December weather forecast
Philo, CA

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Weather in December

December, the first month of the winter in Philo, is also a fresh month, with an average temperature fluctuating between 53.6°F (12°C) and 37.4°F (3°C).

Temperature

The coldest time of the year is December, with temperatures averaging a high of 53.6°F (12°C) and a low of 37.4°F (3°C).

Humidity

In December, the average relative humidity is 76%.

Rainfall

The wettest months in Philo are February and December, with an average 3.11" (79mm) of rainfall.

Snowfall

In Philo, snow does not fall in January, March through December.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year in Philo, California.
On the first day of the month, sunrise is at 7:14 am and sunset at 4:51 pm. On the last day of December, in Philo, sunrise is at 7:32 am and sunset at 5:01 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 5.3h of sunshine.

UV index

In December, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 3 translates into these guidelines:
Make use of precautions - Suggestions to resist sunburn are communicated. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Frequently asked questions

What part of the year is the coldest in Philo?

December is the coldest month in Philo, exhibiting average temperatures of 53.6°F (12°C) at the peak and 37.4°F (3°C) at the base.

What are the temperatures in Philo in December?

In Philo, in December, the average high-temperature is 53.6°F (12°C), and the average low-temperature is 37.4°F (3°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is evaluated at 82.4°F (28°C).

What is the average humidity in December in Philo?

The average relative humidity in December in Philo, California, is 76%.

What is the rainiest month in Philo?

The months with the most rainfall in Philo are February and December, with an average 3.11" (79mm) of precipitation.

How much does it rain in Philo in December?

In Philo, California, during December, the rain falls for 12.5 days and regularly aggregates up to 3.11" (79mm) of precipitation.

When it does not snow in Philo?

In Philo, snow does not fall in January, March through December.

What is the month with the shortest days in Philo?

December has the shortest days of the year in Philo, California, with an average of 9h and 30min of daylight.

How many hours of daylight does Philo have in December?

In Philo, the average day length in December is 9h and 29min.

When is the sunrise / sunset in December in Philo?

In December, on the first day of the month, sunrise is at 7:14 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:01 pm PST.

What is the month with the least sunshine in Philo?

December has the least sunshine of the year, with an average of 5.3h of sunshine.

How many hours of sunshine does Philo have in December?

In Philo, California, the average sunshine duration in December is 5.3h.

What is the UV index reading in December in Philo?

The average daily maximum UV index in December in Philo is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Philo, CA

Average temperature in December - Philo, CA
  • Average high temperature in December: 53.6°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (53.6°F).

  • Average low temperature in December: 37.4°F

The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (37.4°F).

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Average pressure in December
Philo, CA

Average pressure in December - Philo, CA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).

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Average wind speed in December
Philo, CA

Average wind speed in December - Philo, CA
  • Average wind speed in December: 4.5mph

The windiest months (with the highest average wind speed) are April, May and June (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).

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Average humidity in December
Philo, CA

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

The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July and September (58%).

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Average rainfall in December
Philo, CA

Average rainfall in December - Philo, CA
  • Average rainfall in December: 3.11"

The wettest months (with the highest rainfall) are February and December (3.11").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in December
Philo, CA

Average rainfall days in December - Philo, CA
  • Average rainfall days in December: 12.5 days

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (1.3 days).

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Average snowfall in December
Philo, CA

Average snowfall in December - Philo, CA
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in December
Philo, CA

Average snowfall days in December - Philo, CA
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in December
Philo, CA

Average sunshine days in December - Philo, CA
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (15.9 days).

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Average UV index in December
Philo, CA

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February and November (UV index 2).

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Average cloud cover in December
Philo, CA

Average cloud cover in December - Philo, CA
  • Average cloud cover in December: 42

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in December
Philo, CA

Average visibility in December - Philo, CA
  • Average visibility in December: 5mi

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

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Philo, California, USA

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