October weather forecast and climate
Livermore, CA

A path in the scenic hilly and forest landscape of the famous Lake Del Valle Regional Park in Livermore, California
A path in the scenic hilly and forest landscape of the famous Lake Del Valle Regional Park in Livermore, California

Weather in October

October, like September, in Livermore, California, is a moderately hot autumn month, with average temperature varying between 52.5°F (11.4°C) and 74.3°F (23.5°C).

Temperature

In Livermore, the average high-temperature in October marginally drops, from 82.9°F (28.3°C) in September, to a still moderately hot 74.3°F (23.5°C). In October, the average low-temperature is 52.5°F (11.4°C).

Humidity

In October, the average relative humidity is 57%.

Rainfall

In Livermore, California, it is raining for 4.5 days, with typically 0.55" (14mm) of accumulated precipitation. In Livermore, during the entire year, the rain falls for 70.6 days and collects up to 11.3" (287mm) of precipitation.

Daylight

In October, the average length of the day in Livermore, California, is 11.2h.

Sunshine

In October, the average sunshine in Livermore, California, is 7.2h.

UV index

In Livermore, California, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. 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 Livermore?

In October, in Livermore, the average high-temperature is 74.3°F (23.5°C), and the average low-temperature is 52.5°F (11.4°C).

What is the average humidity in October in Livermore?

In Livermore, the average relative humidity in October is 57%.

How many days does it rain in October in Livermore?

In Livermore, in October, it is raining for 4.5 days, with typically 0.55" (14mm) of accumulated precipitation.

What is the average length of the day in October in Livermore?

In October, the average length of the day is 11.2h.

How many hours of sunshine does Livermore have in October?

In Livermore, California, the average sunshine in October is 7.2h.

What is the UV index reading in October in Livermore?

In Livermore, California, the average daily maximum UV index in October is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in October
Livermore, CA

Average temperature in October - Livermore, CA
  • Average high temperature in October: 74.3°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (54.9°F).

  • Average low temperature in October: 52.5°F

The month with the highest average low temperature is August (56.7°F).
The coldest month (with the lowest average low temperature) is January (41.4°F).

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Average pressure in October
Livermore, CA

Average pressure in October - Livermore, CA
  • Average pressure in October: 29.98"

The month with the highest atmospheric pressure is January (30.14").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in October
Livermore, CA

Average wind speed in October - Livermore, CA
  • Average wind speed in October: 4.5mph

The windiest months (with the highest average wind speed) are May and June (6.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).

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Average humidity in October
Livermore, CA

Average humidity in October - Livermore, CA
  • Average humidity in October: 57%

The month with the highest relative humidity is March (74%).
Months with the lowest relative humidity are July and September (55%).

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Average rainfall in October
Livermore, CA

Average rainfall in October - Livermore, CA
  • Average rainfall in October: 0.55"

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

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Average rainfall days in October
Livermore, CA

Average rainfall days in October - Livermore, CA
  • Average rainfall days in October: 4.5 days

The month with the highest number of rainy days is March (12.7 days).
The month with the least rainy days is August (1.3 days).

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

Average daylight in October / Average sunshine in October - Livermore, CA
  • Average daylight in October: 11.2h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • 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: 6h).

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Average sunshine days in October
Livermore, CA

Average sunshine days in October - Livermore, CA
  • Average sunshine days in October: 25.3 days

The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (17.6 days).

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Average UV index in October
Livermore, CA

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

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

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Average cloud cover in October
Livermore, CA

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

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

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Average visibility in October
Livermore, CA

Average visibility in October - Livermore, CA
  • Average visibility in October: 6mi

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

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