Monthly weather forecast and climate
Alpine, CA

Weather in January

January, the same as December, is another enjoyable winter month in Alpine, California, with average temperature fluctuating between 63.9°F (17.7°C) and 45°F (7.2°C). In January, the average high-temperature is practically the same as in December - a still comfortable 63.9°F (17.7°C). Weather in January »

Weather in February

The last month of the winter, February, is also an enjoyable month in Alpine, California, with average temperature varying between 44.2°F (6.8°C) and 63.3°F (17.4°C). In February, the average high-temperature is almost the same as in January - a still enjoyable 63.3°F (17.4°C). Weather in February »

Weather in March

March, the first month of the spring, in Alpine, is still a comfortable month, with average temperature ranging between max 66.7°F (19.3°C) and min 46°F (7.8°C). In March, the average high-temperature is almost the same as in February - a still enjoyable 66.7°F (19.3°C). Weather in March »

Weather in April

April is an agreeable spring month in Alpine, California, with average temperature fluctuating between 70.7°F (21.5°C) and 47.8°F (8.8°C). In Alpine, the average high-temperature is essentially the same as in March - an agreeable 70.7°F (21.5°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Alpine, California, with average temperature fluctuating between 73.6°F (23.1°C) and 51.3°F (10.7°C). In May, the average high-temperature is relatively the same as in April - a warm 73.6°F (23.1°C). Weather in May »

Weather in June

June, the first month of the summer, in Alpine, is still a warm month, with average temperature ranging between min 56.3°F (13.5°C) and max 81.3°F (27.4°C). In Alpine, the average high-temperature slightly increases, from 73.6°F (23.1°C) in May, to a still warm 81.3°F (27.4°C). Weather in June »

Weather in July

July, like June, in Alpine, California, is a moderately hot summer month, with average temperature fluctuating between 62.8°F (17.1°C) and 85.8°F (29.9°C). In July, the average high-temperature is practically the same as in June - a still moderately hot 85.8°F (29.9°C). Weather in July »

Weather in August

August, the last month of the summer, in Alpine, is a hot month, with average temperature varying between 64.9°F (18.3°C) and 87.3°F (30.7°C). With an average high-temperature of 87.3°F (30.7°C) and an average low-temperature of 64.9°F (18.3°C), August is the warmest month. The average heat index in August is evaluated at a tropical 90.5°F (32.5°C). Weather in August »

Weather in September

September, the first month of the autumn, in Alpine, is also a moderately hot month, with average temperature ranging between max 84.2°F (29°C) and min 62.8°F (17.1°C). In Alpine, the average high-temperature is essentially the same as in August - a warm 84.2°F (29°C). Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Alpine, California, with average temperature varying between 76.8°F (24.9°C) and 56.3°F (13.5°C). In Alpine, the average high-temperature marginally drops, from a moderately hot 84.2°F (29°C) in September, to a still warm 76.8°F (24.9°C). Weather in October »

Weather in November

November, the last month of the autumn, in Alpine, is another pleasant month, with average temperature varying between 50.2°F (10.1°C) and 69.1°F (20.6°C). In Alpine, the average high-temperature marginally drops, from a warm 76.8°F (24.9°C) in October, to an agreeable 69.1°F (20.6°C). Weather in November »

Weather in December

December, the first month of the winter, in Alpine, is still a comfortable month, with average temperature varying between 61.3°F (16.3°C) and 44.6°F (7°C). The coldest month is December, with an average high-temperature of 61.3°F (16.3°C) and an average low-temperature of 44.6°F (7°C). Weather in December »
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FAQ

How much does it rain in Alpine?

Throughout the year, in Alpine, there are 62 rainfall days, and 6.38" (162mm) of precipitation is accumulated.

What is the wettest month in Alpine?

The month with the most rainfall is February when the rain falls for 6.4 days and typically aggregates up to 0.94" (24mm) of precipitation.

What is the most humid month in Alpine?

With an average relative humidity of 62%, May is the most humid month in Alpine, California.

What is the driest month in Alpine?

The month with the least rainfall in Alpine is June when the rain falls for 1.5 days and typically collects 0.08" (2mm) of precipitation.

When are the longest days in Alpine?

June has the longest days of the year in Alpine, California, with an average of 14.3h of daylight.

What is the month with the most sunshine in Alpine?

Months with the most sunshine in Alpine are June and July, with an average of 12.1h of sunshine.

What is the month with the highest UV index in Alpine?

June through September, with an average maximum UV index of 6, are months with the highest UV index in Alpine.

What is the warmest month in Alpine?

The warmest month is August, with an average high-temperature of 87.3°F (30.7°C) and an average low-temperature of 64.9°F (18.3°C).

What is the least humid month in Alpine?

With an average relative humidity of 51%, November is the least humid month in Alpine.

When is the lowest UV index in Alpine?

November and December, with an average maximum UV index of 3, are months with the lowest UV index in Alpine.

What is the coldest month in Alpine?

The coldest month is December, with an average high-temperature of 61.3°F (16.3°C) and an average low-temperature of 44.6°F (7°C).

What is the month with the shortest days in Alpine?

December has the shortest days of the year in Alpine, California, with an average of 10h of daylight.

What is the month with the least sunshine in Alpine?

December has the least sunshine of the year, with an average of 6.7h of sunshine.

Average temperature
Alpine, CA

Average temperature - Alpine, CA

The warmest month (with the highest average high temperature) is August (87.3°F).
The month with the lowest average high temperature is December (61.3°F).

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (44.2°F).

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Average pressure
Alpine, CA

Average pressure - Alpine, CA

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed
Alpine, CA

Average wind speed - Alpine, CA

The windiest month (with the highest average wind speed) is May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).

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Average rainfall
Alpine, CA

Average rainfall - Alpine, CA

The wettest month (with the highest rainfall) is February (0.94").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days
Alpine, CA

Average rainfall days - Alpine, CA

The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (1.5 days).

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Average daylight / Average sunshine
Alpine, CA

Average daylight / Average sunshine - Alpine, CA

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

Months with the most sunshine are June and July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days
Alpine, CA

Average sunshine days - Alpine, CA

The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is July (19.4 days).

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Average UV index
Alpine, CA

Average UV index - Alpine, CA

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are November and December (UV index 3).

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Average visibility
Alpine, CA

Average visibility - Alpine, 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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