Monthly weather forecast and climate
Calistoga, CA

Vineyard and tree lines in a plantation in the Napa Valley in Calistoga, California
Vineyard and tree lines in a plantation in the Napa Valley in Calistoga, California

Weather in January

January is a moderate winter month in Calistoga, California, with average temperature ranging between min 40.1°F (4.5°C) and max 56.7°F (13.7°C). In Calistoga, the average high-temperature is practically the same as in December - a mild 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 Calistoga, California, with temperature in the range of an average low of 40.3°F (4.6°C) and an average high of 58.6°F (14.8°C). In February, the average high-temperature is essentially the same as in January - a still mild 58.6°F (14.8°C). Weather in February »

Weather in March

March, the first month of the spring, in Calistoga, is a comfortable month, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 61.2°F (16.2°C). In March, the average high-temperature is almost the same as in February - an enjoyable 61.2°F (16.2°C). Weather in March »

Weather in April

April, the same as March, is another enjoyable spring month in Calistoga, California, with average temperature ranging between max 67.6°F (19.8°C) and min 43.3°F (6.3°C). In April, the average high-temperature marginally rises, from a comfortable 61.2°F (16.2°C) in March, to a still enjoyable 67.6°F (19.8°C). Weather in April »

Weather in May

May, the last month of the spring, in Calistoga, is a moderately hot month, with average temperature fluctuating between 47.5°F (8.6°C) and 73.4°F (23°C). In May, the average high-temperature marginally rises, from an enjoyable 67.6°F (19.8°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 Calistoga, is also a moderately hot month, with average temperature varying between 53.1°F (11.7°C) and 83.1°F (28.4°C). In Calistoga, the average high-temperature rises, from 73.4°F (23°C) in May, to a still moderately hot 83.1°F (28.4°C). Weather in June »

Weather in July

July in Calistoga, California, is a hot summer month, with average temperature fluctuating between 87.6°F (30.9°C) and 55.4°F (13°C). In Calistoga, the average high-temperature is practically the same as in June - a hot 87.6°F (30.9°C). Weather in July »

Weather in August

The last month of the summer, August, is another hot month in Calistoga, California, with average temperature ranging between min 55°F (12.8°C) and max 87.8°F (31°C). With an average high-temperature of 87.8°F (31°C) and an average low-temperature of 55°F (12.8°C), August is the warmest month. The average heat index in August is calculated to a tropical 93°F (33.9°C). Weather in August »

Weather in September

September, the first month of the autumn, in Calistoga, is also a moderately hot month, with average temperature varying between 84.4°F (29.1°C) and 54.5°F (12.5°C). In September, the average high-temperature is practically the same as in August - a warm 84.4°F (29.1°C). Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Calistoga, California, with average temperature ranging between min 50.7°F (10.4°C) and max 74.7°F (23.7°C). In Calistoga, the average high-temperature decreases, from 84.4°F (29.1°C) in September, to a still moderately hot 74.7°F (23.7°C). Weather in October »

Weather in November

November, the last month of the autumn, in Calistoga, is also an enjoyable month, with average temperature varying between 44.2°F (6.8°C) and 63.5°F (17.5°C). In November, the average high-temperature decreases, from a warm 74.7°F (23.7°C) in October, to an enjoyable 63.5°F (17.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cool month in Calistoga, California, with average temperature fluctuating between 39.4°F (4.1°C) and 54.7°F (12.6°C). The coldest month is December, with an average high-temperature of 54.7°F (12.6°C) and an average low-temperature of 39.4°F (4.1°C). Weather in December »
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FAQ

How much does it rain in Calistoga?

In Calistoga, California, during the entire year, the rain falls for 77 days and collects up to 17.05" (433mm) of precipitation.

How much does it snow in Calistoga?

In Calistoga, during the entire year, snow aggregates up to 0.04" (1mm).

When it does not snow in Calistoga?

January, March through December are months without snowfall in Calistoga, California.

What is the wettest month in Calistoga?

February is the month with the most rainfall. Rain falls for 9.5 days and accumulates 3.78" (96mm) of precipitation.

When does it snow in Calistoga?

February is the only month when snow falls in Calistoga.

What is the snowiest month in Calistoga?

The month with the most snowfall in Calistoga, California, is February when snow falls for 0.1 days and typically aggregates up to 0.04" (1mm) of snow.

What is the most humid month in Calistoga?

March is the most humid month, with an average relative humidity of 75%.

When are the longest days in Calistoga?

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

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

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

What is the driest month in Calistoga?

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

What month has the most sunshine in Calistoga?

July has the most sunshine of the year in Calistoga, with an average of 12h of sunshine.

What is the warmest month in Calistoga?

With an average high-temperature of 87.8°F (31°C) and an average low-temperature of 55°F (12.8°C), August is the warmest month.

What is the least humid month in Calistoga?

With an average relative humidity of 53%, September is the least humid month in Calistoga, California.

What is the coldest month in Calistoga?

The coldest month in Calistoga is December, with an average high-temperature of 54.7°F (12.6°C) and an average low-temperature of 39.4°F (4.1°C).

What is the month with the shortest days in Calistoga?

With an average of 9.5h of daylight, December has the shortest days of the year in Calistoga, California.

What is the month with the least sunshine in Calistoga?

The month with the least sunshine in Calistoga is December, with an average of 5.5h of sunshine.

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

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

Average temperature
Calistoga, CA

Average temperature - Calistoga, CA

The warmest month (with the highest average high temperature) is August (87.8°F).
The month with the lowest average high temperature is December (54.7°F).

The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is December (39.4°F).

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Average pressure
Calistoga, CA

Average pressure - Calistoga, CA

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.91").

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Average wind speed
Calistoga, CA

Average wind speed - Calistoga, CA

The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).

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Average rainfall
Calistoga, CA

Average rainfall - Calistoga, CA

The wettest month (with the highest rainfall) is February (3.78").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days
Calistoga, CA

Average rainfall days - Calistoga, CA

The month with the highest number of rainy days is March (13.6 days).
The month with the least rainy days is August (0.8 days).

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Average snowfall
Calistoga, CA

Average snowfall - Calistoga, 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
Calistoga, CA

Average snowfall days - Calistoga, CA

Months with the highest number of snowfall days are February and March (0.1 days).
Months with the least snowfall days are January, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight / Average sunshine
Calistoga, CA

Average daylight / Average sunshine - Calistoga, CA

The month with the longest days is June (Average daylight: 14.8h).
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: 5.5h).

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Average sunshine days
Calistoga, CA

Average sunshine days - Calistoga, CA

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (15.8 days).

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Average visibility
Calistoga, CA

Average visibility - Calistoga, CA

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

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