Climate and monthly weather forecast
Los Altos Hills, CA

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Weather in January

January, like December, is a moderate winter month in Los Altos Hills, California, with an average temperature fluctuating between 46.4°F (8°C) and 56.7°F (13.7°C). December's transformation into January witnesses an average high-temperature of a still mild 56.7°F (13.7°C), noting a minor change from the preceding month. Weather in January »

Weather in February

February, the last month of the winter in Los Altos Hills, is another refreshing month, with an average temperature varying between 58.3°F (14.6°C) and 46.4°F (8°C). Los Altos Hills marks the onset of February with an average high-temperature of a still mild 58.3°F (14.6°C), a subtle shift from January's 56.7°F (13.7°C). Weather in February »

Weather in March

The first month of the spring, March, is still a mild month in Los Altos Hills, California, with an average temperature fluctuating between 59.5°F (15.3°C) and 46.9°F (8.3°C). Los Altos Hills experiences an average high-temperature of a still moderate 59.5°F (15.3°C) in March, marking an insignificant shift from 58.3°F (14.6°C) in February. Weather in March »

Weather in April

April is an enjoyable spring month in Los Altos Hills, California, with temperature in the range of an average high of 62.2°F (16.8°C) and an average low of 48.2°F (9°C). Los Altos Hills's shift into April sets the average high-temperature at an enjoyable 62.2°F (16.8°C), a figure that deviates only slightly from March's 59.5°F (15.3°C). Weather in April »

Weather in May

May, the last month of the spring in Los Altos Hills, is another refreshing month, with an average temperature fluctuating between 50.2°F (10.1°C) and 64.9°F (18.3°C). At the start of May, Los Altos Hills's average high-temperature reaches a still comfortable 64.9°F (18.3°C), subtly different from the preceding month. Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Los Altos Hills, California, with temperature in the range of an average low of 53.4°F (11.9°C) and an average high of 70°F (21.1°C). The arrival of June is marked by an average high-temperature of an agreeable 70°F (21.1°C), bearing a close resemblance to May. Weather in June »

Weather in July

July, the same as June, in Los Altos Hills, California, is an agreeable summer month, with temperature in the range of an average low of 54.7°F (12.6°C) and an average high of 72.7°F (22.6°C). At the start of July, Los Altos Hills's average high-temperature reaches a still pleasant 72.7°F (22.6°C), subtly different from the preceding month. Weather in July »

Weather in August

August, the last month of the summer in Los Altos Hills, is another pleasant month, with an average temperature fluctuating between 73°F (22.8°C) and 56.7°F (13.7°C). In Los Altos Hills, temperatures reach their average annual highs in August, measuring 73°F (22.8°C) and a minimum average of 56.7°F (13.7°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Los Altos Hills, California, with temperature in the range of an average low of 56.7°F (13.7°C) and an average high of 72.5°F (22.5°C). The beginning of September records an average high-temperature of a still agreeable 72.5°F (22.5°C), almost echoing the conditions of the previous month. Weather in September »

Weather in October

October, the same as September, in Los Altos Hills, California, is an agreeable autumn month, with temperature in the range of an average low of 54.9°F (12.7°C) and an average high of 68.2°F (20.1°C). Los Altos Hills's shift into October is marked by a subtle change to a still pleasant 68.2°F (20.1°C) from September's 72.5°F (22.5°C) in temperature. Weather in October »

Weather in November

The last month of the autumn, November, is another comfortable month in Los Altos Hills, California, with an average temperature varying between 61.9°F (16.6°C) and 50.5°F (10.3°C). With the beginning of November, the average high-temperature shows a small decrease, transitioning from a pleasant 68.2°F (20.1°C) in October to a refreshing 61.9°F (16.6°C). Weather in November »

Weather in December

The first month of the winter, December, is still a mild month in Los Altos Hills, California, with an average temperature fluctuating between 47.1°F (8.4°C) and 55.8°F (13.2°C). The coldest temperatures occur during December, when averages reach a peak of 55.8°F (13.2°C) and a low of 47.1°F (8.4°C). Weather in December »
Updated: Feb 10, 2024 | Published by: Weather U.S. | About Us / Weather Forecasting / Data Sources

Frequently asked questions

How much does it rain in Los Altos Hills?

Throughout the year, in Los Altos Hills, California, there are 57.5 rainfall days, and 4.76" (121mm) of precipitation is accumulated.

What is the wettest month in Los Altos Hills?

February is the month with the most rainfall. Rain falls for 6.6 days and accumulates 0.98" (25mm) of precipitation.

What is the month with the lowest UV index in Los Altos Hills?

The months with the lowest UV index in Los Altos Hills, California, are February, November and December, with an average maximum UV index of 3.

What is the most humid month in Los Altos Hills?

March is the most humid month in Los Altos Hills, California, with an average relative humidity of 76%.

When is Daylight Saving Time (DST) in Los Altos Hills?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

What is the driest month in Los Altos Hills?

The month with the least rainfall in Los Altos Hills, California, is June, when the rain falls for 0.9 days and typically collects 0.04" (1mm) of precipitation.

When are the longest days in Los Altos Hills?

June has the longest days of the year in Los Altos Hills, with an average of 14h and 42min of daylight.

When is the highest UV index in Los Altos Hills?

The months with the highest UV index are June through September, with an average maximum UV index of 5.

What month has the most sunshine in Los Altos Hills?

The month with the most sunshine is July, with an average of 12h of sunshine.

What are the warmest months in Los Altos Hills?

August registers as the month with the average highest temperatures in Los Altos Hills, reaching 73°F (22.8°C) at its peak and 56.7°F (13.7°C) at the lowest.

What is the least humid month in Los Altos Hills?

The least humid month is October, with an average relative humidity of 68%.

What are the coldest months in Los Altos Hills?

In Los Altos Hills, December is the coldest month, with temperatures averaging a high of 55.8°F (13.2°C) and a low of 47.1°F (8.4°C).

What is the month with the shortest days in Los Altos Hills?

December has the shortest days of the year in Los Altos Hills, California, with an average of 9h and 36min of daylight.

What is the month with the least sunshine in Los Altos Hills?

December has the least sunshine of the year, with an average of 5.9h of sunshine.

Average temperature
Los Altos Hills, CA

Average temperature - Los Altos Hills, CA

The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (55.8°F).

The months with the highest average low temperature are August and September (56.7°F).
The coldest months (with the lowest average low temperature) are January and February (46.4°F).

Average pressure
Los Altos Hills, CA

Average pressure - Los Altos Hills, CA

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
Los Altos Hills, CA

Average wind speed - Los Altos Hills, CA

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity
Los Altos Hills, CA

Average humidity - Los Altos Hills, CA

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is October (68%).

Average rainfall
Los Altos Hills, CA

Average rainfall - Los Altos Hills, CA

The wettest month (with the highest rainfall) is February (0.98").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days
Los Altos Hills, CA

Average rainfall days - Los Altos Hills, CA

The month with the highest number of rainy days is March (10.6 days).
The month with the least rainy days is June (0.9 days).

Average daylight / Average sunshine
Los Altos Hills, CA

Average daylight / Average sunshine - Los Altos Hills, CA

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).

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days
Los Altos Hills, CA

Average sunshine days - Los Altos Hills, CA

The months with the most sunshine days are June and July (26.3 days).
The month with the least sunshine days is March (18.3 days).

Average UV index
Los Altos Hills, CA

Average UV index - Los Altos Hills, CA

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, November and December (UV index 3).

Average visibility
Los Altos Hills, CA

Average visibility - Los Altos Hills, CA

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).

Los Altos Hills, California, USA

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