October weather forecast
Tualatin, OR

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Weather in October

In Tualatin, October unveils the signals of the fast-approaching winter months. With the dropping temperature and prolonged rainfall, the shift towards cooler weather is apparent. The daylight hours rapidly shrink, and the higher levels of relative humidity foster the return of cloud-filled skies. October records a significant increase in rainfall, amounting to 3.19" (81mm), marking the doorstep of the wet season. Transitioning into November, expect further drops in temperature and an escalation in precipitation.

Temperature

Tualatin's average high-temperature decreases in October, falling from a moderately hot 74.3°F (23.5°C) in September to a refreshing 61.5°F (16.4°C). An average nighttime temperature of 45.5°F (7.5°C) is recorded during October.

Humidity

In Tualatin, the average relative humidity in October is 76%.

Rainfall

In October, the rain falls for 14.8 days. Throughout October, 3.19" (81mm) of precipitation is accumulated. In Tualatin, during the entire year, the rain falls for 170.9 days and collects up to 30.67" (779mm) of precipitation.

Snowfall

April through October are months without snowfall in Tualatin.

Daylight

The average length of the day in October 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 7:50 am and sunset at 5:59 pm PDT.

Sunshine

The average sunshine in October is 5.4h.

UV index

In October, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: An average UV index of 3 in October transforms into this advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

What is the usual temperature for Tualatin in October?

During October, Tualatin experiences an average high-temperature of 61.5°F (16.4°C) and a low-temperature of 45.5°F (7.5°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 84.2°F (29°C).

What is the average humidity in October?

In Tualatin, the average relative humidity in October is 76%.

How much does it rain in October?

In Tualatin, in October, during 14.8 rainfall days, 3.19" (81mm) of precipitation is typically accumulated.

When it does not snow?

In Tualatin, snow does not fall in April through October.

Does it snow in October?

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

What is the average length of the day in October?

The average day length in October is 10h and 56min.

When are sunrise and sunset in October?

On the first day of October, sunrise is at 7:10 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:59 pm PDT.

How many hours of sunshine does Tualatin have in October?

In October, the average sunshine duration is 5.4h.

What is the UV index intensity in October?

In Tualatin, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Tualatin, OR

Average temperature in October - Tualatin, OR
  • Average high temperature in October: 61.5°F

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (44.1°F).

  • Average low temperature in October: 45.5°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (34.5°F).

Average pressure in October
Tualatin, OR

Average pressure in October - Tualatin, OR
  • Average pressure in October: 30.05"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

Average wind speed in October
Tualatin, OR

Average wind speed in October - Tualatin, OR
  • Average wind speed in October: 4.7mph

The windiest month (with the highest average wind speed) is January (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in October
Tualatin, OR

Average humidity in October - Tualatin, OR
  • Average humidity in October: 76%

The months with the highest relative humidity are January, February and December (84%).
The month with the lowest relative humidity is August (63%).

Average rainfall in October
Tualatin, OR

Average rainfall in October - Tualatin, OR
  • Average rainfall in October: 3.19"

The wettest month (with the highest rainfall) is December (4.57").
The driest month (with the least rainfall) is July (0.31").

Average rainfall days in October
Tualatin, OR

Average rainfall days in October - Tualatin, OR
  • Average rainfall days in October: 14.8 days

The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (4.8 days).

Average snowfall in October
Tualatin, OR

Average snowfall in October - Tualatin, OR
  • Average snowfall in October: 0"

The month with the highest snowfall is February (1.57").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in October
Tualatin, OR

Average snowfall days in October - Tualatin, OR
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (2.3 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
Tualatin, OR

Average daylight in October / Average sunshine in October - Tualatin, OR
  • Average daylight in October: 10h and 5min

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 2min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).

Average sunshine days in October
Tualatin, OR

Average sunshine days in October - Tualatin, OR
  • Average sunshine days in October: 15.1 days

The month with the most sunshine days is July (25 days).
The month with the least sunshine days is February (8.6 days).

Average UV index in October
Tualatin, OR

Average UV index in October - Tualatin, 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
Tualatin, OR

Average cloud cover in October - Tualatin, OR
  • Average cloud cover in October: 43

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 22).

Average visibility in October
Tualatin, OR

Average visibility in October - Tualatin, 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).

Tualatin, Oregon, USA

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