January weather forecast
Jenner, CA

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Weather in January

January, the same as December, in Jenner, California, is a moderate winter month, with temperature in the range of an average low of 42.3°F (5.7°C) and an average high of 57.7°F (14.3°C).

Temperature

Jenner's average high-temperature in January is a still mild 57.7°F (14.3°C), marking an insignificant difference from the 56.3°F (13.5°C) of December. Throughout January, Jenner records an average temperature of 42.3°F (5.7°C) at night.

Humidity

In January, the average relative humidity in Jenner is 75%.

Rainfall

In January, the rain falls for 8.1 days. Throughout January, 1.97" (50mm) of precipitation is accumulated. In Jenner, during the entire year, the rain falls for 60.1 days and collects up to 12.87" (327mm) of precipitation.

Daylight

The average length of the day in January is 9h and 51min.
On the first day of January in Jenner, sunrise is at 7:29 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:33 pm PST.

Sunshine

In January, the average sunshine is 5.6h.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index, 3 in January, converts into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

What are January temperatures in Jenner?

During January, Jenner experiences an average high-temperature of 57.7°F (14.3°C) and a low-temperature of 42.3°F (5.7°C).

What is the average humidity in January in Jenner?

In January, the average relative humidity in Jenner, California, is 75%.

How many days does it rain in January in Jenner?

In Jenner, California, during January, the rain falls for 8.1 days and regularly aggregates up to 1.97" (50mm) of precipitation.

How many hours of daylight does Jenner have in January?

The average day length in January in Jenner, California, is 9h and 51min.

When is the sunrise / sunset in January in Jenner?

In January, on the first day of the month, sunrise is at 7:29 am and sunset at 5:02 pm. On the last day of the month, in Jenner, California, sunrise is at 7:18 am and sunset at 5:33 pm PST.

How long on average sun shines in January in Jenner?

In January, the average sunshine duration is 5.6h.

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

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

How high is the UV index in January in Jenner?

In Jenner, California, the average daily maximum UV index in January is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Jenner, CA

Average temperature in January - Jenner, CA
  • Average high temperature in January: 57.7°F

The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in January: 42.3°F

The months with the highest average low temperature are August and September (53.4°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).

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Average pressure in January
Jenner, CA

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

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).

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Average wind speed in January
Jenner, CA

Average wind speed in January - Jenner, CA
  • Average wind speed in January: 5.3mph

The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest month (with the lowest average wind speed) is November (5mph).

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Average humidity in January
Jenner, CA

Average humidity in January - Jenner, CA
  • Average humidity in January: 75%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (62%).

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Average rainfall in January
Jenner, CA

Average rainfall in January - Jenner, CA
  • Average rainfall in January: 1.97"

The wettest month (with the highest rainfall) is February (3.27").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in January
Jenner, CA

Average rainfall days in January - Jenner, CA
  • Average rainfall days in January: 8.1 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).

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

Average daylight in January / Average sunshine in January - Jenner, CA
  • Average daylight in January: 9h and 5min

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).

  • Average sunshine in January: 5h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in January
Jenner, CA

Average sunshine days in January - Jenner, CA
  • Average sunshine days in January: 22 days

The month with the most sunshine days is July (28.9 days).
The month with the least sunshine days is February (19.9 days).

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Average UV index in January
Jenner, CA

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

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).

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Average cloud cover in January
Jenner, CA

Average cloud cover in January - Jenner, CA
  • Average cloud cover in January: 38

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 11).

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Average visibility in January
Jenner, CA

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

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).

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Jenner, California, USA

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