October weather forecast
Mattawa, WA

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Weather in October

October, the same as September, in Mattawa, Washington, is another mild autumn month, with temperature in the range of an average high of 60.1°F (15.6°C) and an average low of 43.7°F (6.5°C).

Temperature

As Mattawa steps into October, the average high-temperature decreases significantly from the a warm 76.1°F (24.5°C) of September to a mild 60.1°F (15.6°C). In Mattawa, the nighttime temperature averages to a frosty 43.7°F (6.5°C) during October.

Humidity

In Mattawa, the average relative humidity in October is 58%.

Rainfall

In Mattawa, in October, during 8.6 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. In Mattawa, during the entire year, the rain falls for 86.4 days and collects up to 6.38" (162mm) of precipitation.

Snowfall

May through August and October are months without snowfall in Mattawa.

Daylight

In Mattawa, Washington, the average length of the day in October is 10h and 52min.
On the first day of October in Mattawa, sunrise is at 6:59 am and sunset at 6:38 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:44 pm PDT.

Sunshine

In October, the average sunshine is 6.8h.

UV index

The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 3 during October leads to these instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

What is the temperature in October in Mattawa?

October temperatures in Mattawa, Washington, vary between a high-temperature of 60.1°F (15.6°C) and a low-temperature of 43.7°F (6.5°C).

What is the average humidity in October in Mattawa?

In Mattawa, the average relative humidity in October is 58%.

How many days does it rain in October in Mattawa?

In October, in Mattawa, the rain falls for 8.6 days. Throughout October, 0.59" (15mm) of precipitation is accumulated.

When it does not snow in Mattawa?

In Mattawa, snow does not fall in May through August and October.

Does it snow in Mattawa in October?

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

How many hours of daylight does Mattawa have in October?

The average day length in October in Mattawa is 10h and 52min.

What time are sunrise and sunset in October in Mattawa?

In October, on the first day of the month, sunrise is at 6:59 am and sunset at 6:38 pm. On the last day of the month, in Mattawa, Washington, sunrise is at 7:41 am and sunset at 5:44 pm PDT.

How long on average sun shines in October in Mattawa?

In October, the average sunshine duration is 6.8h.

What is the UV index reading in October in Mattawa?

In October, the average daily maximum UV index in Mattawa, Washington, is 3. A UV Index value of 3 to 5 symbolizes a medium 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
Mattawa, WA

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

The warmest months (with the highest average high temperature) are July and August (88.3°F).
The month with the lowest average high temperature is December (34.5°F).

  • Average low temperature in October: 43.7°F

The month with the highest average low temperature is August (61.5°F).
The coldest month (with the lowest average low temperature) is December (24.3°F).

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Average pressure in October
Mattawa, WA

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in October
Mattawa, WA

Average wind speed in October - Mattawa, WA
  • Average wind speed in October: 5.8mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).

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Average humidity in October
Mattawa, WA

Average humidity in October - Mattawa, WA
  • Average humidity in October: 58%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (37%).

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Average rainfall in October
Mattawa, WA

Average rainfall in October - Mattawa, WA
  • Average rainfall in October: 0.59"

The wettest months (with the highest rainfall) are January and December (0.87").
The driest month (with the least rainfall) is August (0.2").

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Average rainfall days in October
Mattawa, WA

Average rainfall days in October - Mattawa, WA
  • Average rainfall days in October: 8.6 days

The month with the highest number of rainy days is March (10.6 days).
The month with the least rainy days is August (3.5 days).

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Average snowfall in October
Mattawa, WA

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

The month with the highest snowfall is December (3.43").
The months with the least snowfall are May, June, July, August and October (0").

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Average snowfall days in October
Mattawa, WA

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

The month with the highest number of snowfall days is December (6.5 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
Mattawa, WA

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

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in October: 6h 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: 4h and 54min).

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Average sunshine days in October
Mattawa, WA

Average sunshine days in October - Mattawa, WA
  • Average sunshine days in October: 20.9 days

The months with the most sunshine days are July and August (25.8 days).
The month with the least sunshine days is February (16 days).

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Average UV index in October
Mattawa, WA

Average UV index in October - Mattawa, 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
Mattawa, WA

Average cloud cover in October - Mattawa, WA
  • Average cloud cover in October: 27

The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 10).

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Average visibility in October
Mattawa, WA

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

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

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Mattawa, Washington, USA

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