December weather forecast
Harbison Canyon, CA

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Weather in December

The first month of the winter, December, is still a comfortable month in Harbison Canyon, California, with an average temperature fluctuating between 61.3°F (16.3°C) and 44.6°F (7°C).

Temperature

The coldest temperatures occur during December, when averages reach a peak of 61.3°F (16.3°C) and a low of 44.6°F (7°C).

Humidity

In December, the average relative humidity in Harbison Canyon is 57%.

Rainfall

In Harbison Canyon, in December, during 5.5 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Harbison Canyon, during the entire year, the rain falls for 62 days and collects up to 6.38" (162mm) of precipitation.

Daylight

The month with the shortest days in Harbison Canyon is December, with an average of 10h and 0min of daylight.
On the first day of December, sunrise is at 6:32 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 4:51 pm PST.

Sunshine

The month with the least sunshine in Harbison Canyon is December, with an average of 6.7h of sunshine.

UV index

November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: In December, a regular UV index of 3 translates into these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What time of the year is the coldest in Harbison Canyon?

December, with its average high-temperature of 61.3°F (16.3°C) and an average low-temperature of 44.6°F (7°C), holds the record as the coldest month in Harbison Canyon, California.

What are the temperatures in Harbison Canyon in December?

In Harbison Canyon, 61.3°F (16.3°C) is the average high-temperature and 44.6°F (7°C) is the average low-temperature during December. In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is evaluated at 86°F (30°C).

What is the average humidity in December in Harbison Canyon?

In Harbison Canyon, the average relative humidity in December is 57%.

How many days does it rain in December in Harbison Canyon?

In Harbison Canyon, California, in December, during 5.5 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

What is the month with the shortest days in Harbison Canyon?

December has the shortest days of the year, with an average of 10h and 0min of daylight.

How many hours of daylight does Harbison Canyon have in December?

The average day length in December in Harbison Canyon is 10h and 2min.

What time are sunrise and sunset in December in Harbison Canyon?

On the first day of December in Harbison Canyon, sunrise is at 6:32 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 4:51 pm PST.

What is the month with the least sunshine in Harbison Canyon?

With an average of 6.7h of sunshine, December has the least sunshine of the year in Harbison Canyon, California.

How many hours of sunshine does Harbison Canyon have in December?

In December, the average sunshine duration is 6.7h.

When is the lowest UV index in Harbison Canyon?

November and December, with an average maximum UV index of 3, are months with the lowest UV index in Harbison Canyon.

What is the UV index reading in December in Harbison Canyon?

The average daily maximum UV index in December in Harbison Canyon is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Harbison Canyon, CA

Average temperature in December - Harbison Canyon, CA
  • Average high temperature in December: 61.3°F

The warmest month (with the highest average high temperature) is August (87.3°F).
The month with the lowest average high temperature is December (61.3°F).

  • Average low temperature in December: 44.6°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 (44.2°F).

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Average pressure in December
Harbison Canyon, CA

Average pressure in December - Harbison Canyon, CA
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in December
Harbison Canyon, CA

Average wind speed in December - Harbison Canyon, CA
  • Average wind speed in December: 5.1mph

The windiest month (with the highest average wind speed) is May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).

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Average humidity in December
Harbison Canyon, CA

Average humidity in December - Harbison Canyon, CA
  • Average humidity in December: 57%

The month with the highest relative humidity is May (62%).
The month with the lowest relative humidity is November (51%).

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Average rainfall in December
Harbison Canyon, CA

Average rainfall in December - Harbison Canyon, CA
  • Average rainfall in December: 0.71"

The wettest month (with the highest rainfall) is February (0.94").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in December
Harbison Canyon, CA

Average rainfall days in December - Harbison Canyon, CA
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (1.5 days).

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Average daylight in December /
Average sunshine in December
Harbison Canyon, CA

Average daylight in December / Average sunshine in December - Harbison Canyon, CA
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 6h and 4min

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

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Average sunshine days in December
Harbison Canyon, CA

Average sunshine days in December - Harbison Canyon, CA
  • Average sunshine days in December: 24 days

The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is July (19.4 days).

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Average UV index in December
Harbison Canyon, CA

Average UV index in December - Harbison Canyon, CA
  • Average UV index in December: 3

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are November and December (UV index 3).

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Average cloud cover in December
Harbison Canyon, CA

Average cloud cover in December - Harbison Canyon, CA
  • Average cloud cover in December: 23

The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in December
Harbison Canyon, CA

Average visibility in December - Harbison Canyon, 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).

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Harbison Canyon, California, USA

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