January weather forecast and climate
Julian, CA

Weather in January

January, like December, in Julian, California, is another enjoyable winter month, with temperature in the range of an average low of 45°F (7.2°C) and an average high of 63.9°F (17.7°C).

Temperature

In Julian, the average high-temperature is practically the same as in December - a still comfortable 63.9°F (17.7°C). The average low-temperature, in January, is 45°F (7.2°C).

Humidity

In January, the average relative humidity is 53%.

Rainfall

In Julian, during January, the rain falls for 5.1 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, there are 62 rainfall days, and 6.38" (162mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall in Julian. Throughout January, in Julian, 4" (101.6mm) of snow is accumulated. Throughout the year, 22" (558.7mm) of snow is accumulated.

Daylight

The average length of the day in Julian is 10.3h.

Sunshine

In Julian, the average sunshine is 6.9h.

UV index

In January, the average daily maximum UV index in Julian, California, is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in January in Julian?

The average high-temperature, in January, is 63.9°F (17.7°C), while the average low-temperature is 45°F (7.2°C).

What is the average humidity in January in Julian?

In January, the average relative humidity in Julian, California, is 53%.

How much does it rain in Julian in January?

In Julian, during January, the rain falls for 5.1 days and regularly aggregates up to 0.75" (19mm) of precipitation.

How much does it snow in Julian in January?

During January, Julian regularly aggregates up to 4" (101.6mm) of snow.

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

In Julian, the average length of the day in January is 10.3h.

How many hours of sunshine does Julian have in January?

In Julian, the average sunshine in January is 6.9h.

What is the UV index intensity in January in Julian?

In January, the average daily maximum UV index in Julian is 4. A UV Index reading of 3 to 5 represents a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in January
Julian, CA

Average temperature in January - Julian, CA
  • Average high temperature in January: 63.9°F

The warmest month (with the highest average high temperature) is August (87.3°F).
The month with the lowest average high temperature is December (61.3°F).

  • Average low temperature in January: 45°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (44.2°F).

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Average pressure in January
Julian, CA

Average pressure in January - Julian, CA
  • Average pressure in January: 30.09"

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in January
Julian, CA

Average wind speed in January - Julian, CA
  • Average wind speed in January: 5.1mph

The windiest month (with the highest average wind speed) is May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).

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Average humidity in January
Julian, CA

Average humidity in January - Julian, CA
  • Average humidity in January: 53%

The month with the highest relative humidity is May (62%).
The month with the lowest relative humidity is November (51%).

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Average rainfall in January
Julian, CA

Average rainfall in January - Julian, CA
  • Average rainfall in January: 0.75"

The wettest month (with the highest rainfall) is February (0.94").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in January
Julian, CA

Average rainfall days in January - Julian, CA
  • Average rainfall days in January: 5.1 days

The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (1.5 days).

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Average snowfall in January
Julian, CA

Average snowfall in January - Julian, CA
  • Average snowfall in January: 4"

The month with the highest snowfall is March (6.7").
Months with the least snowfall are June, July, August, September and October (0").

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

Average daylight in January / Average sunshine in January - Julian, CA
  • Average daylight in January: 10.3h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in January: 6.9h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days in January
Julian, CA

Average sunshine days in January - Julian, CA
  • Average sunshine days in January: 24.3 days

The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is July (19.4 days).

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Average UV index in January
Julian, CA

Average UV index in January - Julian, CA
  • Average UV index in January: 4

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are November and December (UV index 3).

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Average cloud cover in January
Julian, CA

Average cloud cover in January - Julian, CA
  • Average cloud cover in January: 20

Months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in January
Julian, CA

Average visibility in January - Julian, 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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