December weather forecast
Brooks, CA

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Weather in December

December, the first month of the winter in Brooks, is still a cool month, with an average temperature varying between 41.5°F (5.3°C) and 54.3°F (12.4°C).

Temperature

With average temperatures fluctuating between a high of 54.3°F (12.4°C) and a low of 41.5°F (5.3°C), December stands out as the coldest month.

Humidity

In Brooks, the average relative humidity in December is 70%.

Rainfall

In December, the rain falls for 10.5 days. Throughout December, 2.13" (54mm) of precipitation is accumulated. Throughout the year, there are 70.7 rainfall days, and 12.52" (318mm) of precipitation is accumulated.

Snowfall

The only month with snowfall is December. The month with the most snowfall days is December, when snow falls for 0.1 days.

Daylight

December has the shortest days of the year, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:08 am and sunset at 4:47 pm. On the last day of December, sunrise is at 7:26 am and sunset at 4:57 pm PST.

Sunshine

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

UV index

The months with the lowest UV index in Brooks are January, February, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 3 in December, converts into the following recommendations:
Act with care - The need to guard against sun damage is communicated. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.

Frequently asked questions

What part of the year is the coldest?

December stands out as Brooks's coldest month, with temperatures ranging between an average high of 54.3°F (12.4°C) and a low of 41.5°F (5.3°C).

What are the temperatures in December?

In Brooks, 54.3°F (12.4°C) is the average high-temperature and 41.5°F (5.3°C) is the average low-temperature during December. In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 89.6°F (32°C).

What is the average humidity in December?

In Brooks, the average relative humidity in December is 70%.

How many days does it rain in December?

In Brooks, in December, during 10.5 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

When does it snow the most?

December has the most snowfall days of the year. Snow falls for 0.1 days.

When does it start snowing?

December is the first month it typically snows. Throughout December, there are 0.1 snowfall days.

What is the month with the shortest days?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In Brooks, the average day length in December is 9h and 31min.

What time are sunrise and sunset in December in Brooks?

On the first day of December, sunrise is at 7:08 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:57 pm PST.

What is the month with the least sunshine?

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

How long on average sun shines in December?

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

When is the lowest UV index?

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index.

What is the UV index reading in December?

The average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
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
Brooks, CA

Average temperature in December - Brooks, CA
  • Average high temperature in December: 54.3°F

The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is December (54.3°F).

  • Average low temperature in December: 41.5°F

The months with the highest average low temperature are July and August (59.2°F).
The coldest months (with the lowest average low temperature) are January and December (41.5°F).

Average pressure in December
Brooks, CA

Average pressure in December - Brooks, CA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in December
Brooks, CA

Average wind speed in December - Brooks, CA
  • Average wind speed in December: 5.6mph

The windiest month (with the highest average wind speed) is February (6.3mph).
The calmest month (with the lowest average wind speed) is September (5mph).

Average humidity in December
Brooks, CA

Average humidity in December - Brooks, CA
  • Average humidity in December: 70%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is September (43%).

Average rainfall in December
Brooks, CA

Average rainfall in December - Brooks, CA
  • Average rainfall in December: 2.13"

The wettest month (with the highest rainfall) is February (2.52").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in December
Brooks, CA

Average rainfall days in December - Brooks, CA
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is July (0.8 days).

Average snowfall days in December
Brooks, CA

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

The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in December / Average sunshine in December - Brooks, CA
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • 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).

Average sunshine days in December
Brooks, CA

Average sunshine days in December - Brooks, CA
  • Average sunshine days in December: 19.4 days

The months with the most sunshine days are July and August (29.3 days).
The month with the least sunshine days is March (16.8 days).

Average UV index in December
Brooks, CA

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

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

Average cloud cover in December
Brooks, CA

Average cloud cover in December - Brooks, CA
  • Average cloud cover in December: 37

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in December
Brooks, CA

Average visibility in December - Brooks, 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).

Brooks, California, USA

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