. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
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
Clarkston, WA

Average temperature in October - Clarkston, WA
  • Average high temperature in October: 60.1°F

The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is December (36.5°F).

  • Average low temperature in October: 42.4°F

The month with the highest average low temperature is August (59.4°F).
The coldest month (with the lowest average low temperature) is December (24.8°F).

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Average pressure in October
Clarkston, WA

Average pressure in October - Clarkston, WA
  • Average pressure in October: 30.05"Hg

The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in October
Clarkston, WA

Average wind speed in October - Clarkston, WA
  • Average wind speed in October: 5mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

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Average humidity in October
Clarkston, WA

Average humidity in October - Clarkston, WA
  • Average humidity in October: 60%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (38%).

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Average rainfall in October
Clarkston, WA

Average rainfall in October - Clarkston, WA
  • Average rainfall in October: 0.63"

The wettest month (with the highest rainfall) is March (0.98").
The driest month (with the least rainfall) is August (0.24").

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Average rainfall days in October
Clarkston, WA

Average rainfall days in October - Clarkston, WA
  • Average rainfall days in October: 8.8 days

The months with the highest number of rainy days are March and April (13.8 days).
The month with the least rainy days is August (4.5 days).

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Average snowfall in October
Clarkston, WA

Average snowfall in October - Clarkston, WA
  • Average snowfall in October: 0.04"

The month with the highest snowfall is February (1.89").
The months with the least snowfall are April, May, June, July, August and September (0").

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Average snowfall days in October
Clarkston, WA

Average snowfall days in October - Clarkston, WA
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in October / Average sunshine in October - Clarkston, 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: 7h and 2min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

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Average sunshine days in October
Clarkston, WA

Average sunshine days in October - Clarkston, WA
  • Average sunshine days in October: 19.9 days

The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is February (12.8 days).

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Average UV index in October
Clarkston, WA

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in October
Clarkston, WA

Average cloud cover in October - Clarkston, WA
  • Average cloud cover in October: 29

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 12).

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Average visibility in October
Clarkston, WA

Average visibility in October - Clarkston, 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, February and December (5mi).

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Clarkston, Washington, USA

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