December weather forecast
Greenview, CA

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Weather in December

December, the first month of the winter in Greenview, is also a wintry month, with an average temperature varying between 41.5°F (5.3°C) and 26.6°F (-3°C).

Temperature

Greenview's December weather reaches an average high of 41.5°F (5.3°C) and an average low of 26.6°F (-3°C), making it the coldest month.

Humidity

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

Rainfall

December is the month with the most rainfall. Rain falls for 12.8 days and accumulates 2.99" (76mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Greenview, in December, snow falls for 6.1 days, with typically accumulated 4.13" (105mm) of snow. In Greenview, during the entire year, snow falls for 30.9 days and aggregates up to 20.47" (520mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:42 pm. On the last day of December, sunrise is at 7:38 am and sunset at 4:51 pm PST.

Sunshine

The months with the least sunshine are January and December, with an average of 5.7h of sunshine.

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 value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

Temperature records mark December as the coldest month, with highs averaging 41.5°F (5.3°C) and lows at 26.6°F (-3°C).

How cold is December?

In December, the average high-temperature and low-temperature in Greenview are 41.5°F (5.3°C) and 26.6°F (-3°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), 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?

The average relative humidity in December is 81%.

What is the wettest month?

December is the month with the most rainfall. Rain falls for 12.8 days and accumulates 2.99" (76mm) of precipitation.

How much does it rain in December?

In Greenview, California, during December, the rain falls for 12.8 days and regularly aggregates up to 2.99" (76mm) of precipitation.

How much does it snow in December?

In Greenview, during December, snow falls for 6.1 days and regularly aggregates up to 4.13" (105mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 12min of daylight.

How many hours of daylight does Greenview have in December?

The average day length in December is 9h and 14min.

When is the sunrise / sunset in December?

On the first day of December in Greenview, sunrise is at 7:19 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:51 pm PST.

What are the months with the least sunshine?

January and December, with an average of 5.7h of sunshine, are months with the least sunshine.

How many hours of sunshine does Greenview have in December?

The average sunshine duration in December is 5.7h.

What are the months with 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 reading in December?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Greenview, CA

Average temperature in December - Greenview, CA
  • Average high temperature in December: 41.5°F

The warmest months (with the highest average high temperature) are July and August (84.2°F).
The month with the lowest average high temperature is December (41.5°F).

  • Average low temperature in December: 26.6°F

The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is December (26.6°F).

Average pressure in December
Greenview, CA

Average pressure in December - Greenview, CA
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).

Average wind speed in December
Greenview, CA

Average wind speed in December - Greenview, CA
  • Average wind speed in December: 4.8mph

The windiest month (with the highest average wind speed) is March (5.4mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in December
Greenview, CA

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

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (52%).

Average rainfall in December
Greenview, CA

Average rainfall in December - Greenview, CA
  • Average rainfall in December: 2.99"

The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in December
Greenview, CA

Average rainfall days in December - Greenview, CA
  • Average rainfall days in December: 12.8 days

The month with the highest number of rainy days is March (16.7 days).
The month with the least rainy days is July (3.2 days).

Average snowfall in December
Greenview, CA

Average snowfall in December - Greenview, CA
  • Average snowfall in December: 4.13"

The month with the highest snowfall is February (5.39").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Greenview, CA

Average snowfall days in December - Greenview, CA
  • Average snowfall days in December: 6.1 days

The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Greenview, CA
  • Average daylight in December: 9h and 1min

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 12min).

  • Average sunshine in December: 5h and 4min

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

Average sunshine days in December
Greenview, CA

Average sunshine days in December - Greenview, CA
  • Average sunshine days in December: 14.4 days

The month with the most sunshine days is August (25.7 days).
The month with the least sunshine days is March (11 days).

Average UV index in December
Greenview, CA

Average UV index in December - Greenview, 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
Greenview, CA

Average cloud cover in December - Greenview, CA
  • Average cloud cover in December: 43

The months with the most cloud cover are March and December (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 8).

Average visibility in December
Greenview, CA

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

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

Greenview, California, USA

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