January weather forecast and climate
Jenner, CA

Weather in January

January, like December, is another mild winter month in Jenner, California, with average temperature fluctuating between 42.3°F (5.7°C) and 57.7°F (14.3°C).

Temperature

In January, the average high-temperature is relatively the same as in December - a still moderate 57.7°F (14.3°C). In Jenner, the average low-temperature is 42.3°F (5.7°C).

Humidity

In Jenner, the average relative humidity is 75%.

Rainfall

In January, in Jenner, 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 9.9h.

Sunshine

The average sunshine is 5.6h.

UV index

Months with the lowest UV index in Jenner are January, February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to the UV radiation for the average person.
Note: In January, the average maximum UV index of 3 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in January in Jenner?

In January, in Jenner, California, the average high-temperature is 57.7°F (14.3°C), and the average low-temperature is 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 much does it rain in Jenner in January?

In Jenner, California, in January, during 8.1 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

How many hours of daylight does Jenner have in January?

The average length of the day in January in Jenner, California, is 9.9h.

How long on average sun shines in January in Jenner?

The average sunshine in January is 5.6h.

What is the month 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.

How high is the UV index in January in Jenner?

In Jenner, the average daily maximum UV index in January is 3. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.

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

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"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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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: 9.9h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in January: 5.6h

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is December (Average sunshine: 5.4h).

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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

Months with the highest UV index are June, July and August (UV index 6).
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

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

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