Monthly weather forecast and climate
Vallecito, CA

Weather in January

January in Vallecito, California, is a moderate winter month, with average temperature fluctuating between 39.2°F (4°C) and 55.9°F (13.3°C). In Vallecito, the average high-temperature is almost the same as in December - a moderate 55.9°F (13.3°C). Weather in January »

Weather in February

February, the last month of the winter, in Vallecito, is another mild month, with average temperature varying between 39°F (3.9°C) and 56.3°F (13.5°C). In February, the average high-temperature is relatively the same as in January - a still moderate 56.3°F (13.5°C). Weather in February »

Weather in March

The first month of the spring, March, is still a mild month in Vallecito, California, with average temperature ranging between max 59.9°F (15.5°C) and min 40.8°F (4.9°C). In March, the average high-temperature is almost the same as in February - a still mild 59.9°F (15.5°C). Weather in March »

Weather in April

April is a comfortable spring month in Vallecito, California, with average temperature varying between 65.8°F (18.8°C) and 44.1°F (6.7°C). In April, the average high-temperature marginally rises, from a moderate 59.9°F (15.5°C) in March, to a comfortable 65.8°F (18.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Vallecito, California, with average temperature ranging between min 49.6°F (9.8°C) and max 73.4°F (23°C). In May, the average high-temperature slightly increases, from a comfortable 65.8°F (18.8°C) in April, to a warm 73.4°F (23°C). Weather in May »

Weather in June

June, the first month of the summer, in Vallecito, is also a moderately hot month, with average temperature fluctuating between 56.8°F (13.8°C) and 84.2°F (29°C). In Vallecito, the average high-temperature increases, from a warm 73.4°F (23°C) in May, to a still moderately hot 84.2°F (29°C). Weather in June »

Weather in July

July in Vallecito, California, is a tropical summer month, with temperature in the range of an average high of 91.9°F (33.3°C) and an average low of 62.6°F (17°C). The warmest month is July, with an average high-temperature of 91.9°F (33.3°C) and an average low-temperature of 62.6°F (17°C). Weather in July »

Weather in August

August, the last month of the summer, in Vallecito, is also a hot month, with average temperature fluctuating between 90.9°F (32.7°C) and 62.2°F (16.8°C). In Vallecito, the average high-temperature in August is essentially the same as in July - a still hot 90.9°F (32.7°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Vallecito, California, with average temperature ranging between max 85.3°F (29.6°C) and min 58.8°F (14.9°C). In Vallecito, the average high-temperature marginally drops, from a tropical 90.9°F (32.7°C) in August, to a warm 85.3°F (29.6°C). Weather in September »

Weather in October

October, like September, in Vallecito, California, is a moderately hot autumn month, with temperature in the range of an average high of 73.8°F (23.2°C) and an average low of 51.8°F (11°C). In Vallecito, the average high-temperature drops, from 85.3°F (29.6°C) in September, to a still moderately hot 73.8°F (23.2°C). Weather in October »

Weather in November

November, the last month of the autumn, in Vallecito, is also an enjoyable month, with average temperature varying between 62.1°F (16.7°C) and 43.7°F (6.5°C). In November, the average high-temperature drops, from a moderately hot 73.8°F (23.2°C) in October, to a comfortable 62.1°F (16.7°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cool month in Vallecito, California, with average temperature varying between 53.2°F (11.8°C) and 37.8°F (3.2°C). With an average high-temperature of 53.2°F (11.8°C) and an average low-temperature of 37.8°F (3.2°C), December is the coldest month. Weather in December »
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FAQ

How many days does it rain in Vallecito?

Throughout the year, in Vallecito, California, there are 74.4 rainfall days, and 22.87" (581mm) of precipitation is accumulated.

When does it snow in Vallecito?

January through March, November and December are months with snowfall.

How many days does it snow in Vallecito?

Throughout the year, there are 2.2 snowfall days, and 4.09" (104mm) of snow is accumulated.

When does it snow the most in Vallecito?

The month with the most snowfall in Vallecito, California, is February when snow falls for 1.2 days and typically aggregates up to 2.32" (59mm) of snow.

What is the most humid month in Vallecito?

March is the most humid month, with an average relative humidity of 71%.

What is the wettest month in Vallecito?

March is the month with the most rainfall. Rain falls for 13 days and accumulates 4.76" (121mm) of precipitation.

When it does not snow in Vallecito?

April through October are months without snowfall in Vallecito.

When are the longest days in Vallecito?

June has the longest days of the year, with an average of 14.8h of daylight.

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

Months with the highest UV index are June and July, with an average maximum UV index of 7.

What is the warmest month in Vallecito?

With an average high-temperature of 91.9°F (33.3°C) and an average low-temperature of 62.6°F (17°C), July is the warmest month in Vallecito.

What are the least humid months in Vallecito?

July and August, with an average relative humidity of 34%, are the least humid months.

What is the driest month in Vallecito?

July and August are months with the least rain in Vallecito when the rain falls for 1.4 days and typically aggregates up to 0.04" (1mm) of rain.

What month has the most sunshine in Vallecito?

July has the most sunshine of the year in Vallecito, California, with an average of 12.2h of sunshine.

When is the lowest UV index in Vallecito?

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

What is the coldest month in Vallecito?

December is the coldest month, with an average high-temperature of 53.2°F (11.8°C) and an average low-temperature of 37.8°F (3.2°C).

What is the month with the shortest days in Vallecito?

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

What is the month with the least sunshine in Vallecito?

With an average of 5.8h of sunshine, December has the least sunshine of the year.

Average temperature
Vallecito, CA

Average temperature - Vallecito, CA

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is December (53.2°F).

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is December (37.8°F).

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Average pressure
Vallecito, CA

Average pressure - Vallecito, CA

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed
Vallecito, CA

Average wind speed - Vallecito, CA

The windiest month (with the highest average wind speed) is February (5.7mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).

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Average humidity
Vallecito, CA

Average humidity - Vallecito, CA

The month with the highest relative humidity is March (71%).
Months with the lowest relative humidity are July and August (34%).

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Average rainfall
Vallecito, CA

Average rainfall - Vallecito, CA

The wettest month (with the highest rainfall) is March (4.76").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days
Vallecito, CA

Average rainfall days - Vallecito, CA

The month with the highest number of rainy days is March (13 days).
The month with the least rainy days is August (1.2 days).

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Average snowfall
Vallecito, CA

Average snowfall - Vallecito, CA

The month with the highest snowfall is February (2.32").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Vallecito, CA

Average snowfall days - Vallecito, CA

The month with the highest number of snowfall days is February (1.2 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Vallecito, CA

Average daylight / Average sunshine - Vallecito, CA

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

The month with the most sunshine is July (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days
Vallecito, CA

Average sunshine days - Vallecito, CA

The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is March (16.8 days).

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Average visibility
Vallecito, CA

Average visibility - Vallecito, 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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