December weather forecast
Hyampom, CA

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Weather in December

December, the first month of the winter in Hyampom, is also a frosty month, with temperature in the range of an average low of 30°F (-1.1°C) and an average high of 45°F (7.2°C).

Temperature

In Hyampom, California, the month of December is known for its lowest average temperatures, reaching a high of 45°F (7.2°C) and a low of 30°F (-1.1°C).

Humidity

In December, the average relative humidity in Hyampom is 81%.

Rainfall

The month with the most rainfall in Hyampom is December, when the rain falls for 14.5 days and typically aggregates up to 6.14" (156mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Hyampom, in December, during 4.3 snowfall days, 5.43" (138mm) of snow is typically accumulated. Throughout the year, there are 21.6 snowfall days, and 28.46" (723mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:47 pm. On the last day of December, sunrise is at 7:37 am and sunset at 4:56 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 4.6h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Frequently asked questions

What are the coldest months in Hyampom?

December, marked by an average high-temperature of 45°F (7.2°C) and a low-temperature of 30°F (-1.1°C), is the coldest month in Hyampom.

What is the temperature in December in Hyampom?

The high-temperature in Hyampom, California, during December is 45°F (7.2°C) and the low-temperature is 30°F (-1.1°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in August is appraised at 86°F (30°C).

What is the average humidity in December in Hyampom?

In Hyampom, California, the average relative humidity in December is 81%.

What is the rainiest month in Hyampom?

December is the month with the most rainfall. Rain falls for 14.5 days and accumulates 6.14" (156mm) of precipitation.

How much does it rain in Hyampom in December?

In Hyampom, during December, the rain falls for 14.5 days and regularly aggregates up to 6.14" (156mm) of precipitation.

How many days does it snow in December in Hyampom?

In Hyampom, California, in December, during 4.3 snowfall days, 5.43" (138mm) of snow is typically accumulated.

What is the month with the shortest days in Hyampom?

The month with the shortest days in Hyampom is December, with an average of 9h and 18min of daylight.

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

In December, the average day length in Hyampom, California, is 9h and 19min.

When are sunrise and sunset in December in Hyampom?

On the first day of December, sunrise is at 7:18 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:56 pm PST.

What is the month with the least sunshine in Hyampom?

With an average of 4.6h of sunshine, December has the least sunshine of the year in Hyampom.

How long on average sun shines in December in Hyampom?

The average sunshine duration in December in Hyampom is 4.6h.

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

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

How high is the UV index in December in Hyampom?

The average daily maximum UV index in December in Hyampom is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to 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
Hyampom, CA

Average temperature in December - Hyampom, CA
  • Average high temperature in December: 45°F

The warmest months (with the highest average high temperature) are July and August (84.6°F).
The month with the lowest average high temperature is December (45°F).

  • Average low temperature in December: 30°F

The month with the highest average low temperature is July (51.3°F).
The coldest month (with the lowest average low temperature) is December (30°F).

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Average pressure in December
Hyampom, CA

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).

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Average wind speed in December
Hyampom, CA

Average wind speed in December - Hyampom, CA
  • Average wind speed in December: 4.2mph

The windiest months (with the highest average wind speed) are March and April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).

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Average humidity in December
Hyampom, CA

Average humidity in December - Hyampom, CA
  • Average humidity in December: 81%

The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is August (54%).

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Average rainfall in December
Hyampom, CA

Average rainfall in December - Hyampom, CA
  • Average rainfall in December: 6.14"

The wettest month (with the highest rainfall) is December (6.14").
The driest months (with the least rainfall) are July and August (0.16").

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Average rainfall days in December
Hyampom, CA

Average rainfall days in December - Hyampom, CA
  • Average rainfall days in December: 14.5 days

The month with the highest number of rainy days is March (18.3 days).
The month with the least rainy days is August (2.5 days).

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Average snowfall in December
Hyampom, CA

Average snowfall in December - Hyampom, CA
  • Average snowfall in December: 5.43"

The month with the highest snowfall is February (8.35").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Hyampom, CA

Average snowfall days in December - Hyampom, CA
  • Average snowfall days in December: 4.3 days

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Hyampom, CA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

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Average sunshine days in December
Hyampom, CA

Average sunshine days in December - Hyampom, CA
  • Average sunshine days in December: 13.3 days

The month with the most sunshine days is August (26.8 days).
The month with the least sunshine days is March (10.6 days).

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Average UV index in December
Hyampom, CA

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Hyampom, CA

Average cloud cover in December - Hyampom, CA
  • Average cloud cover in December: 52

The month with the most cloud cover is March (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 8).

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Average visibility in December
Hyampom, CA

Average visibility in December - Hyampom, CA
  • Average visibility in December: 4mi

The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are March and December (4mi).

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Hyampom, California, USA

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