October weather forecast
Placentia, CA

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Weather in October

October, like September, in Placentia, California, is another warm autumn month, with an average temperature ranging between min 61°F (16.1°C) and max 77.9°F (25.5°C).

Temperature

As September shifts into October, a minor alteration in temperatures is observed, with average highs reducing from 84°F (28.9°C) to a still moderately hot 77.9°F (25.5°C). In October, Placentia experiences an average nighttime temperature of 61°F (16.1°C).

Humidity

The average relative humidity in October is 54%.

Rainfall

In Placentia, in October, it is raining for 3.6 days, with typically 0.28" (7mm) of accumulated precipitation. In Placentia, during the entire year, the rain falls for 53.2 days and collects up to 7.72" (196mm) of precipitation.

Daylight

In October, the average length of the day in Placentia is 11h and 19min.
On the first day of October, sunrise is at 6:46 am and sunset at 6:35 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:59 pm PDT.

Sunshine

In October, the average sunshine is 8.6h.

UV index

In October, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: In October, the average maximum UV index of 5 translates into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in October?

The high-temperature, in October, in Placentia, is 77.9°F (25.5°C), while the low-temperature averages to 61°F (16.1°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 86°F (30°C).

What is the average humidity in October?

The average relative humidity in October is 54%.

How many days does it rain in October?

In October, the rain falls for 3.6 days. Throughout October, 0.28" (7mm) of precipitation is accumulated.

How many hours of daylight does Placentia have in October?

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

When are sunrise and sunset in October?

On the first day of October, sunrise is at 6:46 am and sunset at 6:35 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:59 pm PDT.

How many hours of sunshine does Placentia have in October?

The average sunshine duration in October is 8.6h.

What is the UV index reading in October?

In Placentia, the average daily maximum UV index in October is 5. A UV Index of 3 to 5 symbolizes 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
Placentia, CA

Average temperature in October - Placentia, CA
  • Average high temperature in October: 77.9°F

The warmest month (with the highest average high temperature) is August (85.3°F).
The month with the lowest average high temperature is December (64.2°F).

  • Average low temperature in October: 61°F

The month with the highest average low temperature is August (65.7°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).

Average pressure in October
Placentia, CA

Average pressure in October - Placentia, CA
  • Average pressure in October: 29.95"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in October
Placentia, CA

Average wind speed in October - Placentia, CA
  • Average wind speed in October: 4.7mph

The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

Average humidity in October
Placentia, CA

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

The month with the highest relative humidity is June (63%).
The month with the lowest relative humidity is November (50%).

Average rainfall in October
Placentia, CA

Average rainfall in October - Placentia, CA
  • Average rainfall in October: 0.28"

The wettest month (with the highest rainfall) is December (1.65").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in October
Placentia, CA

Average rainfall days in October - Placentia, CA
  • Average rainfall days in October: 3.6 days

The month with the highest number of rainy days is March (7.4 days).
The month with the least rainy days is June (1.4 days).

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

Average daylight in October / Average sunshine in October - Placentia, 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 4min

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

Average sunshine days in October
Placentia, CA

Average sunshine days in October - Placentia, CA
  • Average sunshine days in October: 24.5 days

The month with the most sunshine days is August (26.7 days).
The month with the least sunshine days is February (20.7 days).

Average UV index in October
Placentia, CA

Average UV index in October - Placentia, CA
  • Average UV index in October: 5

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).

Average cloud cover in October
Placentia, CA

Average cloud cover in October - Placentia, CA
  • Average cloud cover in October: 11

The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in October
Placentia, CA

Average visibility in October - Placentia, 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).

Placentia, California, USA

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