Monthly weather forecast and climate
McKinleyville, CA

Weather in January

January, the same as December, is a cool winter month in McKinleyville, California, with average temperature varying between 53.8°F (12.1°C) and 43.2°F (6.2°C). In McKinleyville, the average high-temperature in January is essentially the same as in December - a still cool 53.8°F (12.1°C). Weather in January »

Weather in February

February, the last month of the winter, in McKinleyville, is another cool month, with average temperature ranging between max 53.1°F (11.7°C) and min 41.7°F (5.4°C). In McKinleyville, the average high-temperature in February is almost the same as in January - a still fresh 53.1°F (11.7°C). Weather in February »

Weather in March

The first month of the spring, March, is also a fresh month in McKinleyville, California, with temperature in the range of an average low of 42.3°F (5.7°C) and an average high of 53.2°F (11.8°C). In McKinleyville, the average high-temperature in March is almost the same as in February - a still cool 53.2°F (11.8°C). Weather in March »

Weather in April

April is a mild spring month in McKinleyville, California, with average temperature varying between 43.5°F (6.4°C) and 56.1°F (13.4°C). In McKinleyville, the average high-temperature in April is practically the same as in March - a moderate 56.1°F (13.4°C). Weather in April »

Weather in May

The last month of the spring, May, is another mild month in McKinleyville, California, with average temperature ranging between max 60.1°F (15.6°C) and min 45.9°F (7.7°C). In McKinleyville, the average high-temperature in May is relatively the same as in April - a still moderate 60.1°F (15.6°C). Weather in May »

Weather in June

The first month of the summer, June, is an enjoyable month in McKinleyville, California, with average temperature varying between 64.4°F (18°C) and 48.4°F (9.1°C). In McKinleyville, the average high-temperature is almost the same as in May - an enjoyable 64.4°F (18°C). Weather in June »

Weather in July

July in McKinleyville, California, is an agreeable summer month, with average temperature ranging between max 68.5°F (20.3°C) and min 51.1°F (10.6°C). In July, the average high-temperature is practically the same as in June - an agreeable 68.5°F (20.3°C). Weather in July »

Weather in August

August, the last month of the summer, in McKinleyville, is also an agreeable month, with average temperature fluctuating between 68.9°F (20.5°C) and 51.4°F (10.8°C). The warmest month is August, with an average high-temperature of 68.9°F (20.5°C) and an average low-temperature of 51.4°F (10.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in McKinleyville, California, with temperature in the range of an average high of 68°F (20°C) and an average low of 51.1°F (10.6°C). In McKinleyville, the average high-temperature in September is relatively the same as in August - a still pleasant 68°F (20°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in McKinleyville, California, with average temperature ranging between min 48.9°F (9.4°C) and max 62.6°F (17°C). In McKinleyville, the average high-temperature in October marginally drops, from an agreeable 68°F (20°C) in September, to a comfortable 62.6°F (17°C). Weather in October »

Weather in November

November, the last month of the autumn, in McKinleyville, is another mild month, with average temperature ranging between min 45.3°F (7.4°C) and max 56.7°F (13.7°C). In November, the average high-temperature slightly decreases, from a comfortable 62.6°F (17°C) in October, to a mild 56.7°F (13.7°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cool month in McKinleyville, California, with average temperature varying between 52.7°F (11.5°C) and 42.4°F (5.8°C). December is the coldest month, with an average high-temperature of 52.7°F (11.5°C) and an average low-temperature of 42.4°F (5.8°C). Weather in December »
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FAQ

How many days does it rain in McKinleyville?

In McKinleyville, during the entire year, the rain falls for 114.9 days and collects up to 31.61" (803mm) of precipitation.

How much does it snow in McKinleyville?

Throughout the year, in McKinleyville, California, 0.39" (10mm) of snow is accumulated.

When it does not snow in McKinleyville?

January, March through December are months without snowfall in McKinleyville.

