December weather forecast and climate
Floriston, CA

Weather in December

The first month of the winter, December, is still a cold month in Floriston, California, with average temperature varying between 20.3°F (-6.5°C) and 35.4°F (1.9°C).

Temperature

With an average high-temperature of 35.4°F (1.9°C) and an average low-temperature of 20.3°F (-6.5°C), December is the coldest month.

Humidity

The average relative humidity in December is 76%.

Rainfall

The month with the most rainfall in Floriston is December when the rain falls for 3.2 days and typically aggregates up to 0.63" (16mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall. The month with the most snowfall in Floriston, California, is December when snow falls for 7.3 days and typically aggregates up to 2.2" (56mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9.4h of daylight.

Sunshine

January and December, with an average of 5.8h of sunshine, are months with the least sunshine.

UV index

Months with the lowest UV index in Floriston, California, are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 2 transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 Floriston?

The coldest month in Floriston, California, is December, with an average high-temperature of 35.4°F (1.9°C) and an average low-temperature of 20.3°F (-6.5°C).

What is the temperature in December in Floriston?

The average high-temperature, in December, in Floriston, is 35.4°F (1.9°C), while the average low-temperature is 20.3°F (-6.5°C).

What is the average humidity in December in Floriston?

In December, the average relative humidity in Floriston is 76%.

How much does it rain in Floriston in December?

In Floriston, California, in December, it is raining for 3.2 days, with typically 0.63" (16mm) of accumulated precipitation.

What is the rainiest month in Floriston?

The month with the most rainfall in Floriston, California, is December when the rain falls for 3.2 days and typically aggregates up to 0.63" (16mm) of precipitation.

How much does it snow in Floriston in December?

In Floriston, during December, snow falls for 7.3 days and regularly aggregates up to 2.2" (56mm) of snow.

When does it snow the most in Floriston?

December is the month with the most snowfall in Floriston. Snow falls for 7.3 days and accumulates 2.2" (56mm) of snow.

What is the month with the shortest days in Floriston?

The month with the shortest days in Floriston is December, with an average of 9.4h of daylight.

What is the average length of the day in December in Floriston?

In December, the average length of the day is 9.4h.

What is the month with the least sunshine in Floriston?

January and December, with an average of 5.8h of sunshine, are months with the least sunshine in Floriston, California.

How many hours of sunshine does Floriston have in December?

In December, the average sunshine is 5.8h.

What are the months with the lowest UV index in Floriston?

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

How high is the UV index in December in Floriston?

In Floriston, California, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to the Sun's UV rays.

Average temperature in December
Floriston, CA

Average temperature in December - Floriston, CA
  • Average high temperature in December: 35.4°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is December (35.4°F).

  • Average low temperature in December: 20.3°F

The month with the highest average low temperature is July (50.7°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).

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Average pressure in December
Floriston, CA

Average pressure in December - Floriston, CA
  • Average pressure in December: 30.16"

The month with the highest atmospheric pressure is January (30.18").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in December
Floriston, CA

Average wind speed in December - Floriston, CA
  • Average wind speed in December: 6.3mph

The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in December
Floriston, CA

Average humidity in December - Floriston, CA
  • Average humidity in December: 76%

The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is August (37%).

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Average rainfall in December
Floriston, CA

Average rainfall in December - Floriston, CA
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is December (0.63").
The driest months (with the least rainfall) are June, August and October (0.12").

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Average rainfall days in December
Floriston, CA

Average rainfall days in December - Floriston, CA
  • Average rainfall days in December: 3.2 days

The month with the highest number of rainy days is May (5.3 days).
The month with the least rainy days is November (1.3 days).

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Average snowfall in December
Floriston, CA

Average snowfall in December - Floriston, CA
  • Average snowfall in December: 2.2"

The month with the highest snowfall is December (2.2").
Months with the least snowfall are July and August (0").

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Average snowfall days in December
Floriston, CA

Average snowfall days in December - Floriston, CA
  • Average snowfall days in December: 7.3 days

The month with the highest number of snowfall days is December (7.3 days).
Months with the least snowfall days are July and August (0 days).

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

Average daylight in December / Average sunshine in December - Floriston, CA
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 5.8h

The month with the most sunshine is July (Average sunshine: 12h).
Months with the least sunshine are January and December (Average sunshine: 5.8).

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Average sunshine days in December
Floriston, CA

Average sunshine days in December - Floriston, CA
  • Average sunshine days in December: 24.4 days

The month with the most sunshine days is October (28.5 days).
The month with the least sunshine days is May (21.6 days).

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Average UV index in December
Floriston, CA

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

Months with the highest UV index are June, July and August (UV index 5).
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
Floriston, CA

Average cloud cover in December - Floriston, CA
  • Average cloud cover in December: 38

Months with the most cloud cover are March and December (Cloud cover 38).
Months with the least cloud cover are July and August (Cloud cover 8).

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Average visibility in December
Floriston, CA

Average visibility in December - Floriston, CA
  • Average visibility in December: 6mi

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

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