October weather forecast
O'Brien, CA

Weather in October

October, the same as September, in O'Brien, California, is another pleasant autumn month, with an average temperature varying between 46.8°F (8.2°C) and 71.4°F (21.9°C).

Temperature

In O'Brien, California, the average high-temperature in October decreases from a warm 84°F (28.9°C) in September to a pleasant 71.4°F (21.9°C). The average low-temperature, in O'Brien, California, is 46.8°F (8.2°C).

Humidity

The average relative humidity in October in O'Brien is 50%.

Rainfall

In O'Brien, in October, it is raining for 5.3 days, with typically 1.3" (33mm) of accumulated precipitation. In O'Brien, during the entire year, the rain falls for 102.3 days and collects up to 24.21" (615mm) of precipitation.

Snowfall

April through October are months without snowfall in O'Brien.

Daylight

In O'Brien, California, the average length of the day in October is 11h and 6min.
On the first day of the month, sunrise is at 7:05 am and sunset at 6:51 pm. On the last day of October, in O'Brien, sunrise is at 7:38 am and sunset at 6:07 pm PDT.

Sunshine

The average sunshine in October in O'Brien, California, is 7.2h.

UV index

The average daily maximum UV index in October in O'Brien, California, is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 4 in October transform into the following instructions:
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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in October in O'Brien?

In October, in O'Brien, California, the average high-temperature is 71.4°F (21.9°C), and the average low-temperature is 46.8°F (8.2°C). in September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 84.2°F (29°C).

What is the average humidity in October in O'Brien?

The average relative humidity in October in O'Brien is 50%.

How many days does it rain in October in O'Brien?

In O'Brien, California, in October, during 5.3 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

When it does not snow in O'Brien?

April through October are months without snowfall in O'Brien, California.

Does it snow in O'Brien in October?

In O'Brien, California, in October, it doesn't snow. In November, it regularly snows.

What is the average length of the day in October in O'Brien?

In October, the average day length in O'Brien is 11h and 6min.

When are sunrise and sunset in October in O'Brien?

On the first day of October in O'Brien, California, sunrise is at 7:05 am and sunset at 6:51 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 6:07 pm PDT.

How long on average sun shines in October in O'Brien?

In O'Brien, the average sunshine duration in October is 7.2h.

How high is the UV index in October in O'Brien?

The average daily maximum UV index in October in O'Brien, California, is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
O'Brien, CA

Average temperature in October - O
  • Average high temperature in October: 71.4°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is December (47.8°F).

  • Average low temperature in October: 46.8°F

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).

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Average pressure in October
O'Brien, CA

Average pressure in October - O
  • Average pressure in October: 30.02"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).

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Average wind speed in October
O'Brien, CA

Average wind speed in October - O
  • Average wind speed in October: 5.3mph

The windiest months (with the highest average wind speed) are March and October (5.3mph).
The calmest months (with the lowest average wind speed) are August and November (4.5mph).

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Average humidity in October
O'Brien, CA

Average humidity in October - O
  • Average humidity in October: 50%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is August (37%).

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Average rainfall in October
O'Brien, CA

Average rainfall in October - O
  • Average rainfall in October: 1.3"

The wettest month (with the highest rainfall) is March (4.8").
The driest month (with the least rainfall) is July (0.12").

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Average rainfall days in October
O'Brien, CA

Average rainfall days in October - O
  • Average rainfall days in October: 5.3 days

The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (1.7 days).

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Average snowfall in October
O'Brien, CA

Average snowfall in October - O
  • Average snowfall in October: 0"

The month with the highest snowfall is November (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in October
O'Brien, CA

Average snowfall days in October - O
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in October /
Average sunshine in October
O'Brien, CA

Average daylight in October / Average sunshine in October - O
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in October: 7h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in October
O'Brien, CA

Average sunshine days in October - O
  • Average sunshine days in October: 24.5 days

The month with the most sunshine days is August (27.1 days).
The month with the least sunshine days is March (11.8 days).

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Average UV index in October
O'Brien, CA

Average UV index in October - O
  • Average UV index in October: 4

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February, November and December (UV index 2).

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Average cloud cover in October
O'Brien, CA

Average cloud cover in October - O
  • Average cloud cover in October: 17

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in October
O'Brien, CA

Average visibility in October - O
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).

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