Climate and monthly weather forecast
Geyserville, CA

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Weather in January

January in Geyserville, California, is a mild winter month, with temperature in the range of an average low of 41.2°F (5.1°C) and an average high of 57°F (13.9°C). January's average high-temperature is a mild 57°F (13.9°C), maintaining a close comparison with December's 55°F (12.8°C). Weather in January »

Weather in February

February, the last month of the winter in Geyserville, is also a moderate month, with an average temperature ranging between min 40.6°F (4.8°C) and max 58.6°F (14.8°C). The onset of February marks an average high-temperature of a still refreshing 58.6°F (14.8°C), hardly differing from January's 57°F (13.9°C). Weather in February »

Weather in March

March, the first month of the spring in Geyserville, is still a mild month, with an average temperature varying between 41.2°F (5.1°C) and 60.4°F (15.8°C). The arrival of March marks a slight shift to an average high-temperature of a still mild 60.4°F (15.8°C) from February's 58.6°F (14.8°C). Weather in March »

Weather in April

April is a refreshing spring month in Geyserville, California, with an average temperature varying between 66°F (18.9°C) and 43.5°F (6.4°C). As Geyserville welcomes April, the average high-temperature displays a subtle shift, adjusting from 60.4°F (15.8°C) in March to a still refreshing 66°F (18.9°C). Weather in April »

Weather in May

May, the last month of the spring in Geyserville, is a pleasant month, with an average temperature fluctuating between 47.3°F (8.5°C) and 71.4°F (21.9°C). The shift into May is accompanied by a modest temperature increase, with the average high-temperature edging up from an enjoyable 66°F (18.9°C) in April to an agreeable 71.4°F (21.9°C). Weather in May »

Weather in June

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

Weather in July

July, the same as June, is a moderately hot summer month in Geyserville, California, with an average temperature fluctuating between 84.7°F (29.3°C) and 54.7°F (12.6°C). Geyserville's July weather, with an average high temperature of 84.7°F (29.3°C) and an average low temperature of 54.7°F (12.6°C), tends to be the warmest of the year. For most parts of July, the heat index is computed to be a hot 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Geyserville, California, with an average temperature varying between 55°F (12.8°C) and 84.6°F (29.2°C). Geyserville, California, records an average high-temperature of a still warm 84.6°F (29.2°C) in August, maintaining a close correlation with July's 84.7°F (29.3°C). Weather in August »

Weather in September

September, the first month of the autumn in Geyserville, is still a warm month, with an average temperature ranging between min 53.6°F (12°C) and max 82.6°F (28.1°C). As Geyserville welcomes September, the average high-temperature is noted at a still warm 82.6°F (28.1°C), closely aligning with the preceding month. Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Geyserville, California, with an average temperature fluctuating between 50.4°F (10.2°C) and 73.8°F (23.2°C). As September makes way for October, Geyserville's average high-temperature eases from a moderately hot 82.6°F (28.1°C) to a still warm 73.8°F (23.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is also an enjoyable month in Geyserville, California, with an average temperature ranging between min 44.2°F (6.8°C) and max 63.5°F (17.5°C). Geyserville experiences a temperature shift at the start of November, with average high-temperatures adjusting from a moderately hot 73.8°F (23.2°C) in October to a refreshing 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 Geyserville, California, with an average temperature ranging between min 40.1°F (4.5°C) and max 55°F (12.8°C). The month of December, characterized by an average high of 55°F (12.8°C) and a low of 40.1°F (4.5°C), is recognized as the coldest. Weather in December »

Frequently asked questions

How many days does it rain?

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

When it does not snow?

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

How much does it snow?

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

What is the month with the lowest UV index?

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

What is the rainiest month?

February is the month with the most rainfall. Rain falls for 9.5 days and accumulates 4.33" (110mm) of precipitation.

When does it snow in Geyserville?

The only month with snowfall is February.

What is the snowiest month?

The month with the most snowfall 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?

March is the most humid month, with an average relative humidity of 76%.

When is Daylight Saving Time (DST)?

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?

The month with the longest days is June, with an average of 14h and 48min of daylight.

When is the highest UV index?

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

What are the warmest months?

July temperatures tend to peak at an average high of 84.7°F (29.3°C) and dip to a low of 54.7°F (12.6°C).

What is the driest month?

The months with the least rainfall are July and August Rain falls for 1 days and accumulates 0.04" (1mm) of rain.

What month has the most sunshine in Geyserville?

The month with the most sunshine in Geyserville is July, with an average of 12h of sunshine.

What is the least humid month in Geyserville?

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

What is the coldest month?

In Geyserville, December is the month with the lowest recorded average temperatures, measuring a high of 55°F (12.8°C) and a low of 40.1°F (4.5°C).

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

What is the month with the least sunshine?

December has the least sunshine of the year, 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).

Average pressure
Geyserville, CA

Average pressure - Geyserville, 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).

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).

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%).

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").

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).

Average snowfall
Geyserville, CA

Average snowfall - Geyserville, CA

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days
Geyserville, CA

Average snowfall days - Geyserville, CA

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

Average daylight / Average sunshine
Geyserville, CA

Average daylight / Average sunshine - Geyserville, 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 36min).

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).

Average UV index
Geyserville, CA

Average UV index - Geyserville, CA

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

Average visibility
Geyserville, CA

Average visibility - Geyserville, 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).

Geyserville, California, USA

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