What is the month with the least sunshine in McKinleyville?

January and December, with an average of 5.1h of sunshine, are months with the least sunshine.

When is the lowest UV index in McKinleyville?

Months with the lowest UV index in McKinleyville, California, are January through March, November and December, with an average maximum UV index of 3.

When does it snow in McKinleyville?

The only month with snowfall is February.

What is the snowiest month in McKinleyville?

February is the month with the most snowfall in McKinleyville. Snow falls for 0.3 days and accumulates 0.39" (10mm) of snow.

What is the most humid month in McKinleyville?

The most humid month in McKinleyville is March, with an average relative humidity of 82%.

When are the longest days in McKinleyville?

With an average of 15.1h of daylight, June has the longest days of the year in McKinleyville.

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

Months with the highest UV index in McKinleyville are June through August, with an average maximum UV index of 5.

What is the driest month in McKinleyville?

The month with the least rainfall in McKinleyville, California, is July when the rain falls for 2.2 days and typically collects 0.08" (2mm) of precipitation.

What month has the most sunshine in McKinleyville?

The month with the most sunshine in McKinleyville is July, with an average of 11.5h of sunshine.

What is the warmest month in McKinleyville?

August is the warmest month in McKinleyville, California, with an average high-temperature of 68.9°F (20.5°C) and an average low-temperature of 51.4°F (10.8°C).

What is the least humid month in McKinleyville?

Months with the lowest humidity in McKinleyville, California, are September and October, with an average relative humidity of 76%.

What is the coldest month in McKinleyville?

December is the coldest month in McKinleyville, with an average high-temperature of 52.7°F (11.5°C) and an average low-temperature of 42.4°F (5.8°C).

What is the rainiest month in McKinleyville?

The month with the most rainfall in McKinleyville is December when the rain falls for 15.6 days and typically aggregates up to 5.87" (149mm) of precipitation.

What is the month with the shortest days in McKinleyville?

With an average of 9.3h of daylight, December has the shortest days of the year.

Average temperature
McKinleyville, CA

Average temperature - McKinleyville, CA

The warmest month (with the highest average high temperature) is August (68.9°F).
The month with the lowest average high temperature is December (52.7°F).

The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is February (41.7°F).

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Average pressure
McKinleyville, CA

Average pressure - McKinleyville, CA

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is August (29.97").

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Average wind speed
McKinleyville, CA

Average wind speed - McKinleyville, CA

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity
McKinleyville, CA

Average humidity - McKinleyville, CA

The month with the highest relative humidity is March (82%).
Months with the lowest relative humidity are September and October (76%).

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Average rainfall
McKinleyville, CA

Average rainfall - McKinleyville, CA

The wettest month (with the highest rainfall) is December (5.87").
The driest month (with the least rainfall) is July (0.08").

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Average rainfall days
McKinleyville, CA

Average rainfall days - McKinleyville, CA

The month with the highest number of rainy days is March (16.8 days).
Months with the least rainy days are July and August (2.2 days).

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Average snowfall
McKinleyville, CA

Average snowfall - McKinleyville, CA

The month with the highest snowfall is February (0.39").
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
McKinleyville, CA

Average snowfall days - McKinleyville, 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 and November (0 days).

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Average daylight / Average sunshine
McKinleyville, CA

Average daylight / Average sunshine - McKinleyville, CA

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

The month with the most sunshine is July (Average sunshine: 11.5h).
Months with the least sunshine are January and December (Average sunshine: 5.1).

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Average sunshine days
McKinleyville, CA

Average sunshine days - McKinleyville, CA

Months with the most sunshine days are July and August (28 days).
The month with the least sunshine days is March (12.5 days).

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Average UV index
McKinleyville, CA

Average UV index - McKinleyville, CA

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, March, November and December (UV index 3).

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Average visibility
McKinleyville, CA

Average visibility - McKinleyville, CA

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

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