December weather forecast
Hyampom, CA

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Weather in December

The first month of the winter, December, is also a frosty month in Hyampom, California, with an average temperature ranging between min 30°F and max 45°F.

Temperature

Hyampom's coldest weather arrives in December, when temperatures average a high of 45°F and a low of 30°F.

Humidity

The average relative humidity in December in Hyampom is 81%.

Rainfall

December is the month with the most rainfall in Hyampom, California. Rain falls for 14.5 days and accumulates 6.14" of precipitation.

Snowfall

Months with snowfall in Hyampom, California, are January through April, November and December. In Hyampom, during December, snow falls for 4.3 days and regularly aggregates up to 5.43" of snow. In Hyampom, during the entire year, snow falls for 21.6 days and aggregates up to 28.46" of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year 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.

Sunshine

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

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 of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 2 in December translates into this advice:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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FAQ

What time of the year is the coldest in Hyampom?

December proves to be the coldest month in Hyampom, recording an average maximum temperature of 45°F and a minimum temperature of 30°F.

What is the usual temperature for Hyampom in December?

In Hyampom, in December, the average high-temperature is 45°F, and the average low-temperature is 30°F. In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is computed to be 86°F.

What is the average humidity in December in Hyampom?

The average relative humidity in December is 81%.

What is the rainiest month in Hyampom?

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

How many days does it rain in December in Hyampom?

In Hyampom, California, in December, it is raining for 14.5 days, with typically 6.14" of accumulated precipitation.

How much does it snow in Hyampom in December?

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

What is the month with the shortest days in Hyampom?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

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

The average day length in December is 9h and 19min.

When is the sunrise / sunset in December in Hyampom?

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

What is the month with the least sunshine in Hyampom?

The month with the least sunshine in Hyampom is December, with an average of 4.6h of sunshine.

How long on average sun shines in December in Hyampom?

The average sunshine duration in December is 4.6h.

What is the month 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.

What is the UV index reading in December in Hyampom?

In December, the average daily maximum UV index in Hyampom, California, is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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
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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