October weather forecast and climate
Sun Valley, CA

Weather in October

October, the same as September, is a moderately hot autumn month in Sun Valley, California, with average temperature fluctuating between 77°F (25°C) and 58.1°F (14.5°C).

Temperature

In Sun Valley, the average high-temperature in October slightly decreases, from 83.3°F (28.5°C) in September, to a still moderately hot 77°F (25°C). The average low-temperature, in October, is 58.1°F (14.5°C).

Humidity

In Sun Valley, the average relative humidity in October is 50%.

Rainfall

In October, the rain falls for 2.5 days. Throughout October, 0.16" (4mm) of precipitation is accumulated. Throughout the year, in Sun Valley, California, there are 40.1 rainfall days, and 5.87" (149mm) of precipitation is accumulated.

Daylight

In October, the average length of the day in Sun Valley is 11.3h.

Sunshine

In October, the average sunshine in Sun Valley is 8.5h.

UV index

In October, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in October in Sun Valley?

In Sun Valley, in October, the average high-temperature is 77°F (25°C), and the average low-temperature is 58.1°F (14.5°C).

What is the average humidity in October in Sun Valley?

The average relative humidity in October in Sun Valley, California, is 50%.

How many days does it rain in October in Sun Valley?

In Sun Valley, California, in October, it is raining for 2.5 days, with typically 0.16" (4mm) of accumulated precipitation.

How many hours of daylight does Sun Valley have in October?

In Sun Valley, the average length of the day in October is 11.3h.

How many hours of sunshine does Sun Valley have in October?

In Sun Valley, California, the average sunshine in October is 8.5h.

How high is the UV index in October in Sun Valley?

In Sun Valley, California, the average daily maximum UV index in October is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV rays.

Average temperature in October
Sun Valley, CA

Average temperature in October - Sun Valley, CA
  • Average high temperature in October: 77°F

The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (61.7°F).

  • Average low temperature in October: 58.1°F

The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (46.2°F).

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Average pressure in October
Sun Valley, CA

Average pressure in October - Sun Valley, CA
  • Average pressure in October: 29.95"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.88").

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Average wind speed in October
Sun Valley, CA

Average wind speed in October - Sun Valley, CA
  • Average wind speed in October: 4.8mph

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).

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Average humidity in October
Sun Valley, CA

Average humidity in October - Sun Valley, CA
  • Average humidity in October: 50%

The month with the highest relative humidity is June (59%).
The month with the lowest relative humidity is November (48%).

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Average rainfall in October
Sun Valley, CA

Average rainfall in October - Sun Valley, CA
  • Average rainfall in October: 0.16"

The wettest month (with the highest rainfall) is December (1.18").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in October
Sun Valley, CA

Average rainfall days in October - Sun Valley, CA
  • Average rainfall days in October: 2.5 days

The month with the highest number of rainy days is March (5.2 days).
The month with the least rainy days is June (1 days).

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Average daylight in October /
Average sunshine in October
Sun Valley, CA

Average daylight in October / Average sunshine in October - Sun Valley, CA
  • Average daylight in October: 11.3h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in October: 8.5h

Months with the most sunshine are June, July and August (Average sunshine: 12.1h).
Months with the least sunshine are January, February and December (Average sunshine: 6.9).

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Average sunshine days in October
Sun Valley, CA

Average sunshine days in October - Sun Valley, CA
  • Average sunshine days in October: 27.1 days

The month with the most sunshine days is October (27.1 days).
The month with the least sunshine days is February (22.9 days).

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Average UV index in October
Sun Valley, CA

Average UV index in October - Sun Valley, CA
  • Average UV index in October: 5

Months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in October
Sun Valley, CA

Average cloud cover in October - Sun Valley, CA
  • Average cloud cover in October: 10

Months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).

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Average visibility in October
Sun Valley, CA

Average visibility in October - Sun Valley, CA
  • Average visibility in October: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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