October weather forecastSummit, WA
October
Weather in October
October, like September, is another refreshing autumn month in Summit, Washington, with an average temperature ranging between max 58.3°F (14.6°C) and min 43.2°F (6.2°C).Temperature
The onset of October entails a temperature shift, as the average high-temperature decreases from a pleasant 69.6°F (20.9°C) in September to a mild 58.3°F (14.6°C). Nighttime temperatures in Summit hover around an average low of 43.2°F (6.2°C) in October.Humidity
The average relative humidity in October is 80%.Rainfall
In October, the rain falls for 16.2 days. Throughout October, 3.74" (95mm) of precipitation is accumulated. Throughout the year, there are 183.4 rainfall days, and 32.48" (825mm) of precipitation is accumulated.Snowfall
In Summit, snow does not fall in April through October.Daylight
The average length of the day in October in Summit is 10h and 51min.On the first day of the month, sunrise is at 7:09 am and sunset at 6:48 pm. On the last day of October, sunrise is at 7:52 am and sunset at 5:53 pm PDT.
Sunshine
In Summit, the average sunshine in October is 5.5h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Summit. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 2 in October leads to these guidelines:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Summit, WA
- Average high temperature in October: 58.3°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (42.8°F).
- Average low temperature in October: 43.2°F
The month with the highest average low temperature is August (51.6°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).
Average pressure in October
Summit, 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
Summit, WA
- Average wind speed in October: 4.2mph
The windiest month (with the highest average wind speed) is March (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in October
Summit, WA
- Average humidity in October: 80%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is July (69%).
Average rainfall in October
Summit, WA
- Average rainfall in October: 3.74"
The wettest month (with the highest rainfall) is December (4.92").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in October
Summit, WA
- Average rainfall days in October: 16.2 days
The month with the highest number of rainy days is March (21 days).
The month with the least rainy days is August (6.2 days).
Average snowfall in October
Summit, WA
- Average snowfall in October: 0"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in October
Summit, WA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (2.7 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
Summit, WA
- Average daylight in October: 10h and 54min
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 36min).
- Average sunshine in October: 5h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in October
Summit, WA
- Average sunshine days in October: 13.4 days
The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in October
Summit, 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, October, November and December (UV index 2).
Average cloud cover in October
Summit, WA
- Average cloud cover in October: 44
The months with the most cloud cover are January and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in October
Summit, WA
- Average visibility in October: 5mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (5mi).
