Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
In October, the average high-temperature marginally drops from a moderately hot 76.5°F (24.7°C) in September to an agreeable 70.3°F (21.3°C). Throughout October, Palo Alto anticipates an average low-temperature of 54.5°F (12.5°C).Humidity
The months with the lowest humidity are September and October, with an average relative humidity of 65%.Rainfall
In October, the rain falls for 3.5 days. Throughout October, 0.43" (11mm) of precipitation is accumulated. In Palo Alto, during the entire year, the rain falls for 63.3 days and collects up to 9.53" (242mm) of precipitation.Daylight
In October, the average length of the day in Palo Alto 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 Palo Alto, the average sunshine in October is 7.1h.UV index
April through October, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 5 in October translates into the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. To protect against the Sun's most potent rays, avoid direct exposure around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October?
What are the least humid months?
What is the average humidity in October in Palo Alto?
How much does it rain in Palo Alto in October?
What is the average length of the day in October?
When are sunrise and sunset in October?
How long on average sun shines in October in Palo Alto?
What is the month with the highest UV index?
How high is the UV index in October?
Average temperature in October
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).
Average pressure in October
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).
Average wind speed in October
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).
Average humidity in October
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%).
Average rainfall in October
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").
Average rainfall days in October
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).
Average daylight in October /
Average sunshine in October
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).
Average sunshine days in October
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).
Average UV index in October
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).
Average cloud cover in October
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).
Average visibility in October
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).
Palo Alto, California, USA
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