December weather forecastWallace, CA

December

Weather in December

December, the first month of the winter in Wallace, is still a cool month, with an average temperature varying between 40.1°F (4.5°C) and 54.5°F (12.5°C).

Temperature

Wallace's temperature records reveal December as the coldest month, marked by average highs of 54.5°F (12.5°C) and lows of 40.1°F (4.5°C).

Humidity

In Wallace, the average relative humidity in December is 71%.

Rainfall

In Wallace, in December, during 9.8 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. Throughout the year, there are 70.8 rainfall days, and 15.91" (404mm) of precipitation is accumulated.

Snowfall

December is the only month when snow falls in Wallace. The month with the most snowfall days is December, when snow falls for 0.1 days.

Daylight

The month with the shortest days is December, with an average of 9h and 36min of daylight.
On the first day of the month, sunrise is at 7:02 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:54 pm PST.

Sunshine

The month with the least sunshine is December, with an average of 5.8h of sunshine.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 2 in December interprets into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Wallace's December weather, marked by an average high temperature of 54.5°F (12.5°C) and an average low temperature of 40.1°F (4.5°C), is the coldest in the year.

The average high-temperature and low-temperature during December are 54.5°F (12.5°C) and 40.1°F (4.5°C) respectively. In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 89.6°F (32°C).

In Wallace, California, the average relative humidity in December is 71%.

In Wallace, during December, the rain falls for 9.8 days and regularly aggregates up to 2.87" (73mm) of precipitation.

The month with the most snowfall days is December, when snow falls for 0.1 days.

December is the first month it typically snows. Throughout December, there are 0.1 snowfall days.

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

In December, the average day length is 9h and 34min.

On the first day of December in Wallace, sunrise is at 7:02 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:54 pm PST.

With an average of 5.8h of sunshine, December has the least sunshine of the year.

In Wallace, the average sunshine duration in December is 5.8h.

December is the month with the lowest UV index, with an average maximum UV index of 2.

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from exposure to Sun's UV rays.
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 days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Wallace, CA

  • Average high temperature in December: 54.5°F

The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is December (54.5°F).

  • Average low temperature in December: 40.1°F

The months with the highest average low temperature are July and August (59.4°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).

Average pressure in December
Wallace, CA

  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Wallace, CA

  • Average wind speed in December: 4.9mph

The windiest month (with the highest average wind speed) is February (5.6mph).
The calmest month (with the lowest average wind speed) is September (4mph).

Average humidity in December
Wallace, CA

  • Average humidity in December: 71%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (41%).

Average rainfall in December
Wallace, CA

  • Average rainfall in December: 2.87"

The wettest month (with the highest rainfall) is March (2.91").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in December
Wallace, CA

  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is March (13.2 days).
The month with the least rainy days is August (0.8 days).

Average snowfall days in December
Wallace, CA

  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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

  • Average daylight in December: 9h and 36min

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: 5h and 48min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

Average sunshine days in December
Wallace, CA

  • Average sunshine days in December: 20.2 days

The month with the most sunshine days is July (29.2 days).
The month with the least sunshine days is March (16.8 days).

Average UV index in December
Wallace, CA

  • Average UV index in December: 2

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

Average cloud cover in December
Wallace, CA

  • Average cloud cover in December: 35

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in December
Wallace, 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).