Corona
California, USA
Long-term weather forecast
Long-term weather forecast

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
January, the same as December, is another comfortable winter month in Corona, California, with average temperature varying between 48°F (8.9°C) and 66.2°F (19°C).

Temperature

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

Humidity

In January, the average relative humidity is 51%.

Rainfall

In Corona, California, during January, the rain falls for 5.3 days and regularly aggregates up to 1.38" (35mm) of precipitation. In Corona, during the entire year, the rain falls for 53.9 days and collects up to 8.86" (225mm) of precipitation.

Daylight

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

Sunshine

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

UV index

January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV radiation for average individuals.
Note: In January, the average maximum UV index of 4 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in January in Corona?

In Corona, in January, the average high-temperature is 66.2°F (19°C), and the average low-temperature is 48°F (8.9°C).

What is the average humidity in January in Corona?

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

How many days does it rain in January in Corona?

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

How many hours of daylight does Corona have in January?

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

How long on average sun shines in January in Corona?

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

What is the month with the lowest UV index in Corona?

Months with the lowest UV index in Corona, California, 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, California, is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to the UV radiation.
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).

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%).

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 lowest rainfall) is June (0.04").

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 lowest number of rainy days is June (1.3 days).

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 shortest days is December (Average daylight: 9.9h).

  • Average sunshine in January: 6.9h

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

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).