October weather forecast
Bellevue, WA

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The scenic lakeside city of Bellevue, Washington
The scenic lakeside city of Bellevue, Washington

Weather in October

October introduces the crisp air of Fall in Bellevue, Washington, with a significant drop in temperatures from September. As autumn sweeps across the town, the changing foliage offers mesmerizing views of reds, oranges, yellows, and browns. Despite the cooler weather setting in, October witnesses parks, and streets bustling with autumn festivities. The rainfall index peppers up a notch, 1.1" (28mm), ensuring that the city retains its lush greenery as it shifts into the winter gear. The twilight hours are shorter, making way for longer nights and cozy evenings.

Temperature

As October arrives, Bellevue's weather displays a decrease in high-temperatures, transitioning from September's agreeable 70°F (21.1°C) to a refreshing 58.6°F (14.8°C). Bellevue observes an average nighttime low-temperature of 44.2°F (6.8°C) during the month of October.

Humidity

In Bellevue, the average relative humidity in October is 79%.

Rainfall

In Bellevue, in October, during 10.5 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Bellevue, during the entire year, the rain falls for 119.1 days and collects up to 11.97" (304mm) of precipitation.

Snowfall

April through October are months without snowfall in Bellevue.

Daylight

In Bellevue, the average length of the day in October is 10h and 50min.
On the first day of October, sunrise is at 7:09 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 5:52 pm PDT.

Sunshine

The average sunshine in October is 5.5h.

UV index

In Bellevue, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In October, a daily UV index of 3 turns into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are October temperatures in Bellevue?

October temperatures in Bellevue vary between a high-temperature of 58.6°F (14.8°C) and a low-temperature of 44.2°F (6.8°C).

What is the average humidity in October in Bellevue?

The average relative humidity in October is 79%.

How many days does it rain in October in Bellevue?

In October, in Bellevue, the rain falls for 10.5 days. Throughout October, 1.1" (28mm) of precipitation is accumulated.

When it does not snow in Bellevue?

April through October are months without snowfall in Bellevue, Washington.

Does it snow in Bellevue in October?

In Bellevue, in October, it doesn't snow. In November, it regularly snows.

How many hours of daylight does Bellevue have in October?

The average day length in October in Bellevue, Washington, is 10h and 50min.

When are sunrise and sunset in October in Bellevue?

In October, on the first day of the month, sunrise is at 7:09 am and sunset at 6:47 pm. On the last day of the month, in Bellevue, sunrise is at 7:52 am and sunset at 5:52 pm PDT.

How many hours of sunshine does Bellevue have in October?

In Bellevue, Washington, the average sunshine duration in October is 5.5h.

What is the UV index intensity in October in Bellevue?

The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Bellevue, WA

Average temperature in October - Bellevue, WA
  • Average high temperature in October: 58.6°F

The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (42.8°F).

  • Average low temperature in October: 44.2°F

The month with the highest average low temperature is August (53.4°F).
The coldest month (with the lowest average low temperature) is February (34.5°F).

Average pressure in October
Bellevue, WA

Average pressure in October - Bellevue, WA
  • Average pressure in October: 30.04"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

Average wind speed in October
Bellevue, WA

Average wind speed in October - Bellevue, WA
  • Average wind speed in October: 4.2mph

The windiest month (with the highest average wind speed) is March (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).

Average humidity in October
Bellevue, WA

Average humidity in October - Bellevue, WA
  • Average humidity in October: 79%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (69%).

Average rainfall in October
Bellevue, WA

Average rainfall in October - Bellevue, WA
  • Average rainfall in October: 1.1"

The wettest month (with the highest rainfall) is December (2.01").
The driest month (with the least rainfall) is July (0.24").

Average rainfall days in October
Bellevue, WA

Average rainfall days in October - Bellevue, WA
  • Average rainfall days in October: 10.5 days

The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is August (4.1 days).

Average snowfall in October
Bellevue, WA

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

The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in October
Bellevue, WA

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

The month with the highest number of snowfall days is February (3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in October / Average sunshine in October - Bellevue, 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: 5h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

Average sunshine days in October
Bellevue, WA

Average sunshine days in October - Bellevue, WA
  • Average sunshine days in October: 18.6 days

The month with the most sunshine days is August (24.9 days).
The month with the least sunshine days is February (13.8 days).

Average UV index in October
Bellevue, WA

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

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 October
Bellevue, WA

Average cloud cover in October - Bellevue, WA
  • Average cloud cover in October: 42

The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in October
Bellevue, WA

Average visibility in October - Bellevue, WA
  • Average visibility in October: 5mi

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

Bellevue, Washington, USA

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