October weather forecast and climate
O'Brien, CA

Weather in October

October, like September, is an agreeable autumn month in O'Brien, California, with average temperature ranging between min 46.8°F (8.2°C) and max 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, is 46.8°F (8.2°C).

Humidity

In October, the average relative humidity is 50%.

Rainfall

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

Snowfall

In O'Brien snow does not fall in April through October.

Daylight

In O'Brien, California, the average length of the day is 11.1h.

Sunshine

The average sunshine in O'Brien 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 unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 temperature in October in O'Brien?

The average high-temperature, in October, in O'Brien, is 71.4°F (21.9°C), while the average low-temperature is 46.8°F (8.2°C).

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

In October, the average relative humidity in O'Brien is 50%.

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

In October, the rain falls for 5.3 days. Throughout October, 1.3" (33mm) of precipitation is accumulated.

Does it snow in O'Brien in October?

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

When it does not snow in O'Brien?

In O'Brien, California, snow does not fall in April through October.

How many hours of daylight does O'Brien have in October?

The average length of the day in October in O'Brien is 11.1h.

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

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

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

In O'Brien, California, the average daily maximum UV index in October is 4. A UV Index reading of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.

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"

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

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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").
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).
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: 11.1h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in October: 7.2h

The month with the most sunshine is July (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 5.3h).

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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).
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

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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