December weather forecast and climate
Hawthorne, CA

Weather in December

December, the first month of the winter, in Hawthorne, is still a comfortable month, with average temperature fluctuating between 64°F (17.8°C) and 51.4°F (10.8°C).

Temperature

With an average high-temperature of 64°F (17.8°C) and an average low-temperature of 51.4°F (10.8°C), December is the coldest month.

Humidity

The average relative humidity in Hawthorne, California, is 56%.

Rainfall

In December, in Hawthorne, California, the rain falls for 5 days. Throughout December, 1.3" (33mm) of precipitation is accumulated. In Hawthorne, California, during the entire year, the rain falls for 47.6 days and collects up to 7.24" (184mm) of precipitation.

Daylight

With an average of 9.9h of daylight, December has the shortest days of the year in Hawthorne.

Sunshine

December has the least sunshine of the year in Hawthorne, with an average of 6.7h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Hawthorne. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 4 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 coldest month in Hawthorne?

With an average high-temperature of 64°F (17.8°C) and an average low-temperature of 51.4°F (10.8°C), December is the coldest month.

What is the temperature in December in Hawthorne?

In Hawthorne, California, in December, the average high-temperature is 64°F (17.8°C), and the average low-temperature is 51.4°F (10.8°C).

What is the average humidity in December in Hawthorne?

The average relative humidity in December is 56%.

How many days does it rain in December in Hawthorne?

In Hawthorne, California, in December, it is raining for 5 days, with typically 1.3" (33mm) of accumulated precipitation.

What is the month with the shortest days in Hawthorne?

The month with the shortest days in Hawthorne is December, with an average of 9.9h of daylight.

How many hours of daylight does Hawthorne have in December?

In December, the average length of the day in Hawthorne is 9.9h.

What is the month with the least sunshine in Hawthorne?

December has the least sunshine of the year in Hawthorne, with an average of 6.7h of sunshine.

How many hours of sunshine does Hawthorne have in December?

The average sunshine in December in Hawthorne, California, is 6.7h.

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

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

What is the UV index reading in December in Hawthorne?

In December, the average daily maximum UV index in Hawthorne is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in December
Hawthorne, CA

Average temperature in December - Hawthorne, CA
  • Average high temperature in December: 64°F

The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (64°F).

  • Average low temperature in December: 51.4°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 (51.1°F).

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Average pressure in December
Hawthorne, CA

Average pressure in December - Hawthorne, CA
  • Average pressure in December: 30.07"

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is June (29.89").

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Average wind speed in December
Hawthorne, CA

Average wind speed in December - Hawthorne, CA
  • Average wind speed in December: 5.5mph

The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is September (4.9mph).

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Average humidity in December
Hawthorne, CA

Average humidity in December - Hawthorne, CA
  • Average humidity in December: 56%

The month with the highest relative humidity is June (70%).
The month with the lowest relative humidity is November (54%).

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Average rainfall in December
Hawthorne, CA

Average rainfall in December - Hawthorne, CA
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is January (1.42").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in December
Hawthorne, CA

Average rainfall days in December - Hawthorne, CA
  • Average rainfall days in December: 5 days

The month with the highest number of rainy days is March (6.5 days).
The month with the least rainy days is June (1.7 days).

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Average daylight in December /
Average sunshine in December
Hawthorne, CA

Average daylight in December / Average sunshine in December - Hawthorne, CA
  • Average daylight in December: 9.9h

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 December: 6.7h

Months with the most sunshine are July and August (Average sunshine: 11.9h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days in December
Hawthorne, CA

Average sunshine days in December - Hawthorne, CA
  • Average sunshine days in December: 24.8 days

The month with the most sunshine days is October (25.5 days).
The month with the least sunshine days is June (21.4 days).

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Average UV index in December
Hawthorne, CA

Average UV index in December - Hawthorne, CA
  • Average UV index in December: 4

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 4).

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Average cloud cover in December
Hawthorne, CA

Average cloud cover in December - Hawthorne, CA
  • Average cloud cover in December: 22

Months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in December
Hawthorne, CA

Average visibility in December - Hawthorne, CA
  • Average visibility in December: 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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