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

January weather forecast and climate
Sacramento, CA

The State Capitol Building in Sacramento, California, under the perfect blue sky
The State Capitol Building in Sacramento, California, under the perfect blue sky
January, the same as December, is a cool winter month in Sacramento, California, with temperature in the range of an average high of 53.8°F (12.1°C) and an average low of 38.8°F (3.8°C).

Temperature

With an average high-temperature of 53.8°F (12.1°C) and an average low-temperature of 38.8°F (3.8°C), January is the coldest month.

Humidity

The most humid month in Sacramento is January, with an average relative humidity of 83.3%.

Rainfall

The month with the most rainfall in Sacramento is January when the rain falls for 10.3 days and typically aggregates up to 3.6" (92.5mm) of precipitation.

Daylight

In Sacramento, the average length of the day is 9.8h.

Sunshine

The average sunshine in Sacramento is 4.7h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Sacramento. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 2 transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 coldest month in Sacramento?

January is the coldest month, with an average high-temperature of 53.8°F (12.1°C) and an average low-temperature of 38.8°F (3.8°C).

What is the temperature in January in Sacramento?

In January, in Sacramento, the average high-temperature is 53.8°F (12.1°C), and the average low-temperature is 38.8°F (3.8°C).

What is the most humid month in Sacramento?

The most humid month in Sacramento is January, with an average relative humidity of 83.3%.

What is the average humidity in January in Sacramento?

In January, the average relative humidity in Sacramento is 83.3%.

How many days does it rain in January in Sacramento?

In Sacramento, California, in January, it is raining for 10.3 days, with typically 3.6" (92.5mm) of accumulated precipitation.

What is the wettest month in Sacramento?

January is the month with the most rainfall in Sacramento. Rain falls for 10.3 days and accumulates 3.6" (92.5mm) of precipitation.

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

The average length of the day in January in Sacramento is 9.8h.

How many hours of sunshine does Sacramento have in January?

In Sacramento, California, the average sunshine in January is 4.7h.

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

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Sacramento, California.

How high is the UV index in January in Sacramento?

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to the Sun's UV rays.
Average temperature in January - Sacramento, CA
  • Average high temperature in January: 12.1°C

The warmest month (with the highest average high temperature) is July (33.4°C).
The month with the lowest average high temperature is January (12.1°C).

  • Average low temperature in January: 3.8°C

The month with the highest average low temperature is July (14.7°C).
The coldest month (with the lowest average low temperature) is December (3.6°C).

Average humidity in January - Sacramento, CA
  • Average humidity in January: 83.3%

The month with the highest relative humidity is January (83.3%).
The month with the lowest relative humidity is July (53.2%).

Average rainfall in January - Sacramento, CA
  • Average rainfall in January: 92.5mm

The wettest month (with the highest rainfall) is January (92.5mm).
The driest month (with the lowest rainfall) is July (0mm).

Average rainfall days in January - Sacramento, CA
  • Average rainfall days in January: 10.3 days

The month with the highest number of rainy days is January (10.3 days).
The month with the lowest number of rainy days is July (0 days).

Average daylight in January / Average sunshine in January - Sacramento, CA
  • Average daylight in January: 9.8h

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

  • Average sunshine in January: 4.7h

The month with most sunshine is July (Average sunshine: 14.2h).
The month with least sunshine is December (Average sunshine: 4.6h).

Average UV index in January - Sacramento, CA
  • Average UV index in January: 2

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January and December (UV index 2).