January weather forecast and climate
South Whittier, CA

Weather in January

January, the same as December, is another comfortable winter month in South Whittier, California, with temperature in the range of an average low of 50.7°F (10.4°C) and an average high of 66.9°F (19.4°C).

Temperature

In January, the average high-temperature is practically the same as in December - a still enjoyable 66.9°F (19.4°C). In January, the average low-temperature is 50.7°F (10.4°C).

Humidity

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

Rainfall

In South Whittier, during January, the rain falls for 2.6 days and regularly aggregates up to 0.2" (5mm) of precipitation. In South Whittier, during the entire year, the rain falls for 27.3 days and collects up to 1.97" (50mm) of precipitation.

Daylight

The average length of the day in South Whittier, California, is 10.2h.

Sunshine

Months with the least sunshine in South Whittier are January, February and December, with an average of 6.8h of sunshine.

UV index

The average daily maximum UV index in South Whittier is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: In January, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. 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.
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FAQ

What is the temperature in January in South Whittier?

In January, in South Whittier, the average high-temperature is 66.9°F (19.4°C), and the average low-temperature is 50.7°F (10.4°C).

What is the average humidity in January in South Whittier?

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

How much does it rain in South Whittier in January?

In January, in South Whittier, the rain falls for 2.6 days. Throughout January, 0.2" (5mm) of precipitation is accumulated.

How many hours of daylight does South Whittier have in January?

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

What is the month with the least sunshine in South Whittier?

January, February and December, with an average of 6.8h of sunshine, are months with the least sunshine in South Whittier, California.

How many hours of sunshine does South Whittier have in January?

The average sunshine in January is 6.8h.

What is the UV index intensity in January in South Whittier?

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

Average temperature in January
South Whittier, CA

Average temperature in January - South Whittier, CA
  • Average high temperature in January: 66.9°F

The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is December (64.8°F).

  • Average low temperature in January: 50.7°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (49.8°F).

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Average pressure in January
South Whittier, CA

Average pressure in January - South Whittier, 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 (29.88").

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Average wind speed in January
South Whittier, CA

Average wind speed in January - South Whittier, CA
  • Average wind speed in January: 5.3mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest months (with the lowest average wind speed) are September and October (4.7mph).

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Average humidity in January
South Whittier, CA

Average humidity in January - South Whittier, CA
  • Average humidity in January: 51%

The month with the highest relative humidity is June (63%).
The month with the lowest relative humidity is November (48%).

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Average rainfall in January
South Whittier, CA

Average rainfall in January - South Whittier, CA
  • Average rainfall in January: 0.2"

The wettest month (with the highest rainfall) is December (0.47").
The driest month (with the least rainfall) is June (0").

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Average rainfall days in January
South Whittier, CA

Average rainfall days in January - South Whittier, CA
  • Average rainfall days in January: 2.6 days

The month with the highest number of rainy days is March (4.6 days).
The month with the least rainy days is June (0.5 days).

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Average daylight in January /
Average sunshine in January
South Whittier, CA

Average daylight in January / Average sunshine in January - South Whittier, 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: 6.8h

Months with the most sunshine are July and August (Average sunshine: 12h).
Months with the least sunshine are January, February and December (Average sunshine: 6.8).

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Average sunshine days in January
South Whittier, CA

Average sunshine days in January - South Whittier, CA
  • Average sunshine days in January: 27.5 days

The month with the most sunshine days is June (29.3 days).
The month with the least sunshine days is February (23.8 days).

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Average UV index in January
South Whittier, CA

Average UV index in January - South Whittier, CA
  • Average UV index in January: 5

The month with the highest UV index is August (UV index 7).
Months with the lowest UV index are February, November and December (UV index 4).

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Average cloud cover in January
South Whittier, CA

Average cloud cover in January - South Whittier, CA
  • Average cloud cover in January: 21

Months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in January
South Whittier, CA

Average visibility in January - South Whittier, 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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