October weather forecast
East Palo Alto, CA

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Weather in October

October, the same as September, in East Palo Alto, California, is another pleasant autumn month, with an average temperature varying between 70.3°F (21.3°C) and 54.5°F (12.5°C).

Temperature

In the transition to October, East Palo Alto observes a minor drop in the average high-temperature, shifting from a warm 76.5°F (24.7°C) in September to an agreeable 70.3°F (21.3°C). East Palo Alto records an average nighttime low of 54.5°F (12.5°C) in October.

Humidity

September and October, with an average relative humidity of 65%, are the least humid months.

Rainfall

In East Palo Alto, during October, the rain falls for 3.5 days and regularly aggregates up to 0.43" (11mm) of precipitation. Throughout the year, in East Palo Alto, there are 63.3 rainfall days, and 9.53" (242mm) of precipitation is accumulated.

Daylight

In East Palo Alto, the average length of the day in October is 11h and 13min.
On the first day of the month, sunrise is at 7:04 am and sunset at 6:51 pm. On the last day of October, sunrise is at 7:33 am and sunset at 6:11 pm PDT.

Sunshine

In October, the average sunshine is 7.1h.

UV index

The months with the highest UV index in East Palo Alto are April through October, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: In October, a regular UV index of 5 translates into these guidelines:
Exercise caution. Those with pale skin may experience burns in less than half an hour. When the Sun is at its strongest around midday, find shade and limit exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

What is the usual temperature for East Palo Alto in October?

October temperatures vary between a high-temperature of 70.3°F (21.3°C) and a low-temperature of 54.5°F (12.5°C).

What are the least humid months in East Palo Alto?

September and October, with an average relative humidity of 65%, are the least humid months in East Palo Alto.

What is the average humidity in October in East Palo Alto?

In East Palo Alto, California, the average relative humidity in October is 65%.

How many days does it rain in October in East Palo Alto?

In October, the rain falls for 3.5 days. Throughout October, 0.43" (11mm) of precipitation is accumulated.

How many hours of daylight does East Palo Alto have in October?

In October, the average day length in East Palo Alto, California, is 11h and 13min.

When are sunrise and sunset in October in East Palo Alto?

In October, on the first day of the month, sunrise is at 7:04 am and sunset at 6:51 pm. On the last day of the month, in East Palo Alto, sunrise is at 7:33 am and sunset at 6:11 pm PDT.

How many hours of sunshine does East Palo Alto have in October?

In October, the average sunshine duration in East Palo Alto is 7.1h.

When is the highest UV index in East Palo Alto?

April through October, with an average maximum UV index of 5, are months with the highest UV index.

What is the UV index intensity in October in East Palo Alto?

In East Palo Alto, California, the average daily maximum UV index in October is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from 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
East Palo Alto, CA

Average temperature in October - East Palo Alto, CA
  • Average high temperature in October: 70.3°F

The warmest months (with the highest average high temperature) are July and August (77.5°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in October: 54.5°F

The month with the highest average low temperature is August (57°F).
The coldest months (with the lowest average low temperature) are January and February (45.1°F).

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Average pressure in October
East Palo Alto, CA

Average pressure in October - East Palo Alto, CA
  • Average pressure in October: 29.99"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June and September (29.92"Hg).

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Average wind speed in October
East Palo Alto, CA

Average wind speed in October - East Palo Alto, CA
  • Average wind speed in October: 4.9mph

The windiest months (with the highest average wind speed) are April and May (6.5mph).
The calmest months (with the lowest average wind speed) are September and October (4.9mph).

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Average humidity in October
East Palo Alto, CA

Average humidity in October - East Palo Alto, CA
  • Average humidity in October: 65%

The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are September and October (65%).

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Average rainfall in October
East Palo Alto, CA

Average rainfall in October - East Palo Alto, CA
  • Average rainfall in October: 0.43"

The wettest month (with the highest rainfall) is February (2.01").
The driest month (with the least rainfall) is July (0").

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Average rainfall days in October
East Palo Alto, CA

Average rainfall days in October - East Palo Alto, CA
  • Average rainfall days in October: 3.5 days

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (0.6 days).

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Average daylight in October /
Average sunshine in October
East Palo Alto, CA

Average daylight in October / Average sunshine in October - East Palo Alto, CA
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in October: 7h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in October
East Palo Alto, CA

Average sunshine days in October - East Palo Alto, CA
  • Average sunshine days in October: 26.5 days

The month with the most sunshine days is July (30.2 days).
The month with the least sunshine days is March (18 days).

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Average UV index in October
East Palo Alto, CA

Average UV index in October - East Palo Alto, CA
  • Average UV index in October: 5

The months with the highest UV index are April, May, June, July, August, September and October (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).

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Average cloud cover in October
East Palo Alto, CA

Average cloud cover in October - East Palo Alto, CA
  • Average cloud cover in October: 16

The months with the most cloud cover are March and December (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 6).

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Average visibility in October
East Palo Alto, CA

Average visibility in October - East Palo Alto, 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).

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East Palo Alto, California, USA

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