October weather forecast
Brentwood, CA

Scenic and organized home community in Brentwood City, California
Scenic and organized home community in Brentwood City, California

Weather in October

October, the same as September, is another warm autumn month in Brentwood, California, with an average temperature fluctuating between 75.9°F (24.4°C) and 54°F (12.2°C).

Temperature

In October, the average high-temperature drops from a moderately hot 85.3°F (29.6°C) in September to a still warm 75.9°F (24.4°C). The average low-temperature, is 54°F (12.2°C).

Humidity

The average relative humidity in October is 54%.

Rainfall

In Brentwood, in October, it is raining for 3.3 days, with typically 0.51" (13mm) of accumulated precipitation. Throughout the year, in Brentwood, California, there are 62 rainfall days, and 10.16" (258mm) of precipitation is accumulated.

Snowfall

In Brentwood, California, snow does not fall in January through November.

Daylight

In Brentwood, the average length of the day in October is 11h and 12min.
On the first day of October, sunrise is at 7:02 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 6:09 pm PDT.

Sunshine

The average sunshine in October is 7.2h.

UV index

In October, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 4 in October interpret into the following advice:
Take precautions - Protection against sunburn is recommended. 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 average humidity in October in Brentwood?

In October, the average relative humidity is 54%.

How much does it rain in Brentwood in October?

In October, the rain falls for 3.3 days. Throughout October, 0.51" (13mm) of precipitation is accumulated.

When it does not snow in Brentwood?

January through November are months without snowfall in Brentwood, California.

How many hours of daylight does Brentwood have in October?

In October, the average day length is 11h and 12min.

What time are sunrise and sunset in October in Brentwood?

In October, on the first day of the month, sunrise is at 7:02 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 6:09 pm PDT.

How long on average sun shines in October in Brentwood?

The average sunshine duration in October in Brentwood, California, is 7.2h.

How high is the UV index in October in Brentwood?

The average daily maximum UV index in October is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.

Average temperature in October
Brentwood, CA

Average temperature in October - Brentwood, CA
  • Average high temperature in October: 75.9°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in October: 54°F

The month with the highest average low temperature is September (57.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

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Average pressure in October
Brentwood, CA

Average pressure in October - Brentwood, CA
  • Average pressure in October: 29.98"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in October
Brentwood, CA

Average wind speed in October - Brentwood, CA
  • Average wind speed in October: 5.5mph

The windiest month (with the highest average wind speed) is June (7.8mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).

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Average humidity in October
Brentwood, CA

Average humidity in October - Brentwood, CA
  • Average humidity in October: 54%

The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is September (52%).

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Average rainfall in October
Brentwood, CA

Average rainfall in October - Brentwood, CA
  • Average rainfall in October: 0.51"

The wettest month (with the highest rainfall) is February (2.09").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in October
Brentwood, CA

Average rainfall days in October - Brentwood, CA
  • Average rainfall days in October: 3.3 days

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (0.8 days).

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Average snowfall days in October
Brentwood, CA

Average snowfall days in October - Brentwood, CA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in October /
Average sunshine in October
Brentwood, CA

Average daylight in October / Average sunshine in October - Brentwood, CA
  • Average daylight in October: 11h and 12min

The month with the longest days is June (Average daylight: 14h and 45min).
The month with the shortest days is December (Average daylight: 9h and 35min).

  • Average sunshine in October: 7.2h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days in October
Brentwood, CA

Average sunshine days in October - Brentwood, CA
  • Average sunshine days in October: 26.9 days

The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (17.7 days).

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Average UV index in October
Brentwood, CA

Average UV index in October - Brentwood, CA
  • Average UV index in October: 4

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in October
Brentwood, CA

Average cloud cover in October - Brentwood, CA
  • Average cloud cover in October: 15

The months with the most cloud cover are March and December (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).

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Average visibility in October
Brentwood, CA

Average visibility in October - Brentwood, 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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