October weather forecast
Sun Valley, CA

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Weather in October

October, the same as September, is another warm autumn month in Sun Valley, California, with temperature in the range of an average low of 58.1°F (14.5°C) and an average high of 77°F (25°C).

Temperature

A subtle change in temperatures is noted as September gives way to October, with average highs reducing from 83.3°F (28.5°C) to a still warm 77°F (25°C). During October, the nighttime temperature in Sun Valley averages to a mild 58.1°F (14.5°C).

Humidity

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

Rainfall

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

Daylight

In Sun Valley, California, the average length of the day in October is 11h and 19min.
On the first day of the month, sunrise is at 6:48 am and sunset at 6:37 pm. On the last day of October, in Sun Valley, sunrise is at 7:13 am and sunset at 6:01 pm PDT.

Sunshine

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

UV index

In Sun Valley, California, the average daily maximum UV index in October is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 5 in October translates into the following instructions:
Ensure safety - Sun damage prevention is strongly urged. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

What are the temperatures in Sun Valley in October?

October temperatures in Sun Valley, California, vary between a high-temperature of 77°F (25°C) and a low-temperature of 58.1°F (14.5°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in September is evaluated at 84.2°F (29°C).

What is the average humidity in October in Sun Valley?

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

How much does it rain in Sun Valley in October?

In October, in Sun Valley, California, the rain falls for 2.5 days. Throughout October, 0.16" (4mm) of precipitation is accumulated.

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

In October, the average day length in Sun Valley is 11h and 19min.

When is the sunrise / sunset in October in Sun Valley?

In October, on the first day of the month, sunrise is at 6:48 am and sunset at 6:37 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:01 pm PDT.

How long on average sun shines in October in Sun Valley?

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

What is the UV index intensity in October in Sun Valley?

In Sun Valley, California, the average daily maximum UV index in October is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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"Hg

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

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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: 11h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in October: 8h and 3min

The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).

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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

The 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

The 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

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

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Sun Valley, California, USA

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