Monthly weather forecast and climate
Geyserville, CA

Weather in January

January is a moderate winter month in Geyserville, California, with temperature in the range of an average high of 57°F (13.9°C) and an average low of 41.2°F (5.1°C). In January, the average high-temperature is almost the same as in December - a moderate 57°F (13.9°C). Weather in January »

Weather in February

The last month of the winter, February, is also a moderate month in Geyserville, California, with average temperature ranging between max 58.6°F (14.8°C) and min 40.6°F (4.8°C). In February, the average high-temperature is almost the same as in January - a still moderate 58.6°F (14.8°C). Weather in February »

Weather in March

March, the first month of the spring, in Geyserville, is also a moderate month, with average temperature ranging between max 60.4°F (15.8°C) and min 41.2°F (5.1°C). In Geyserville, the average high-temperature is practically the same as in February - a still mild 60.4°F (15.8°C). Weather in March »

Weather in April

April is an enjoyable spring month in Geyserville, California, with average temperature varying between 66°F (18.9°C) and 43.5°F (6.4°C). In April, the average high-temperature marginally rises, from a mild 60.4°F (15.8°C) in March, to an enjoyable 66°F (18.9°C). Weather in April »

Weather in May

May, the last month of the spring, in Geyserville, is an agreeable month, with average temperature fluctuating between 47.3°F (8.5°C) and 71.4°F (21.9°C). In May, the average high-temperature marginally rises, from a comfortable 66°F (18.9°C) in April, to a pleasant 71.4°F (21.9°C). Weather in May »

Weather in June

June, the first month of the summer, in Geyserville, is a moderately hot month, with average temperature fluctuating between 79.9°F (26.6°C) and 52.9°F (11.6°C). In June, the average high-temperature marginally rises, from a pleasant 71.4°F (21.9°C) in May, to a warm 79.9°F (26.6°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Geyserville, California, with average temperature varying between 54.7°F (12.6°C) and 84.7°F (29.3°C). July is the warmest month, with an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 54.7°F (12.6°C). The average heat index is calculated to a tropical 88.2°F (31.2°C). Weather in July »

Weather in August

August, the last month of the summer, in Geyserville, is also a moderately hot month, with average temperature varying between 84.6°F (29.2°C) and 55°F (12.8°C). In August, the average high-temperature is almost the same as in July - a still warm 84.6°F (29.2°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Geyserville, California, with temperature in the range of an average low of 53.6°F (12°C) and an average high of 82.6°F (28.1°C). In Geyserville, California, the average high-temperature is almost the same as in August - a still warm 82.6°F (28.1°C). Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Geyserville, California, with average temperature fluctuating between 50.4°F (10.2°C) and 73.8°F (23.2°C). In Geyserville, the average high-temperature marginally drops, from a warm 82.6°F (28.1°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 Geyserville, is another comfortable month, with temperature in the range of an average high of 63.5°F (17.5°C) and an average low of 44.2°F (6.8°C). In November, the average high-temperature drops, from a moderately hot 73.8°F (23.2°C) in October, to a comfortable 63.5°F (17.5°C). Weather in November »

Weather in December

The first month of the winter, December, is also a fresh month in Geyserville, California, with average temperature varying between 55°F (12.8°C) and 40.1°F (4.5°C). The coldest month is December, with an average high-temperature of 55°F (12.8°C) and an average low-temperature of 40.1°F (4.5°C). Weather in December »
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FAQ

How many days does it rain in Geyserville?

Throughout the year, in Geyserville, California, there are 81.2 rainfall days, and 19.84" (504mm) of precipitation is accumulated.

How much does it snow in Geyserville?

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

When it does not snow in Geyserville?

January, March through December are months without snowfall.

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

Months with the lowest UV index in Geyserville are January, February, November and December, with an average maximum UV index of 3.

What is the rainiest month in Geyserville?

The month with the most rainfall is February when the rain falls for 9.5 days and typically aggregates up to 4.33" (110mm) of precipitation.

When does it snow in Geyserville?

The only month with snowfall in Geyserville, California, is February.

What is the snowiest month in Geyserville?

February is the month with the most snowfall in Geyserville, California. Snow falls for 0.1 days and accumulates 0.04" (1mm) of snow.

What is the most humid month in Geyserville?

The most humid month in Geyserville is March, with an average relative humidity of 76%.

When are the longest days in Geyserville?

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

When is the highest UV index in Geyserville?

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

What is the warmest month in Geyserville?

The warmest month is July, with an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 54.7°F (12.6°C).

What is the driest month in Geyserville?

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

What month has the most sunshine in Geyserville?

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

What is the least humid month in Geyserville?

September is the least humid month, with an average relative humidity of 57%.

What is the coldest month in Geyserville?

December is the coldest month in Geyserville, with an average high-temperature of 55°F (12.8°C) and an average low-temperature of 40.1°F (4.5°C).

What is the month with the shortest days in Geyserville?

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

What is the month with the least sunshine in Geyserville?

The month with the least sunshine in Geyserville is December, with an average of 5.6h of sunshine.

Average temperature
Geyserville, CA

Average temperature - Geyserville, CA

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (55°F).

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).

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Average pressure
Geyserville, CA

Average pressure - Geyserville, 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
Geyserville, CA

Average wind speed - Geyserville, CA

The windiest months (with the highest average wind speed) are April and May (6.2mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).

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Average humidity
Geyserville, CA

Average humidity - Geyserville, CA

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (57%).

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Average rainfall
Geyserville, CA

Average rainfall - Geyserville, CA

The wettest month (with the highest rainfall) is February (4.33").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days
Geyserville, CA

Average rainfall days - Geyserville, CA

The month with the highest number of rainy days is March (14.2 days).
The month with the least rainy days is August (0.8 days).

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Average snowfall
Geyserville, CA

Average snowfall - Geyserville, 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
Geyserville, CA

Average snowfall days - Geyserville, CA

The month with the highest number of snowfall days is February (0.1 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
Geyserville, CA

Average daylight / Average sunshine - Geyserville, 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: 5.6h).

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Average sunshine days
Geyserville, CA

Average sunshine days - Geyserville, CA

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (14.8 days).

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Average UV index
Geyserville, CA

Average UV index - Geyserville, CA

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

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Average visibility
Geyserville, CA

Average visibility - Geyserville, 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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