December weather forecast and climate
Hornbrook, CA

Weather in December

The first month of the winter, December, is still a cold month in Hornbrook, California, with average temperature varying between 27.1°F (-2.7°C) and 41.5°F (5.3°C).

Temperature

The coldest month is December, with an average high-temperature of 41.5°F (5.3°C) and an average low-temperature of 27.1°F (-2.7°C).

Humidity

In December, the average relative humidity is 80%.

Rainfall

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

Snowfall

Months with snowfall in Hornbrook are January through May, October through December. In Hornbrook, in December, snow falls for 6.6 days, with typically accumulated 3.98" (101mm) of snow. In Hornbrook, during the entire year, snow falls for 30.9 days, and aggregates up to 18.03" (458mm) of snow.

Daylight

The month with the shortest days in Hornbrook is December, with an average of 9.2h of daylight.

Sunshine

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

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Hornbrook, California. A UV Index reading of 2, and below, represents a low threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Hornbrook?

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

What is the temperature in December in Hornbrook?

The average high-temperature, in December, in Hornbrook, is 41.5°F (5.3°C), while the average low-temperature is 27.1°F (-2.7°C).

What is the average humidity in December in Hornbrook?

In December, the average relative humidity in Hornbrook, California, is 80%.

How much does it rain in Hornbrook in December?

In Hornbrook, California, during December, the rain falls for 12.5 days and regularly aggregates up to 2.56" (65mm) of precipitation.

What is the rainiest 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 much does it snow in Hornbrook in December?

In December, it is snowing for 6.6 days. Throughout December, 3.98" (101mm) of snow is accumulated.

What is the month with the shortest days in Hornbrook?

The month with the shortest days in Hornbrook is December, with an average of 9.2h of daylight.

How many hours of daylight does Hornbrook have in December?

In December, the average length of the day in Hornbrook is 9.2h.

What is the month with the least sunshine in Hornbrook?

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

How many hours of sunshine does Hornbrook have in December?

The average sunshine in December is 5.7h.

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

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 reading in December in Hornbrook?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation.

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"

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

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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").
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).
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: 9.2h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in December: 5.7h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.7h).

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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).
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

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

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