Monthly weather forecast and climate
Boonville, CA

Weather in January

January, the same as December, is a cool winter month in Boonville, California, with average temperature ranging between max 55.2°F (12.9°C) and min 38.8°F (3.8°C). In Boonville, the average high-temperature is essentially the same as in December - a still cool 55.2°F (12.9°C). Weather in January »

Weather in February

The last month of the winter, February, is a mild month in Boonville, California, with average temperature fluctuating between 56.3°F (13.5°C) and 37.9°F (3.3°C). In Boonville, the average high-temperature in February is essentially the same as in January - a mild 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 Boonville, California, with average temperature fluctuating between 57.6°F (14.2°C) and 38.7°F (3.7°C). In March, the average high-temperature is practically the same as in February - a still mild 57.6°F (14.2°C). Weather in March »

Weather in April

April in Boonville, California, is a comfortable spring month, with average temperature varying between 63.1°F (17.3°C) and 41°F (5°C). In Boonville, the average high-temperature in April marginally rises, from a mild 57.6°F (14.2°C) in March, to a comfortable 63.1°F (17.3°C). Weather in April »

Weather in May

May, the last month of the spring, in Boonville, is an agreeable month, with average temperature fluctuating between 69.1°F (20.6°C) and 45.1°F (7.3°C). In Boonville, the average high-temperature in May slightly increases, from an enjoyable 63.1°F (17.3°C) in April, to an agreeable 69.1°F (20.6°C). Weather in May »

Weather in June

June, the first month of the summer, in Boonville, is a moderately hot month, with temperature in the range of an average low of 50.5°F (10.3°C) and an average high of 78.1°F (25.6°C). In Boonville, the average high-temperature in June increases, from a pleasant 69.1°F (20.6°C) in May, to a warm 78.1°F (25.6°C). Weather in June »

Weather in July

July, like June, in Boonville, California, is a moderately hot summer month, with average temperature ranging between min 53.6°F (12°C) and max 85.3°F (29.6°C). The warmest month is July, with an average high-temperature of 85.3°F (29.6°C) and an average low-temperature of 53.6°F (12°C). In July, the average heat index is calculated to a tropical 89.1°F (31.7°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Boonville, California, with average temperature varying between 84.7°F (29.3°C) and 53.4°F (11.9°C). In Boonville, the average high-temperature is relatively the same as in July - a still warm 84.7°F (29.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Boonville, California, with average temperature fluctuating between 51.4°F (10.8°C) and 80.8°F (27.1°C). In Boonville, the average high-temperature is essentially the same as in August - a still warm 80.8°F (27.1°C). Weather in September »

Weather in October

October, the same as September, in Boonville, California, is an agreeable autumn month, with temperature in the range of an average low of 47.1°F (8.4°C) and an average high of 72°F (22.2°C). In October, the average high-temperature slightly decreases, from a moderately hot 80.8°F (27.1°C) in September, to a pleasant 72°F (22.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is another comfortable month in Boonville, California, with temperature in the range of an average low of 40.3°F (4.6°C) and an average high of 61°F (16.1°C). In Boonville, the average high-temperature decreases, from a pleasant 72°F (22.2°C) in October, to an enjoyable 61°F (16.1°C). Weather in November »

Weather in December

December, the first month of the winter, in Boonville, is still a cool month, with temperature in the range of an average high of 53.6°F (12°C) and an average low of 37.4°F (3°C). December is the coldest month, with an average high-temperature of 53.6°F (12°C) and an average low-temperature of 37.4°F (3°C). Weather in December »
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FAQ

How many days does it rain in Boonville?

Throughout the year, in Boonville, California, there are 83.3 rainfall days, and 17.72" (450mm) of precipitation is accumulated.

How much does it snow in Boonville?

Throughout the year, 0.04" (1mm) of snow is accumulated.

When it does not snow in Boonville?

In Boonville, California, snow does not fall in January, March through December.

What is the rainiest month in Boonville?

The wettest months are February and December, with an average 3.11" (79mm) of rainfall.

When does it snow in Boonville?

February is the only month when snow falls in Boonville, California.

When does it snow the most in Boonville?

February is the month with the most snowfall. Snow falls for 0.3 days and accumulates 0.04" (1mm) of snow.

When is the lowest UV index in Boonville?

February and November, with an average maximum UV index of 2, are months with the lowest UV index in Boonville, California.

What is the most humid month in Boonville?

The most humid month in Boonville is March, with an average relative humidity of 79%.

When are the longest days in Boonville?

The month with the longest days is June, with an average of 14.9h of daylight.

What are the months with the highest UV index in Boonville?

Months with the highest UV index in Boonville are June and July, with an average maximum UV index of 6.

What is the warmest month in Boonville?

The warmest month in Boonville is July, with an average high-temperature of 85.3°F (29.6°C) and an average low-temperature of 53.6°F (12°C).

What is the least humid month in Boonville?

July and September, with an average relative humidity of 58%, are the least humid months in Boonville, California.

What is the driest month in Boonville?

Months with the least rainfall in Boonville, California, are July and August Rain falls for 1.8 days and accumulates 0.08" (2mm) of rain.

What month has the most sunshine in Boonville?

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

What is the coldest month in Boonville?

With an average high-temperature of 53.6°F (12°C) and an average low-temperature of 37.4°F (3°C), December is the coldest month in Boonville.

What is the month with the shortest days in Boonville?

The month with the shortest days in Boonville is December, with an average of 9.5h of daylight.

What is the month with the least sunshine in Boonville?

December has the least sunshine of the year in Boonville, California, with an average of 5.3h of sunshine.

Average temperature
Boonville, CA

Average temperature - Boonville, CA

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (53.6°F).

The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (37.4°F).

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Average pressure
Boonville, CA

Average pressure - Boonville, CA

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

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Average wind speed
Boonville, CA

Average wind speed - Boonville, CA

The windiest months (with the highest average wind speed) are April, May and June (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).

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Average humidity
Boonville, CA

Average humidity - Boonville, CA

The month with the highest relative humidity is March (79%).
Months with the lowest relative humidity are July and September (58%).

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Average rainfall
Boonville, CA

Average rainfall - Boonville, CA

The wettest months (with the highest rainfall) are February and December (3.11").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days
Boonville, CA

Average rainfall days - Boonville, CA

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (1.3 days).

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Average snowfall
Boonville, CA

Average snowfall - Boonville, CA

The month with the highest snowfall is February (0.04").
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
Boonville, CA

Average snowfall days - Boonville, CA

The month with the highest number of snowfall days is February (0.3 days).
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
Boonville, CA

Average daylight / Average sunshine - Boonville, CA

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.3h).

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Average sunshine days
Boonville, CA

Average sunshine days - Boonville, CA

The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (15.9 days).

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Average visibility
Boonville, CA

Average visibility - Boonville, CA

Months with the highest visibility are February, April, May, June, July, August, September, October and November (6mi).
Months with the lowest visibility are January, March and December (5mi).

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