December weather forecast
Manzanar, CA

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Weather in December

The first month of the winter, December, is still a chilly month in Manzanar, California, with an average temperature fluctuating between 31.5°F (-0.3°C) and 46.9°F (8.3°C).

Temperature

Manzanar's coldest month, December, generally records average temperatures ranging from a high of 46.9°F (8.3°C) to a low of 31.5°F (-0.3°C).

Humidity

The most humid month is December, with an average relative humidity of 47%.

Rainfall

The month with the most rainfall is December, when the rain falls for 5.1 days and typically aggregates up to 0.67" (17mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. December is the month with the most snowfall. Snow falls for 1.2 days and accumulates 1.18" (30mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 42min of daylight.
On the first day of the month, sunrise is at 6:47 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:05 am and sunset at 4:46 pm PST.

Sunshine

January, February and December, with an average of 7.3h of sunshine, are months with the least sunshine.

UV index

November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

December is the month that records the lowest temperatures, with averages ranging from a high of 46.9°F (8.3°C) to a low of 31.5°F (-0.3°C).

What is the usual temperature for Manzanar in December?

Manzanar in December has an average high-temperature of 46.9°F (8.3°C) and an average low-temperature of 31.5°F (-0.3°C).

What is the most humid month?

With an average relative humidity of 47%, December is the most humid month.

What is the average humidity in December?

The average relative humidity in December is 47%.

What is the rainiest month?

December is the month with the most rainfall. Rain falls for 5.1 days and accumulates 0.67" (17mm) of precipitation.

How many days does it rain in December?

In December, the rain falls for 5.1 days. Throughout December, 0.67" (17mm) of precipitation is accumulated.

What is the snowiest month?

The month with the most snowfall is December, when snow falls for 1.2 days and typically aggregates up to 1.18" (30mm) of snow.

How many days does it snow in December?

In Manzanar, in December, snow falls for 1.2 days, with typically accumulated 1.18" (30mm) of snow.

What is the month with the shortest days?

With an average of 9h and 42min of daylight, December has the shortest days of the year.

How many hours of daylight does Manzanar have in December?

In December, the average day length is 9h and 42min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:47 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 4:46 pm PST.

What is the month with the least sunshine?

The months with the least sunshine are January, February and December, with an average of 7.3h of sunshine.

How long on average sun shines in December?

In Manzanar, the average sunshine duration in December is 7.3h.

What are the months with the lowest UV index?

The months with the lowest UV index are November and December, with an average maximum UV index of 2.

What is the UV index reading in December?

In Manzanar, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Manzanar, CA

Average temperature in December - Manzanar, CA
  • Average high temperature in December: 46.9°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (46.9°F).

  • Average low temperature in December: 31.5°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is December (31.5°F).

Average pressure in December
Manzanar, CA

Average pressure in December - Manzanar, CA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in December
Manzanar, CA

Average wind speed in December - Manzanar, CA
  • Average wind speed in December: 6.2mph

The windiest months (with the highest average wind speed) are April, May and June (7.6mph).
The calmest month (with the lowest average wind speed) is November (5.8mph).

Average humidity in December
Manzanar, CA

Average humidity in December - Manzanar, CA
  • Average humidity in December: 47%

The month with the highest relative humidity is December (47%).
The month with the lowest relative humidity is August (19%).

Average rainfall in December
Manzanar, CA

Average rainfall in December - Manzanar, CA
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is December (0.67").
The driest months (with the least rainfall) are June and September (0.16").

Average rainfall days in December
Manzanar, CA

Average rainfall days in December - Manzanar, CA
  • Average rainfall days in December: 5.1 days

The month with the highest number of rainy days is March (5.7 days).
The month with the least rainy days is September (2.3 days).

Average snowfall in December
Manzanar, CA

Average snowfall in December - Manzanar, CA
  • Average snowfall in December: 1.18"

The month with the highest snowfall is December (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Manzanar, CA

Average snowfall days in December - Manzanar, CA
  • Average snowfall days in December: 1.2 days

The month with the highest number of snowfall days is December (1.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Manzanar, CA
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 7h and 2min

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 18min).

Average sunshine days in December
Manzanar, CA

Average sunshine days in December - Manzanar, CA
  • Average sunshine days in December: 25.3 days

The month with the most sunshine days is October (27.7 days).
The month with the least sunshine days is July (20 days).

Average UV index in December
Manzanar, CA

Average UV index in December - Manzanar, CA
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 2).

Average cloud cover in December
Manzanar, CA

Average cloud cover in December - Manzanar, CA
  • Average cloud cover in December: 15

The month with the most cloud cover is January (Cloud cover 16).
The months with the least cloud cover are August and September (Cloud cover 5).

Average visibility in December
Manzanar, CA

Average visibility in December - Manzanar, CA
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Manzanar, California, USA

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