October weather forecast
Startup, WA

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Weather in October

October, the same as September, is a cool autumn month in Startup, Washington, with an average temperature varying between 54.5°F (12.5°C) and 40.1°F (4.5°C).

Temperature

With October's onset, the weather shows a temperature decrease, transitioning from a comfortable 66.4°F (19.1°C) in September to a fresh 54.5°F (12.5°C). An average low-temperature of 40.1°F (4.5°C) is expected in Startup during October.

Humidity

In Startup, Washington, the average relative humidity in October is 81%.

Rainfall

In Startup, Washington, in October, during 17.3 rainfall days, 5.35" (136mm) of precipitation is typically accumulated. Throughout the year, there are 200.6 rainfall days, and 51.65" (1312mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in October is 10h and 49min.
On the first day of October, sunrise is at 7:07 am and sunset at 6:45 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 5:49 pm PDT.

Sunshine

In October, the average sunshine is 5.1h.

UV index

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Startup. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 2 in October translates into this advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are October temperatures in Startup?

The high-temperature, in October, in Startup, records 54.5°F (12.5°C), while the low-temperature is 40.1°F (4.5°C).

What is the average humidity in October in Startup?

In Startup, Washington, the average relative humidity in October is 81%.

How many days does it rain in October in Startup?

In Startup, in October, it is raining for 17.3 days, with typically 5.35" (136mm) of accumulated precipitation.

When it does not snow in Startup?

In Startup, snow does not fall in May through October.

Does it snow in Startup in October?

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

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

In Startup, the average day length in October is 10h and 49min.

What time are sunrise and sunset in October in Startup?

On the first day of October in Startup, sunrise is at 7:07 am and sunset at 6:45 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 5:49 pm PDT.

How many hours of sunshine does Startup have in October?

In Startup, Washington, the average sunshine duration in October is 5.1h.

What is the month with the lowest UV index in Startup?

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in October in Startup?

In Startup, Washington, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low 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
Startup, WA

Average temperature in October - Startup, WA
  • Average high temperature in October: 54.5°F

The warmest month (with the highest average high temperature) is August (73.4°F).
The month with the lowest average high temperature is December (38.3°F).

  • Average low temperature in October: 40.1°F

The month with the highest average low temperature is August (48°F).
The coldest month (with the lowest average low temperature) is December (28.6°F).

Average pressure in October
Startup, WA

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).

Average wind speed in October
Startup, WA

Average wind speed in October - Startup, WA
  • Average wind speed in October: 3.7mph

The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.2mph).

Average humidity in October
Startup, WA

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

The months with the highest relative humidity are January, February and March (88%).
The month with the lowest relative humidity is July (72%).

Average rainfall in October
Startup, WA

Average rainfall in October - Startup, WA
  • Average rainfall in October: 5.35"

The wettest month (with the highest rainfall) is January (7.8").
The driest month (with the least rainfall) is August (0.79").

Average rainfall days in October
Startup, WA

Average rainfall days in October - Startup, WA
  • Average rainfall days in October: 17.3 days

The month with the highest number of rainy days is March (22.3 days).
The month with the least rainy days is August (7.9 days).

Average snowfall in October
Startup, WA

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

The month with the highest snowfall is February (5.43").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in October
Startup, WA

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

The month with the highest number of snowfall days is February (5.2 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
Startup, WA

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

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in October: 5h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 42min).

Average sunshine days in October
Startup, WA

Average sunshine days in October - Startup, WA
  • Average sunshine days in October: 12.4 days

The month with the most sunshine days is August (19.9 days).
The month with the least sunshine days is March (7 days).

Average UV index in October
Startup, WA

Average UV index in October - Startup, WA
  • Average UV index in October: 2

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

Average cloud cover in October
Startup, WA

Average cloud cover in October - Startup, WA
  • Average cloud cover in October: 49

The months with the most cloud cover are March and December (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in October
Startup, WA

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

The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).

Startup, Washington, USA

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