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
The commencement of October brings an average high-temperature of an enjoyable 67.1°F (19.5°C), marking an inconsequential divergence from September. During October, the nighttime temperature averages to a moderate 55.6°F (13.1°C).Humidity
October is the least humid month, with an average relative humidity of 70%.Rainfall
In Millbrae, in October, it is raining for 5.2 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, there are 81.5 rainfall days, and 12.8" (325mm) of precipitation is accumulated.Daylight
In October, the average length of the day is 11h and 13min.On the first day of the month, sunrise is at 7:05 am and sunset at 6:52 pm. On the last day of October, sunrise is at 7:34 am and sunset at 6:11 pm PDT.
Sunshine
In Millbrae, the average sunshine in October is 7.1h.UV index
In October, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 4 in October converts into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature?
What is the least humid month?
What is the average humidity in October?
How much does it rain in October?
How many hours of daylight does Millbrae have in October?
When are sunrise and sunset in October?
How many hours of sunshine does Millbrae have in October?
What is the UV index reading in October in Millbrae?
Average temperature in October
Millbrae, CA
- Average high temperature in October: 67.1°F
The warmest month (with the highest average high temperature) is September (70.2°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in October: 55.6°F
The month with the highest average low temperature is September (56.8°F).
The coldest month (with the lowest average low temperature) is January (47.5°F).
Average pressure in October
Millbrae, CA
- Average pressure in October: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in October
Millbrae, CA
- Average wind speed in October: 6.4mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is September (6.1mph).
Average humidity in October
Millbrae, CA
- Average humidity in October: 70%
The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall in October
Millbrae, CA
- Average rainfall in October: 0.67"
The wettest month (with the highest rainfall) is February (2.44").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in October
Millbrae, CA
- Average rainfall days in October: 5.2 days
The month with the highest number of rainy days is March (12.8 days).
The months with the least rainy days are June and July (2.4 days).
Average daylight in October /
Average sunshine in October
Millbrae, 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: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in October
Millbrae, CA
- Average sunshine days in October: 24.2 days
The month with the most sunshine days is July (24.6 days).
The month with the least sunshine days is March (16.3 days).
Average UV index in October
Millbrae, CA
- Average UV index in October: 4
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February and December (UV index 3).
Average cloud cover in October
Millbrae, CA
- Average cloud cover in October: 18
The month with the most cloud cover is March (Cloud cover 36).
The months with the least cloud cover are July and September (Cloud cover 15).
Average visibility in October
Millbrae, 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).
Millbrae, California, USA
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