October weather forecast
Riverside, OR

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Weather in October

October, like September, is another refreshing autumn month in Riverside, Oregon, with an average temperature ranging between min 39.7°F (4.3°C) and max 56.8°F (13.8°C).

Temperature

October signals a clear decrease in the average high-temperature, dropping from September's pleasant 73°F (22.8°C) to a moderate 56.8°F (13.8°C). Nighttime temperature dips to a mean of 39.7°F (4.3°C) during October.

Humidity

The average relative humidity in October is 55%.

Rainfall

In Riverside, in October, it is raining for 9.5 days, with typically 0.71" (18mm) of accumulated precipitation. In Riverside, during the entire year, the rain falls for 109.9 days and collects up to 11.34" (288mm) of precipitation.

Snowfall

June through October are months without snowfall in Riverside.

Daylight

In October, the average length of the day in Riverside is 11h and 0min.
On the first day of the month, sunrise is at 7:51 am and sunset at 7:32 pm. On the last day of October, sunrise is at 8:27 am and sunset at 6:44 pm MDT.

Sunshine

The average sunshine in October is 8.3h.

UV index

In October, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 3 during October translates into the following guidance:
Prioritize safety - Recommendations to avert sunburn are shared. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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Frequently asked questions

What is the average October temperature in Riverside?

October temperatures in Riverside vary between a high-temperature of 56.8°F (13.8°C) and a low-temperature of 39.7°F (4.3°C).

What is the average humidity in October in Riverside?

In Riverside, Oregon, the average relative humidity in October is 55%.

How much does it rain in Riverside in October?

In Riverside, during October, the rain falls for 9.5 days and regularly aggregates up to 0.71" (18mm) of precipitation.

When it does not snow in Riverside?

June through October are months without snowfall.

Does it snow in Riverside in October?

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

How many hours of daylight does Riverside have in October?

In Riverside, the average day length in October is 11h and 0min.

When are sunrise and sunset in October in Riverside?

In October, on the first day of the month, sunrise is at 7:51 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 8:27 am and sunset at 6:44 pm MDT.

How long on average sun shines in October in Riverside?

In October, the average sunshine duration is 8.3h.

What is the UV index intensity in October in Riverside?

The average daily maximum UV index in October in Riverside, Oregon, is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from 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
Riverside, OR

Average temperature in October - Riverside, OR
  • Average high temperature in October: 56.8°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (31.8°F).

  • Average low temperature in October: 39.7°F

The month with the highest average low temperature is August (59°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).

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Average pressure in October
Riverside, OR

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

The month with the highest atmospheric pressure is January (30.23"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).

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Average wind speed in October
Riverside, OR

Average wind speed in October - Riverside, OR
  • Average wind speed in October: 6.3mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is January (5mph).

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Average humidity in October
Riverside, OR

Average humidity in October - Riverside, OR
  • Average humidity in October: 55%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are July and August (31%).

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Average rainfall in October
Riverside, OR

Average rainfall in October - Riverside, OR
  • Average rainfall in October: 0.71"

The wettest month (with the highest rainfall) is December (1.77").
The driest month (with the least rainfall) is July (0.12").

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Average rainfall days in October
Riverside, OR

Average rainfall days in October - Riverside, OR
  • Average rainfall days in October: 9.5 days

The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is July (3.4 days).

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Average snowfall in October
Riverside, OR

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

The month with the highest snowfall is December (9.13").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in October
Riverside, OR

Average snowfall days in October - Riverside, OR
  • Average snowfall days in October: 0.4 days

The month with the highest number of snowfall days is December (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Riverside, OR

Average daylight in October / Average sunshine in October - Riverside, OR
  • Average daylight in October: 11h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in October: 8h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in October
Riverside, OR

Average sunshine days in October - Riverside, OR
  • Average sunshine days in October: 19.8 days

The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (11.5 days).

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Average UV index in October
Riverside, OR

Average UV index in October - Riverside, OR
  • Average UV index in October: 3

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in October
Riverside, OR

Average cloud cover in October - Riverside, OR
  • Average cloud cover in October: 23

The months with the most cloud cover are January and December (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 8).

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Average visibility in October
Riverside, OR

Average visibility in October - Riverside, OR
  • Average visibility in October: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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Riverside, Oregon, USA

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