December weather forecast
Hornbrook, CA

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Weather in December

December, the first month of the winter in Hornbrook, is also a wintry month, with temperature in the range of an average low of 27.1°F (-2.7°C) and an average high of 41.5°F (5.3°C).

Temperature

With average temperatures fluctuating between a high of 41.5°F (5.3°C) and a low of 27.1°F (-2.7°C), December stands out as the coldest month.

Humidity

The average relative humidity in December in Hornbrook is 80%.

Rainfall

December is the month with the most rainfall in Hornbrook. Rain falls for 12.5 days and accumulates 2.56" (65mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Hornbrook, California. In Hornbrook, California, in December, during 6.6 snowfall days, 3.98" (101mm) of snow is typically accumulated. Throughout the year, there are 30.9 snowfall days, and 18.03" (458mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:39 pm. On the last day of December, sunrise is at 7:37 am and sunset at 4:49 pm PST.

Sunshine

December has the least sunshine of the year in Hornbrook, with an average of 5.7h of sunshine.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Enhance your sun protection with tightly woven, yet airy clothing. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What is the coldest time of year in Hornbrook?

December, with its average high-temperature of 41.5°F (5.3°C) and an average low-temperature of 27.1°F (-2.7°C), holds the record as the coldest month in Hornbrook.

How cold is December in Hornbrook?

December temperatures vary between a high-temperature of 41.5°F (5.3°C) and a low-temperature of 27.1°F (-2.7°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 86°F (30°C).

What is the average humidity in December in Hornbrook?

The average relative humidity in December in Hornbrook is 80%.

What is the wettest month in Hornbrook?

December is the month with the most rainfall. Rain falls for 12.5 days and accumulates 2.56" (65mm) of precipitation.

How many days does it rain in December in Hornbrook?

In Hornbrook, in December, it is raining for 12.5 days, with typically 2.56" (65mm) of accumulated precipitation.

How many days does it snow in December in Hornbrook?

In Hornbrook, California, in December, snow falls for 6.6 days, with typically accumulated 3.98" (101mm) of snow.

What is the month with the shortest days in Hornbrook?

With an average of 9h and 12min of daylight, December has the shortest days of the year.

How many hours of daylight does Hornbrook have in December?

In Hornbrook, the average day length in December is 9h and 11min.

When is the sunrise / sunset in December in Hornbrook?

On the first day of December in Hornbrook, sunrise is at 7:19 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:49 pm PST.

What is the month with the least sunshine in Hornbrook?

December has the least sunshine of the year in Hornbrook, with an average of 5.7h of sunshine.

How many hours of sunshine does Hornbrook have in December?

In Hornbrook, the average sunshine duration in December is 5.7h.

When is the lowest UV index in Hornbrook?

The months with the lowest UV index in Hornbrook, California, are January through March, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Hornbrook?

The average daily maximum UV index in December in Hornbrook, California, is 2. A UV Index reading of 2, and below, represents a low health threat 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
Hornbrook, CA

Average temperature in December - Hornbrook, CA
  • Average high temperature in December: 41.5°F

The warmest months (with the highest average high temperature) are July and August (84.6°F).
The month with the lowest average high temperature is December (41.5°F).

  • Average low temperature in December: 27.1°F

The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).

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Average pressure in December
Hornbrook, CA

Average pressure in December - Hornbrook, CA
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).

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Average wind speed in December
Hornbrook, CA

Average wind speed in December - Hornbrook, CA
  • Average wind speed in December: 5mph

The windiest month (with the highest average wind speed) is March (5.7mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

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Average humidity in December
Hornbrook, CA

Average humidity in December - Hornbrook, CA
  • Average humidity in December: 80%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (50%).

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Average rainfall in December
Hornbrook, CA

Average rainfall in December - Hornbrook, CA
  • Average rainfall in December: 2.56"

The wettest month (with the highest rainfall) is December (2.56").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in December
Hornbrook, CA

Average rainfall days in December - Hornbrook, CA
  • Average rainfall days in December: 12.5 days

The month with the highest number of rainy days is March (17.2 days).
The month with the least rainy days is August (3.5 days).

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Average snowfall in December
Hornbrook, CA

Average snowfall in December - Hornbrook, CA
  • Average snowfall in December: 3.98"

The month with the highest snowfall is January (4.45").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Hornbrook, CA

Average snowfall days in December - Hornbrook, CA
  • Average snowfall days in December: 6.6 days

The month with the highest number of snowfall days is February (6.9 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Hornbrook, CA
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in December
Hornbrook, CA

Average sunshine days in December - Hornbrook, CA
  • Average sunshine days in December: 14.8 days

The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is March (11.5 days).

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Average UV index in December
Hornbrook, CA

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in December
Hornbrook, CA

Average cloud cover in December - Hornbrook, CA
  • Average cloud cover in December: 41

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 8).

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Average visibility in December
Hornbrook, CA

Average visibility in December - Hornbrook, CA
  • Average visibility in December: 5mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).

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Hornbrook, California, USA

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