December weather forecast and climate
Palmdale, CA

Weather in December

December, the first month of the winter, in Palmdale, is also a fresh month, with average temperature varying between 38.1°F (3.4°C) and 54.5°F (12.5°C).

Temperature

December is the coldest month, with an average high-temperature of 54.5°F (12.5°C) and an average low-temperature of 38.1°F (3.4°C).

Humidity

With an average relative humidity of 54%, December is the most humid month.

Rainfall

The month with the most rainfall in Palmdale is December when the rain falls for 4.4 days and typically aggregates up to 1.14" (29mm) of precipitation.

Snowfall

Months with snowfall in Palmdale are February, March, November and December. December is the month with the most snowfall in Palmdale, California. Snow falls for 0.1 days and accumulates 1.81" (46mm) of snow.

Daylight

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

Sunshine

The average sunshine in Palmdale is 6.9h.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Palmdale. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for average individuals.
Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Palmdale?

With an average high-temperature of 54.5°F (12.5°C) and an average low-temperature of 38.1°F (3.4°C), December is the coldest month in Palmdale.

What is the temperature in December in Palmdale?

In December, the average high-temperature is 54.5°F (12.5°C), and the average low-temperature is 38.1°F (3.4°C).

What is the most humid month in Palmdale?

With an average relative humidity of 54%, December is the most humid month in Palmdale.

What is the average humidity in December in Palmdale?

In Palmdale, California, the average relative humidity in December is 54%.

How many days does it rain in December in Palmdale?

In December, in Palmdale, the rain falls for 4.4 days. Throughout December, 1.14" (29mm) of precipitation is accumulated.

What is the wettest month in Palmdale?

The month with the most rainfall in Palmdale is December when the rain falls for 4.4 days and typically aggregates up to 1.14" (29mm) of precipitation.

What is the last month it snows in Palmdale?

December is the last month it regularly snows in Palmdale. During 0.1 snowfall days, in December, Palmdale aggregates 1.81" (46mm) of snow.

When does it snow the most in Palmdale?

December is the month with the most snowfall in Palmdale, California. Snow falls for 0.1 days and accumulates 1.81" (46mm) of snow.

What is the month with the shortest days in Palmdale?

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

How many hours of daylight does Palmdale have in December?

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

How long on average sun shines in December in Palmdale?

The average sunshine in December in Palmdale is 6.9h.

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

Months with the lowest UV index in Palmdale, California, are January, February, November and December, with an average maximum UV index of 3.

How high is the UV index in December in Palmdale?

In Palmdale, California, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in December
Palmdale, CA

Average temperature in December - Palmdale, CA
  • Average high temperature in December: 54.5°F

The warmest months (with the highest average high temperature) are July and August (91°F).
The month with the lowest average high temperature is December (54.5°F).

  • Average low temperature in December: 38.1°F

The month with the highest average low temperature is August (65.1°F).
The coldest month (with the lowest average low temperature) is December (38.1°F).

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Average pressure in December
Palmdale, CA

Average pressure in December - Palmdale, CA
  • Average pressure in December: 30.09"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.86").

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Average wind speed in December
Palmdale, CA

Average wind speed in December - Palmdale, CA
  • Average wind speed in December: 6.8mph

The windiest month (with the highest average wind speed) is May (9.1mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).

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Average humidity in December
Palmdale, CA

Average humidity in December - Palmdale, CA
  • Average humidity in December: 54%

The month with the highest relative humidity is December (54%).
The month with the lowest relative humidity is August (33%).

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Average rainfall in December
Palmdale, CA

Average rainfall in December - Palmdale, CA
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is December (1.14").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in December
Palmdale, CA

Average rainfall days in December - Palmdale, CA
  • Average rainfall days in December: 4.4 days

The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (1.2 days).

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Average snowfall in December
Palmdale, CA

Average snowfall in December - Palmdale, CA
  • Average snowfall in December: 1.81"

The month with the highest snowfall is December (1.81").
Months with the least snowfall are January, April, May, June, July, August, September and October (0").

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Average snowfall days in December
Palmdale, CA

Average snowfall days in December - Palmdale, CA
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is February (0.6 days).
Months with the least snowfall days are January, May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Palmdale, 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: 6.9h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
The month with the least sunshine is January (Average sunshine: 6.8h).

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Average sunshine days in December
Palmdale, CA

Average sunshine days in December - Palmdale, CA
  • Average sunshine days in December: 25.9 days

The month with the most sunshine days is June (27.8 days).
The month with the least sunshine days is February (23.3 days).

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Average UV index in December
Palmdale, CA

Average UV index in December - Palmdale, CA
  • Average UV index in December: 3

Months with the highest UV index are June, July and August (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in December
Palmdale, CA

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

The month with the most cloud cover is December (Cloud cover 22).
Months with the least cloud cover are August and September (Cloud cover 5).

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Average visibility in December
Palmdale, CA

Average visibility in December - Palmdale, 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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