Climate and monthly weather forecast
Asti, CA

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Weather in January

January in Asti, California, is a refreshing winter month, with temperature in the range of an average low of 39.9°F (4.4°C) and an average high of 56.5°F (13.6°C). Asti's average high-temperature in January is a refreshing 56.5°F (13.6°C), indicating a subtle variation from December. Weather in January »

Weather in February

February, the last month of the winter in Asti, is another mild month, with an average temperature varying between 39.7°F (4.3°C) and 57.9°F (14.4°C). February's onset records an average high-temperature of a still mild 57.9°F (14.4°C), a near match to January's 56.5°F (13.6°C). Weather in February »

Weather in March

The first month of the spring, March, is also a moderate month in Asti, California, with an average temperature varying between 59.2°F (15.1°C) and 39.7°F (4.3°C). March records an average high-temperature of a still refreshing 59.2°F (15.1°C), indicating a minor variation from the preceding month. Weather in March »

Weather in April

April in Asti, California, is a comfortable spring month, with an average temperature varying between 65.1°F (18.4°C) and 42.6°F (5.9°C). April's arrival sees a mild rise in the average high-temperature, transitioning from March's refreshing 59.2°F (15.1°C) to an enjoyable 65.1°F (18.4°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Asti, California, with an average temperature ranging between min 46°F (7.8°C) and max 70.9°F (21.6°C). Asti's weather in May shows a minor rise in the average high-temperature, moving slightly up from April's comfortable 65.1°F (18.4°C) to a pleasant 70.9°F (21.6°C). Weather in May »

Weather in June

June, the first month of the summer in Asti, is a warm month, with temperature in the range of an average high of 79.9°F (26.6°C) and an average low of 51.4°F (10.8°C). The arrival of June sees a shift in the average high-temperature, moving from a pleasant 70.9°F (21.6°C) in May to a moderately hot 79.9°F (26.6°C). Weather in June »

Weather in July

July in Asti, California, is a hot summer month, with temperature in the range of an average low of 53.8°F (12.1°C) and an average high of 86.2°F (30.1°C). The warmest month is July, with an average high-temperature of 86.2°F (30.1°C) and an average low-temperature of 53.8°F (12.1°C). During July, the heat index is computed to be a hot 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Asti, California, with temperature in the range of an average high of 85.8°F (29.9°C) and an average low of 54.1°F (12.3°C). The transition into August shows a subtle variation to a warm 85.8°F (29.9°C) from July's 86.2°F (30.1°C) in the average high-temperature. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Asti, California, with temperature in the range of an average high of 82.4°F (28°C) and an average low of 52.7°F (11.5°C). September's advent denotes a minor fluctuation in the average high-temperature to a still moderately hot 82.4°F (28°C) from August's 85.8°F (29.9°C). Weather in September »

Weather in October

October, like September, is an agreeable autumn month in Asti, California, with an average temperature varying between 48.7°F (9.3°C) and 73.2°F (22.9°C). A change in temperatures is noted as September gives way to October, with average highs reducing from a moderately hot 82.4°F (28°C) to an agreeable 73.2°F (22.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is another comfortable month in Asti, California, with temperature in the range of an average low of 42.6°F (5.9°C) and an average high of 62.6°F (17°C). November indicates a shift in the average high-temperature, from October's pleasant 73.2°F (22.9°C) to a refreshing 62.6°F (17°C). Weather in November »

Weather in December

December, the first month of the winter in Asti, is still a cool month, with an average temperature fluctuating between 38.5°F (3.6°C) and 54.9°F (12.7°C). With an average high-temperature of 54.9°F (12.7°C) and an average low-temperature of 38.5°F (3.6°C), December is the coldest month. Weather in December »
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Frequently asked questions

How much does it rain in Asti?

In Asti, during the entire year, the rain falls for 82.4 days and collects up to 20.75" (527mm) of precipitation.

When it does not snow in Asti?

January, March through December are months without snowfall.

How much does it snow in Asti?

In Asti, during the entire year, snow aggregates up to 0.16" (4mm).

What is the rainiest month in Asti?

February is the month with the most rainfall in Asti, California. Rain falls for 9.5 days and accumulates 4.25" (108mm) of precipitation.

When does it snow in Asti?

The only month with snowfall in Asti is February.

What is the snowiest month in Asti?

February is the month with the most snowfall in Asti, California. Snow falls for 0.2 days and accumulates 0.16" (4mm) of snow.

What is the most humid month in Asti?

With an average relative humidity of 77%, March is the most humid month in Asti.

When is Daylight Saving Time (DST) in Asti?

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.

When are the longest days in Asti?

With an average of 14h and 48min of daylight, June has the longest days of the year.

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

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

What is the hottest time of year in Asti?

July is the warmest month in Asti, exhibiting average temperatures of 86.2°F (30.1°C) at the peak and 53.8°F (12.1°C) at the base.

What are the least humid months in Asti?

July and September, with an average relative humidity of 57%, are the least humid months.

What is the driest month in Asti?

July and August are months with the least rain when the rain falls for 1.2 days and typically aggregates up to 0.04" (1mm) of rain.

What month has the most sunshine in Asti?

With an average of 12h of sunshine, July has the most sunshine of the year in Asti.

What is the month with the lowest UV index in Asti?

The month with the lowest UV index is November, with an average maximum UV index of 2.

What part of the year is the coldest in Asti?

The month of December, characterized by an average high of 54.9°F (12.7°C) and a low of 38.5°F (3.6°C), is recognized as the coldest in Asti, California.

What is the month with the shortest days in Asti?

With an average of 9h and 30min of daylight, December has the shortest days of the year in Asti, California.

What is the month with the least sunshine in Asti?

The month with the least sunshine in Asti is December, with an average of 5.4h of sunshine.

Average temperature
Asti, CA

Average temperature - Asti, CA

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is December (54.9°F).

The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is December (38.5°F).

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Average pressure
Asti, CA

Average pressure - Asti, CA

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).

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Average wind speed
Asti, CA

Average wind speed - Asti, CA

The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is November (4.6mph).

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Average humidity
Asti, CA

Average humidity - Asti, CA

The month with the highest relative humidity is March (77%).
The months with the lowest relative humidity are July and September (57%).

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Average rainfall
Asti, CA

Average rainfall - Asti, CA

The wettest month (with the highest rainfall) is February (4.25").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days
Asti, CA

Average rainfall days - Asti, CA

The month with the highest number of rainy days is March (14.6 days).
The months with the least rainy days are July and August (1.2 days).

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Average snowfall
Asti, CA

Average snowfall - Asti, CA

The month with the highest snowfall is February (0.16").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days
Asti, CA

Average snowfall days - Asti, CA

The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight / Average sunshine
Asti, CA

Average daylight / Average sunshine - Asti, CA

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

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 24min).

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Average sunshine days
Asti, CA

Average sunshine days - Asti, CA

The month with the most sunshine days is July (29.4 days).
The month with the least sunshine days is March (15.2 days).

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Average visibility
Asti, CA

Average visibility - Asti, 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).

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Asti, California, USA

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