December weather forecast
Ballou, CA

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Weather in December

December, the first month of the winter in Ballou, is still a comfortable month, with an average temperature fluctuating between 63°F (17.2°C) and 46.2°F (7.9°C).

Temperature

The lowest temperatures are recorded in December, with averages reaching a high of 63°F (17.2°C) and a low of 46.2°F (7.9°C).

Humidity

In Ballou, California, the average relative humidity in December is 51%.

Rainfall

The wettest months are February and December, with an average 1.42" (36mm) of rainfall.

Daylight

The month with the shortest days is December, with an average of 9h and 54min of daylight.
On the first day of December in Ballou, sunrise is at 6:38 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 4:51 pm PST.

Sunshine

February and December, with an average of 6.9h of sunshine, are months with the least sunshine.

UV index

With an average maximum UV index of 3, December is the month with the lowest UV index in Ballou, California. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 3 in December leads to these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What are the coldest months in Ballou?

Ballou's coldest month, December, generally records average temperatures ranging from a high of 63°F (17.2°C) to a low of 46.2°F (7.9°C).

What is the average December temperature in Ballou?

The average high-temperature, in December, in Ballou, is 63°F (17.2°C), while the average low-temperature is 46.2°F (7.9°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is estimated at 89.6°F (32°C).

What is the average humidity in December in Ballou?

In Ballou, California, the average relative humidity in December is 51%.

What is the rainiest month in Ballou?

The wettest months in Ballou are February and December, with an average 1.42" (36mm) of rainfall.

How much does it rain in Ballou in December?

In Ballou, California, in December, during 5.8 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

What is the month with the shortest days in Ballou?

The month with the shortest days in Ballou is December, with an average of 9h and 54min of daylight.

How many hours of daylight does Ballou have in December?

In December, the average day length in Ballou is 9h and 56min.

When is the sunrise / sunset in December in Ballou?

On the first day of December in Ballou, sunrise is at 6:38 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 4:51 pm PST.

What is the month with the least sunshine in Ballou?

February and December, with an average of 6.9h of sunshine, are months with the least sunshine in Ballou.

How many hours of sunshine does Ballou have in December?

In Ballou, the average sunshine duration in December is 6.9h.

When is the lowest UV index in Ballou?

The month with the lowest UV index in Ballou is December, with an average maximum UV index of 3.

What is the UV index intensity in December in Ballou?

In December, the average daily maximum UV index in Ballou, California, is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Ballou, CA

Average temperature in December - Ballou, CA
  • Average high temperature in December: 63°F

The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is December (63°F).

  • Average low temperature in December: 46.2°F

The month with the highest average low temperature is August (66.4°F).
The coldest month (with the lowest average low temperature) is February (45.9°F).

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Average pressure in December
Ballou, CA

Average pressure in December - Ballou, CA
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in December
Ballou, CA

Average wind speed in December - Ballou, CA
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is May (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

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Average humidity in December
Ballou, CA

Average humidity in December - Ballou, CA
  • Average humidity in December: 51%

The months with the highest relative humidity are March and May (54%).
The month with the lowest relative humidity is August (43%).

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Average rainfall in December
Ballou, CA

Average rainfall in December - Ballou, CA
  • Average rainfall in December: 1.42"

The wettest months (with the highest rainfall) are February and December (1.42").
The driest months (with the least rainfall) are June and August (0.04").

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Average rainfall days in December
Ballou, CA

Average rainfall days in December - Ballou, CA
  • Average rainfall days in December: 5.8 days

The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is June (1.1 days).

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

Average daylight in December / Average sunshine in December - Ballou, CA
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 6h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).

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Average sunshine days in December
Ballou, CA

Average sunshine days in December - Ballou, CA
  • Average sunshine days in December: 23.9 days

The month with the most sunshine days is August (28.6 days).
The month with the least sunshine days is February (21.5 days).

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Average UV index in December
Ballou, CA

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

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in December
Ballou, CA

Average cloud cover in December - Ballou, CA
  • Average cloud cover in December: 21

The months with the most cloud cover are February, March and December (Cloud cover 21).
The months with the least cloud cover are July and August (Cloud cover 5).

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Average visibility in December
Ballou, CA

Average visibility in December - Ballou, 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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Ballou, California, USA

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