January weather forecast
McKinleyville, CA

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Weather in January

January, like December, in McKinleyville, California, is another fresh winter month, with temperature in the range of an average high of 53.8°F (12.1°C) and an average low of 43.2°F (6.2°C).

Temperature

McKinleyville, California, registers an average high-temperature of a still cool 53.8°F (12.1°C) with the arrival of January, showing minor deviation from the preceding month. An average minimum temperature of 43.2°F (6.2°C) is recorded during the month of January.

Humidity

In McKinleyville, the average relative humidity in January is 78%.

Rainfall

In McKinleyville, California, during January, the rain falls for 14.1 days and regularly aggregates up to 5.31" (135mm) of precipitation. In McKinleyville, during the entire year, the rain falls for 114.9 days and collects up to 31.61" (803mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

The average length of the day in January is 9h and 38min.
On the first day of January in McKinleyville, sunrise is at 7:41 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:31 pm PST.

Sunshine

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

UV index

January through March, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 3 in January interprets into the following advice:
Heed the precautions - It is counselled to guard against solar damage. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

What is the temperature in January in McKinleyville?

In McKinleyville, in January, the average high-temperature is 53.8°F (12.1°C), and the average low-temperature is 43.2°F (6.2°C).

What is the average humidity in January in McKinleyville?

The average relative humidity in January in McKinleyville, California, is 78%.

How much does it rain in McKinleyville in January?

In McKinleyville, in January, it is raining for 14.1 days, with typically 5.31" (135mm) of accumulated precipitation.

When it does not snow in McKinleyville?

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

Does it snow in McKinleyville in January?

In McKinleyville, California, in January, it doesn't snow. In February, it regularly snows.

What is the average length of the day in January in McKinleyville?

In January, the average day length is 9h and 38min.

When are sunrise and sunset in January in McKinleyville?

In January, on the first day of the month, sunrise is at 7:41 am and sunset at 4:58 pm. On the last day of the month, in McKinleyville, California, sunrise is at 7:27 am and sunset at 5:31 pm PST.

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 in McKinleyville, California.

How many hours of sunshine does McKinleyville have in January?

In McKinleyville, California, the average sunshine duration in January is 5.1h.

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

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

What is the UV index reading in January in McKinleyville?

In January, the average daily maximum UV index in McKinleyville is 3. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
McKinleyville, CA

Average temperature in January - McKinleyville, CA
  • Average high temperature in January: 53.8°F

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).

  • Average low temperature in January: 43.2°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).

Average pressure in January
McKinleyville, CA

Average pressure in January - McKinleyville, CA
  • Average pressure in January: 30.13"Hg

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

Average wind speed in January
McKinleyville, CA

Average wind speed in January - McKinleyville, CA
  • Average wind speed in January: 7.2mph

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).

Average humidity in January
McKinleyville, CA

Average humidity in January - McKinleyville, CA
  • Average humidity in January: 78%

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

Average rainfall in January
McKinleyville, CA

Average rainfall in January - McKinleyville, CA
  • Average rainfall in January: 5.31"

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

Average rainfall days in January
McKinleyville, CA

Average rainfall days in January - McKinleyville, CA
  • Average rainfall days in January: 14.1 days

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

Average snowfall in January
McKinleyville, CA

Average snowfall in January - McKinleyville, CA
  • Average snowfall in January: 0"

The month with the highest snowfall is February (0.39").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in January
McKinleyville, CA

Average snowfall days in January - McKinleyville, CA
  • Average snowfall days in January: 0 days

The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in January /
Average sunshine in January
McKinleyville, CA

Average daylight in January / Average sunshine in January - McKinleyville, CA
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).

Average sunshine days in January
McKinleyville, CA

Average sunshine days in January - McKinleyville, CA
  • Average sunshine days in January: 15.7 days

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

Average UV index in January
McKinleyville, CA

Average UV index in January - McKinleyville, CA
  • Average UV index in January: 3

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

Average cloud cover in January
McKinleyville, CA

Average cloud cover in January - McKinleyville, CA
  • Average cloud cover in January: 45

The month with the most cloud cover is March (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 18).

Average visibility in January
McKinleyville, CA

Average visibility in January - McKinleyville, CA
  • Average visibility in January: 6mi

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

McKinleyville, California, USA

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