October weather forecastStartup, WA
October
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 10h and 48min
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 6min
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: 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: 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: 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: 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).
