December weather forecast
Termo, CA

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Weather in December

December, the first month of the winter in Termo, is also a wintry month, with temperature in the range of an average high of 36.5°F (2.5°C) and an average low of 22.3°F (-5.4°C).

Temperature

Termo reaches its lowest average temperatures in December, measuring 36.5°F (2.5°C) at the peak and 22.3°F (-5.4°C) at the lowest.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Termo, in December, during 5.9 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. Throughout the year, in Termo, there are 73 rainfall days, and 12.17" (309mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through June, September through December. The month with the most snowfall is December, when snow falls for 12.5 days and typically aggregates up to 12.91" (328mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:07 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:44 pm PST.

Sunshine

In December, the average sunshine is 5.8h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 2 during December leads to these instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Jun 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Termo?

In Termo, December is the month with the lowest recorded average temperatures, measuring a high of 36.5°F (2.5°C) and a low of 22.3°F (-5.4°C).

How cold is it in December?

The high-temperature during December is 36.5°F (2.5°C) and the low-temperature is 22.3°F (-5.4°C).

What is the average humidity in December?

The average relative humidity in December is 79%.

How much does it rain in December?

In Termo, during December, the rain falls for 5.9 days and regularly aggregates up to 1.97" (50mm) of precipitation.

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 12.5 days and accumulates 12.91" (328mm) of snow.

How much does it snow in December?

In Termo, in December, snow falls for 12.5 days, with typically accumulated 12.91" (328mm) of snow.

What is the month with the shortest days?

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

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

In December, the average day length is 9h and 18min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:07 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:44 pm PST.

How many hours of sunshine does Termo have in December?

The average sunshine duration in December is 5.8h.

When is the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Termo, CA

Average temperature in December - Termo, CA
  • Average high temperature in December: 36.5°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is December (36.5°F).

  • Average low temperature in December: 22.3°F

The month with the highest average low temperature is July (51.4°F).
The coldest month (with the lowest average low temperature) is December (22.3°F).

Average pressure in December
Termo, CA

Average pressure in December - Termo, CA
  • Average pressure in December: 30.17"Hg

The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Termo, CA

Average wind speed in December - Termo, CA
  • Average wind speed in December: 6mph

The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in December
Termo, CA

Average humidity in December - Termo, CA
  • Average humidity in December: 79%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (35%).

Average rainfall in December
Termo, CA

Average rainfall in December - Termo, CA
  • Average rainfall in December: 1.97"

The wettest month (with the highest rainfall) is March (2.01").
The driest month (with the least rainfall) is July (0.12").

Average rainfall days in December
Termo, CA

Average rainfall days in December - Termo, CA
  • Average rainfall days in December: 5.9 days

The month with the highest number of rainy days is March (10.4 days).
The month with the least rainy days is August (2.2 days).

Average snowfall in December
Termo, CA

Average snowfall in December - Termo, CA
  • Average snowfall in December: 12.91"

The month with the highest snowfall is December (12.91").
The months with the least snowfall are July and August (0").

Average snowfall days in December
Termo, CA

Average snowfall days in December - Termo, CA
  • Average snowfall days in December: 12.5 days

The months with the highest number of snowfall days are March and December (12.5 days).
The months with the least snowfall days are July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).

Average sunshine days in December
Termo, CA

Average sunshine days in December - Termo, CA
  • Average sunshine days in December: 16.2 days

The months with the most sunshine days are July and August (27.3 days).
The month with the least sunshine days is March (12.8 days).

Average UV index in December
Termo, CA

Average UV index in December - Termo, 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, March, November and December (UV index 2).

Average cloud cover in December
Termo, CA

Average cloud cover in December - Termo, CA
  • Average cloud cover in December: 40

The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 7).

Average visibility in December
Termo, CA

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

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

Termo, California, USA

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