October weather forecast
Porter Ranch, CA

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Weather in October

October, the same as September, is a moderately hot autumn month in Porter Ranch, California, with temperature in the range of an average high of 76.5°F (24.7°C) and an average low of 58.5°F (14.7°C).

Temperature

The start of October signals a gentle decrease in the average high-temperature, transitioning from a warm 83.1°F (28.4°C) in September to a still moderately hot 76.5°F (24.7°C). Porter Ranch, in October, witnesses an average low-temperature of 58.5°F (14.7°C).

Humidity

In October, the average relative humidity is 48%.

Rainfall

In Porter Ranch, in October, during 2.9 rainfall days, 0.2" (5mm) of precipitation is typically accumulated. In Porter Ranch, during the entire year, the rain falls for 39.8 days and collects up to 7.52" (191mm) of precipitation.

Daylight

In October, the average length of the day is 11h and 19min.
On the first day of October, sunrise is at 6:49 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.

Sunshine

In October, the average sunshine is 8.4h.

UV index

In Porter Ranch, California, the average daily maximum UV index in October is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: In October, a daily maximum UV index of 5 leads to the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

What is the usual temperature for Porter Ranch in October?

In October, the average high-temperature and low-temperature are 76.5°F (24.7°C) and 58.5°F (14.7°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 84.2°F (29°C).

What is the average humidity in October?

The average relative humidity in October is 48%.

How much does it rain in October?

In Porter Ranch, in October, during 2.9 rainfall days, 0.2" (5mm) of precipitation is typically accumulated.

How many hours of daylight does Porter Ranch have in October?

In Porter Ranch, the average day length in October is 11h and 19min.

When is the sunrise / sunset in October?

On the first day of October, sunrise is at 6:49 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 many hours of sunshine does Porter Ranch have in October?

The average sunshine duration in October is 8.4h.

What is the UV index reading in October in Porter Ranch?

In October, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Porter Ranch, CA

Average temperature in October - Porter Ranch, CA
  • Average high temperature in October: 76.5°F

The warmest month (with the highest average high temperature) is August (85.8°F).
The month with the lowest average high temperature is December (61.7°F).

  • Average low temperature in October: 58.5°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is December (46.2°F).

Average pressure in October
Porter Ranch, CA

Average pressure in October - Porter Ranch, 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 (29.89"Hg).

Average wind speed in October
Porter Ranch, CA

Average wind speed in October - Porter Ranch, CA
  • Average wind speed in October: 5.1mph

The windiest months (with the highest average wind speed) are January and December (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

Average humidity in October
Porter Ranch, CA

Average humidity in October - Porter Ranch, CA
  • Average humidity in October: 48%

The month with the highest relative humidity is June (58%).
The month with the lowest relative humidity is November (47%).

Average rainfall in October
Porter Ranch, CA

Average rainfall in October - Porter Ranch, CA
  • Average rainfall in October: 0.2"

The wettest month (with the highest rainfall) is February (1.54").
The driest month (with the least rainfall) is June (0").

Average rainfall days in October
Porter Ranch, CA

Average rainfall days in October - Porter Ranch, CA
  • Average rainfall days in October: 2.9 days

The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.8 days).

Average daylight in October /
Average sunshine in October
Porter Ranch, CA

Average daylight in October / Average sunshine in October - Porter Ranch, 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 2min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).

Average sunshine days in October
Porter Ranch, CA

Average sunshine days in October - Porter Ranch, CA
  • Average sunshine days in October: 27.1 days

The month with the most sunshine days is May (28.8 days).
The month with the least sunshine days is February (22.9 days).

Average UV index in October
Porter Ranch, CA

Average UV index in October - Porter Ranch, 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).

Average cloud cover in October
Porter Ranch, CA

Average cloud cover in October - Porter Ranch, CA
  • Average cloud cover in October: 10

The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 4).

Average visibility in October
Porter Ranch, CA

Average visibility in October - Porter Ranch, 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).

Porter Ranch, California, USA

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