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

A subtle decrease in the average high-temperature marks October, falling from September's warm 74.3°F (23.5°C) to a refreshing 61.5°F (16.4°C). Tualatin experiences a nighttime temperature average of 45.5°F (7.5°C) during October.

Humidity

In October, the average relative humidity is 76%.

Rainfall

In Tualatin, during October, the rain falls for 14.8 days and regularly aggregates up to 3.19" (81mm) of precipitation. 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.

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 7:50 am and sunset at 5:59 pm PDT.

Sunshine

In October, the average sunshine is 5.4h.

UV index

In Tualatin, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: In October, an average UV index of 3 transforms into the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Frequently asked questions

What are the temperatures in October?

The average high-temperature, in October, in Tualatin, is 61.5°F (16.4°C), while the average low-temperature is 45.5°F (7.5°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 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, during October, the rain falls for 14.8 days and regularly aggregates up to 3.19" (81mm) of precipitation.

When it does not snow?

April through October are months without snowfall.

Does it snow in October?

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

How many hours of daylight does Tualatin have in October?

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

When is the sunrise / 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 long on average sun shines in October?

In Tualatin, Oregon, the average sunshine duration in October is 5.4h.

What is the UV index reading in October?

The average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
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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