October weather forecastWilsonville, OR

October
Weather in October
October in Wilsonville, Oregon observes a rapid cooling as temperatures further drop, forecasting the advent of winter. The weather undergoes a change as longer nights and shorter days become more prominent. True to its Autumnal spirit, rainfall in October elevates to 3.15" (80mm), hinting towards the wetter, colder months ahead. Even though it is an overcast month with increasing humidity, October delivers a quintessential fall experience with its cool, crisp air and an atmosphere ready for pumpkin patches and hay rides.Temperature
The decrease of average high-temperatures is mild in October, with a decline from an agreeable 73.2°F (22.9°C) in September to a comfortable 61.3°F (16.3°C). Throughout October, Wilsonville records an average temperature of 45°F (7.2°C) at night.Humidity
The average relative humidity in October in Wilsonville is 76%.Rainfall
In Wilsonville, in October, during 15.8 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In Wilsonville, during the entire year, the rain falls for 173.8 days and collects up to 29.96" (761mm) of precipitation.Snowfall
April through October are months without snowfall in Wilsonville, Oregon.Daylight
In October, the average length of the day is 10h and 56min.On the first day of the month, sunrise is at 7:10 am and sunset at 6:50 pm. On the last day of October, sunrise is at 7:49 am and sunset at 5:59 pm PDT.
Sunshine
In October, the average sunshine is 5.5h.UV index
In Wilsonville, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 3 in October leads to these recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Wilsonville, OR
- Average high temperature in October: 61.3°F
The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (44.2°F).
- Average low temperature in October: 45°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).
Average pressure in October
Wilsonville, OR
- Average pressure in October: 30.05"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in October
Wilsonville, OR
- Average wind speed in October: 4.7mph
The windiest months (with the highest average wind speed) are January and February (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in October
Wilsonville, OR
- Average humidity in October: 76%
The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is August (65%).
Average rainfall in October
Wilsonville, OR
- Average rainfall in October: 3.15"
The wettest month (with the highest rainfall) is December (4.49").
The driest months (with the least rainfall) are July and August (0.31").
Average rainfall days in October
Wilsonville, OR
- Average rainfall days in October: 15.8 days
The month with the highest number of rainy days is March (20.9 days).
The months with the least rainy days are July and August (4.4 days).
Average snowfall in October
Wilsonville, OR
- Average snowfall in October: 0"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in October
Wilsonville, OR
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Wilsonville, OR
- Average daylight in October: 10h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in October: 5h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in October
Wilsonville, OR
- Average sunshine days in October: 13.9 days
The month with the most sunshine days is July (25 days).
The month with the least sunshine days is March (8.3 days).
Average UV index in October
Wilsonville, OR
- 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
Wilsonville, OR
- Average cloud cover in October: 42
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in October
Wilsonville, OR
- Average visibility in October: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).





