December weather forecast
Genesee, CA

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Weather in December

The first month of the winter, December, is also an icy month in Genesee, California, with an average temperature varying between 39.2°F (4°C) and 23.4°F (-4.8°C).

Temperature

December, marked by an average high-temperature of 39.2°F (4°C) and a low-temperature of 23.4°F (-4.8°C), is the coldest month.

Humidity

In Genesee, the average relative humidity in December is 78%.

Rainfall

The months with the most rainfall in Genesee are February and December, with an average 4.06" (103mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Genesee. In Genesee, in December, during 7.8 snowfall days, 11.3" (287mm) of snow is typically accumulated. Throughout the year, there are 37.7 snowfall days, and 56.02" (1423mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:06 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:47 pm PST.

Sunshine

In December, the average sunshine in Genesee is 5.5h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What time of the year is the coldest in Genesee?

Genesee notes the coldest temperatures in December, with a average high of 39.2°F (4°C) and a low of 23.4°F (-4.8°C).

How cold does it get in Genesee in December?

Genesee in December has an average high-temperature of 39.2°F (4°C) and an average low-temperature of 23.4°F (-4.8°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 82.4°F (28°C).

What is the average humidity in December in Genesee?

In Genesee, California, the average relative humidity in December is 78%.

What is the rainiest month in Genesee?

The months with the most rainfall are February and December, with an average 4.06" (103mm) of precipitation.

How much does it rain in Genesee in December?

In Genesee, in December, during 11.2 rainfall days, 4.06" (103mm) of precipitation is typically accumulated.

How much does it snow in Genesee in December?

In Genesee, during December, snow falls for 7.8 days and regularly aggregates up to 11.3" (287mm) of snow.

What is the month with the shortest days in Genesee?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

How many hours of daylight does Genesee have in December?

In December, the average day length in Genesee is 9h and 23min.

What time are sunrise and sunset in December in Genesee?

On the first day of December in Genesee, sunrise is at 7:06 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:47 pm PST.

How many hours of sunshine does Genesee have in December?

In December, the average sunshine duration is 5.5h.

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

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

How high is the UV index in December in Genesee?

In Genesee, the average daily maximum UV index in December 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
Genesee, CA

Average temperature in December - Genesee, CA
  • Average high temperature in December: 39.2°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (39.2°F).

  • Average low temperature in December: 23.4°F

The month with the highest average low temperature is July (49.1°F).
The coldest month (with the lowest average low temperature) is December (23.4°F).

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Average pressure in December
Genesee, CA

Average pressure in December - Genesee, CA
  • Average pressure in December: 30.16"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in December
Genesee, CA

Average wind speed in December - Genesee, CA
  • Average wind speed in December: 5.7mph

The windiest month (with the highest average wind speed) is March (6.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in December
Genesee, CA

Average humidity in December - Genesee, CA
  • Average humidity in December: 78%

The months with the highest relative humidity are January and March (81%).
The month with the lowest relative humidity is July (41%).

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Average rainfall in December
Genesee, CA

Average rainfall in December - Genesee, CA
  • Average rainfall in December: 4.06"

The wettest months (with the highest rainfall) are February and December (4.06").
The driest month (with the least rainfall) is July (0.12").

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Average rainfall days in December
Genesee, CA

Average rainfall days in December - Genesee, CA
  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is August (1.8 days).

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Average snowfall in December
Genesee, CA

Average snowfall in December - Genesee, CA
  • Average snowfall in December: 11.3"

The month with the highest snowfall is February (13.07").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Genesee, CA

Average snowfall days in December - Genesee, CA
  • Average snowfall days in December: 7.8 days

The month with the highest number of snowfall days is March (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Genesee, 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 24min).

  • Average sunshine in December: 5h and 3min

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 24min).

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Average sunshine days in December
Genesee, CA

Average sunshine days in December - Genesee, CA
  • Average sunshine days in December: 16.4 days

The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (12.3 days).

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Average UV index in December
Genesee, CA

Average UV index in December - Genesee, 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).

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Average cloud cover in December
Genesee, CA

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

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

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Average visibility in December
Genesee, CA

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

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

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Genesee, California, USA

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