December weather forecast
Tuolumne, CA

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Weather in December

December, the first month of the winter in Tuolumne, is also a fresh month, with an average temperature fluctuating between 50.4°F (10.2°C) and 34.3°F (1.3°C).

Temperature

With average high and low temperatures of 50.4°F (10.2°C) and 34.3°F (1.3°C) respectively, December is Tuolumne's coldest month.

Humidity

In December, the average relative humidity is 65%.

Rainfall

In Tuolumne, in December, during 9.7 rainfall days, 4.57" (116mm) of precipitation is typically accumulated. In Tuolumne, during the entire year, the rain falls for 77.4 days and collects up to 29.06" (738mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Tuolumne, California, during December, snow falls for 2.9 days and regularly aggregates up to 3.19" (81mm) of snow. Throughout the year, there are 16.2 snowfall days, and 38.07" (967mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 36min of daylight.
On the first day of the month, sunrise is at 6:58 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:16 am and sunset at 4:51 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 6.1h of sunshine.

UV index

In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index, 3 during December, leads to the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

December, with average temperatures reaching a high of 50.4°F (10.2°C) and a low of 34.3°F (1.3°C), is the coldest month.

What is the average December temperature?

The high-temperature, in December, in Tuolumne, records 50.4°F (10.2°C), while the low-temperature is 34.3°F (1.3°C). In June, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is evaluated at 80.6°F (27°C).

What is the average humidity in December?

In December, the average relative humidity is 65%.

How many days does it rain in December?

In Tuolumne, California, during December, the rain falls for 9.7 days and regularly aggregates up to 4.57" (116mm) of precipitation.

How many days does it snow in December?

In Tuolumne, California, in December, snow falls for 2.9 days, with typically accumulated 3.19" (81mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 36min of daylight.

How many hours of daylight does Tuolumne have in December?

The average day length in December is 9h and 35min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:58 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:51 pm PST.

What is the month with the least sunshine?

December has the least sunshine of the year in Tuolumne, California, with an average of 6.1h of sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 6.1h.

What is the UV index reading in December?

The average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
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
Tuolumne, CA

Average temperature in December - Tuolumne, CA
  • Average high temperature in December: 50.4°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (50.4°F).

  • Average low temperature in December: 34.3°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).

Average pressure in December
Tuolumne, CA

Average pressure in December - Tuolumne, CA
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Tuolumne, CA

Average wind speed in December - Tuolumne, CA
  • Average wind speed in December: 4.9mph

The windiest months (with the highest average wind speed) are February and March (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.8mph).

Average humidity in December
Tuolumne, CA

Average humidity in December - Tuolumne, CA
  • Average humidity in December: 65%

The month with the highest relative humidity is March (70%).
The months with the lowest relative humidity are July and August (33%).

Average rainfall in December
Tuolumne, CA

Average rainfall in December - Tuolumne, CA
  • Average rainfall in December: 4.57"

The wettest month (with the highest rainfall) is March (5.47").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in December
Tuolumne, CA

Average rainfall days in December - Tuolumne, CA
  • Average rainfall days in December: 9.7 days

The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is August (1.6 days).

Average snowfall in December
Tuolumne, CA

Average snowfall in December - Tuolumne, CA
  • Average snowfall in December: 3.19"

The month with the highest snowfall is February (12.87").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Tuolumne, CA

Average snowfall days in December - Tuolumne, CA
  • Average snowfall days in December: 2.9 days

The months with the highest number of snowfall days are February and March (3.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Tuolumne, CA
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 6h and 1min

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

Average sunshine days in December
Tuolumne, CA

Average sunshine days in December - Tuolumne, CA
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is March (15.6 days).

Average UV index in December
Tuolumne, CA

Average UV index in December - Tuolumne, CA
  • Average UV index in December: 3

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February and November (UV index 2).

Average cloud cover in December
Tuolumne, CA

Average cloud cover in December - Tuolumne, CA
  • Average cloud cover in December: 31

The month with the most cloud cover is March (Cloud cover 35).
The months with the least cloud cover are July and August (Cloud cover 5).

Average visibility in December
Tuolumne, CA

Average visibility in December - Tuolumne, CA
  • Average visibility in December: 6mi

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

Tuolumne, California, USA

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