Monthly weather forecast and climate
Los Altos Hills, CA

Weather in January

January, the same as December, in Los Altos Hills, California, is another mild winter month, with average temperature fluctuating between 46.4°F (8°C) and 56.7°F (13.7°C). In Los Altos Hills, the average high-temperature in January is practically the same as in December - a still moderate 56.7°F (13.7°C). Weather in January »

Weather in February

The last month of the winter, February, is also a moderate month in Los Altos Hills, California, with temperature in the range of an average high of 58.3°F (14.6°C) and an average low of 46.4°F (8°C). In Los Altos Hills, the average high-temperature in February is essentially the same as in January - a still mild 58.3°F (14.6°C). Weather in February »

Weather in March

The first month of the spring, March, is also a moderate month in Los Altos Hills, California, with temperature in the range of an average high of 59.5°F (15.3°C) and an average low of 46.9°F (8.3°C). In March, the average high-temperature is almost the same as in February - a still mild 59.5°F (15.3°C). Weather in March »

Weather in April

April in Los Altos Hills, California, is a comfortable spring month, with average temperature ranging between max 62.2°F (16.8°C) and min 48.2°F (9°C). In Los Altos Hills, the average high-temperature is essentially the same as in March - an enjoyable 62.2°F (16.8°C). Weather in April »

Weather in May

The last month of the spring, May, is another comfortable month in Los Altos Hills, California, with average temperature varying between 50.2°F (10.1°C) and 64.9°F (18.3°C). In May, the average high-temperature is essentially the same as in April - a still enjoyable 64.9°F (18.3°C). 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 high of 70°F (21.1°C) and an average low of 53.4°F (11.9°C). In June, the average high-temperature is relatively the same as in May - a pleasant 70°F (21.1°C). Weather in June »

Weather in July

July, the same as June, in Los Altos Hills, California, is another pleasant summer month, with average temperature varying between 72.7°F (22.6°C) and 54.7°F (12.6°C). In July, the average high-temperature is almost the same as in June - a still agreeable 72.7°F (22.6°C). Weather in July »

Weather in August

August, the last month of the summer, in Los Altos Hills, is also an agreeable month, with average temperature varying between 73°F (22.8°C) and 56.7°F (13.7°C). With an average high-temperature of 73°F (22.8°C) and an average low-temperature of 56.7°F (13.7°C), August is the warmest month. Weather in August »

Weather in September

September, the first month of the autumn, in Los Altos Hills, is still a pleasant month, with average temperature fluctuating between 56.7°F (13.7°C) and 72.5°F (22.5°C). In Los Altos Hills, the average high-temperature in September is almost the same as in August - a still pleasant 72.5°F (22.5°C). 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 high of 68.2°F (20.1°C) and an average low of 54.9°F (12.7°C). In October, the average high-temperature is practically the same as in September - a still agreeable 68.2°F (20.1°C). Weather in October »

Weather in November

November, the last month of the autumn, in Los Altos Hills, is another comfortable month, with average temperature ranging between min 50.5°F (10.3°C) and max 61.9°F (16.6°C). In November, the average high-temperature marginally drops, from a pleasant 68.2°F (20.1°C) in October, to an enjoyable 61.9°F (16.6°C). Weather in November »

Weather in December

The first month of the winter, December, is also a moderate month in Los Altos Hills, California, with temperature in the range of an average high of 55.8°F (13.2°C) and an average low of 47.1°F (8.4°C). With an average high-temperature of 55.8°F (13.2°C) and an average low-temperature of 47.1°F (8.4°C), December is the coldest month. Weather in December »
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FAQ

How many days does it rain in Los Altos Hills?

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

What is the rainiest month in Los Altos Hills?

February is the month with the most rainfall in Los Altos Hills. 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?

Months with the lowest UV index 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, with an average relative humidity of 76%.

What is the driest month in Los Altos Hills?

June is the month with the least rainfall. Rain falls for 0.9 days and accumulates 0.04" (1mm) of precipitation.

When are the longest days in Los Altos Hills?

With an average of 14.7h of daylight, June has the longest days of the year in Los Altos Hills.

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

Months with the highest UV index in Los Altos Hills, California, are June through September, with an average maximum UV index of 5.

What month has the most sunshine in Los Altos Hills?

July has the most sunshine of the year in Los Altos Hills, California, with an average of 12h of sunshine.

What is the warmest month in Los Altos Hills?

August is the warmest month in Los Altos Hills, with an average high-temperature of 73°F (22.8°C) and an average low-temperature of 56.7°F (13.7°C).

What is the least humid month in Los Altos Hills?

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

What is the coldest month in Los Altos Hills?

December is the coldest month in Los Altos Hills, California, with an average high-temperature of 55.8°F (13.2°C) and an average low-temperature of 47.1°F (8.4°C).

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

The month with the shortest days in Los Altos Hills, California, is December, with an average of 9.6h of daylight.

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

With an average of 5.9h of sunshine, December has the least sunshine of the year in Los Altos Hills, California.

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).

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).

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Average pressure
Los Altos Hills, CA

Average pressure - Los Altos Hills, CA

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is September (29.92").

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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).

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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%).

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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").

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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).

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

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.9h).

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Average sunshine days
Los Altos Hills, CA

Average sunshine days - Los Altos Hills, CA

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).

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Average UV index
Los Altos Hills, CA

Average UV index - Los Altos Hills, CA

Months with the highest UV index are June, July, August and September (UV index 5).
Months with the lowest UV index are February, November and December (UV index 3).

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Average visibility
Los Altos Hills, CA

Average visibility - Los Altos Hills, CA

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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