January weather forecast and climate
Corona, CA

Colorful beach homes along the Pacific Ocean facing the calm turquoise-blue ocean water in Corona del Mar, California
Colorful beach homes along the Pacific Ocean facing the calm turquoise-blue ocean water in Corona del Mar, California

Weather in January

January, like December, in Corona, California, is another enjoyable winter month, with average temperature fluctuating between 66.2°F (19°C) and 48°F (8.9°C).

Temperature

In Corona, the average high-temperature in January is almost the same as in December - a still comfortable 66.2°F (19°C). The average low-temperature,, is 48°F (8.9°C).

Humidity

In Corona, the average relative humidity in January is 51%.

Rainfall

In Corona, during January, the rain falls for 5.3 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, there are 53.9 rainfall days, and 8.86" (225mm) of precipitation is accumulated.

Daylight

The average length of the day in Corona is 10.2h.

Sunshine

The average sunshine in Corona, California, is 6.9h.

UV index

Months with the lowest UV index in Corona, California, are January, February, November and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 4 in January transform into the following instructions:
Take precautions - Protection against sunburn is recommended. 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 average humidity in January in Corona?

The average relative humidity in January in Corona is 51%.

How much does it rain in Corona in January?

In Corona, in January, during 5.3 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

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

In January, the average length of the day in Corona is 10.2h.

How many hours of sunshine does Corona have in January?

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

When is the lowest UV index in Corona?

Months with the lowest UV index in Corona are January, February, November and December, with an average maximum UV index of 4.

What is the UV index reading in January in Corona?

In January, the average daily maximum UV index in Corona is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.

Average temperature in January
Corona, CA

Average temperature in January - Corona, CA
  • Average high temperature in January: 66.2°F

The warmest month (with the highest average high temperature) is August (89.4°F).
The month with the lowest average high temperature is December (63.5°F).

  • Average low temperature in January: 48°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (46.9°F).

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Average pressure in January
Corona, CA

Average pressure in January - Corona, CA
  • Average pressure in January: 30.1"

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is June (29.87").

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Average wind speed in January
Corona, CA

Average wind speed in January - Corona, CA
  • Average wind speed in January: 5mph

The windiest months (with the highest average wind speed) are April and May (5.4mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).

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Average humidity in January
Corona, CA

Average humidity in January - Corona, CA
  • Average humidity in January: 51%

The month with the highest relative humidity is May (60%).
The month with the lowest relative humidity is November (48%).

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Average rainfall in January
Corona, CA

Average rainfall in January - Corona, CA
  • Average rainfall in January: 1.38"

The wettest month (with the highest rainfall) is December (1.89").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in January
Corona, CA

Average rainfall days in January - Corona, CA
  • Average rainfall days in January: 5.3 days

The month with the highest number of rainy days is March (8.2 days).
The month with the least rainy days is June (1.3 days).

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

Average daylight in January / Average sunshine in January - Corona, CA
  • Average daylight in January: 10.2h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in January: 6.9h

Months with the most sunshine are July and August (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
Corona, CA

Average sunshine days in January - Corona, CA
  • Average sunshine days in January: 24.6 days

The month with the most sunshine days is June (27.1 days).
The month with the least sunshine days is February (20.8 days).

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Average UV index in January
Corona, CA

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

Months with the highest UV index are July and August (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 4).

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Average cloud cover in January
Corona, CA

Average cloud cover in January - Corona, CA
  • Average cloud cover in January: 21

Months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in January
Corona, CA

Average visibility in January - Corona, 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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