Climate and monthly weather forecast
Kelseyville, CA

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Weather in January

January, like December, in Kelseyville, California, is another fresh winter month, with an average temperature ranging between max 55.2°F (12.9°C) and min 38.8°F (3.8°C). January records an average high-temperature of a still cool 55.2°F (12.9°C), indicating a minor variation from the preceding month. Weather in January »

Weather in February

February, the last month of the winter in Kelseyville, is a mild month, with an average temperature varying between 38.3°F (3.5°C) and 56.5°F (13.6°C). Kelseyville's average high-temperature marks a mild 56.5°F (13.6°C) with the advent of February, closely mirroring that of the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Kelseyville, is still a refreshing month, with temperature in the range of an average high of 58.6°F (14.8°C) and an average low of 38.8°F (3.8°C). As Kelseyville welcomes March, the average high-temperature stabilizes at a still moderate 58.6°F (14.8°C), showing little deviation from February's 56.5°F (13.6°C). Weather in March »

Weather in April

April in Kelseyville, California, is a refreshing spring month, with an average temperature varying between 65.7°F (18.7°C) and 42.4°F (5.8°C). In April, the meteorological conditions subtly change with the average high-temperature edging from a mild 58.6°F (14.8°C) in March to an enjoyable 65.7°F (18.7°C). Weather in April »

Weather in May

May, the last month of the spring in Kelseyville, is a pleasant month, with temperature in the range of an average high of 72.7°F (22.6°C) and an average low of 46.8°F (8.2°C). The shift from April to May introduces a subtle increase in the average high-temperature, moving from a comfortable 65.7°F (18.7°C) to an agreeable 72.7°F (22.6°C). Weather in May »

Weather in June

June, the first month of the summer in Kelseyville, is a warm month, with an average temperature ranging between min 53.2°F (11.8°C) and max 82.9°F (28.3°C). June's onset is marked by a temperature increase, moving from a pleasant 72.7°F (22.6°C) in May to a warm 82.9°F (28.3°C). Weather in June »

Weather in July

July is a tropical summer month in Kelseyville, California, with temperature in the range of an average high of 90.1°F (32.3°C) and an average low of 56.7°F (13.7°C). The average temperatures reach their apex in July, averaging 90.1°F (32.3°C) at the high end and 56.7°F (13.7°C) at the low end. July's heat index is evaluated at a tropical 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is another hot month in Kelseyville, California, with an average temperature varying between 56.7°F (13.7°C) and 89.8°F (32.1°C). The average high-temperature during August is a still hot 89.8°F (32.1°C), almost matching the conditions of the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Kelseyville, is still a warm month, with temperature in the range of an average low of 54°F (12.2°C) and an average high of 84.9°F (29.4°C). September's beginning signals an average high-temperature of a warm 84.9°F (29.4°C), barely different from August's 89.8°F (32.1°C). Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Kelseyville, California, with an average temperature varying between 48.6°F (9.2°C) and 73.9°F (23.3°C). In Kelseyville, the average high-temperature in October decreases from 84.9°F (29.4°C) in September to a still moderately hot 73.9°F (23.3°C). Weather in October »

Weather in November

November, the last month of the autumn in Kelseyville, is another refreshing month, with an average temperature fluctuating between 41.4°F (5.2°C) and 61.7°F (16.5°C). November brings a minor decrease, with the average high-temperature reducing from a moderately hot 73.9°F (23.3°C) in October to a comfortable 61.7°F (16.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cool month in Kelseyville, California, with temperature in the range of an average high of 52.9°F (11.6°C) and an average low of 37.2°F (2.9°C). With average high and low temperatures of 52.9°F (11.6°C) and 37.2°F (2.9°C) respectively, December is Kelseyville's coldest month. Weather in December »

Frequently asked questions

How many days does it rain?

In Kelseyville, California, during the entire year, the rain falls for 88.1 days and collects up to 20.28" (515mm) of precipitation.

When does it snow?

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

When does it snow the most?

The months with the most snowfall are January and February, with an average 0.47" (12mm) of accumulated snow.

How many days does it snow?

In Kelseyville, during the entire year, snow falls for 1.8 days and aggregates up to 1.26" (32mm) of snow.

What is the rainiest month?

The month with the most rainfall is February, when the rain falls for 9.9 days and typically aggregates up to 3.94" (100mm) of precipitation.

What is the most humid month?

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

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 it does not snow?

In Kelseyville, snow does not fall in April through October.

When are the longest days?

June has the longest days of the year, with an average of 14h and 54min of daylight.

What time of the year is the hottest in Kelseyville?

In Kelseyville, July is the month with the highest recorded average temperatures, measuring a high of 90.1°F (32.3°C) and a low of 56.7°F (13.7°C).

What is the least humid month?

With an average relative humidity of 48%, July is the least humid month.

What is the driest month?

July and August are months with the least rain when the rain falls for 1.1 days and typically aggregates up to 0.04" (1mm) of rain.

What month has the most sunshine?

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

When is the highest UV index?

The month with the highest UV index is July, with an average maximum UV index of 7.

When is the lowest UV index in Kelseyville?

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

What part of the year is the coldest?

Kelseyville's December weather, marked by an average high temperature of 52.9°F (11.6°C) and an average low temperature of 37.2°F (2.9°C), is the coldest in the year.

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?

With an average of 5.3h of sunshine, December has the least sunshine of the year.

Average temperature
Kelseyville, CA

Average temperature - Kelseyville, CA

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (52.9°F).

The months with the highest average low temperature are July and August (56.7°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).

Average pressure
Kelseyville, CA

Average pressure - Kelseyville, CA

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

Average wind speed
Kelseyville, CA

Average wind speed - Kelseyville, CA

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

Average humidity
Kelseyville, CA

Average humidity - Kelseyville, CA

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (48%).

Average rainfall
Kelseyville, CA

Average rainfall - Kelseyville, CA

The wettest month (with the highest rainfall) is February (3.94").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days
Kelseyville, CA

Average rainfall days - Kelseyville, CA

The month with the highest number of rainy days is March (15.2 days).
The month with the least rainy days is July (1.1 days).

Average snowfall
Kelseyville, CA

Average snowfall - Kelseyville, CA

The months with the highest snowfall are January and February (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days
Kelseyville, CA

Average snowfall days - Kelseyville, CA

The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Kelseyville, CA

Average daylight / Average sunshine - Kelseyville, CA

The month with the longest days is June (Average daylight: 14h and 54min).
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 18min).

Average sunshine days
Kelseyville, CA

Average sunshine days - Kelseyville, CA

The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is March (14.3 days).

Average visibility
Kelseyville, CA

Average visibility - Kelseyville, CA

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

Kelseyville, California, USA

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