December weather forecast
Proberta, CA

Share

Weather in December

December, the first month of the winter in Proberta, is still a cool month, with an average temperature varying between 40.3°F (4.6°C) and 54.1°F (12.3°C).

Temperature

The lowest temperatures are recorded in December, with averages reaching a high of 54.1°F (12.3°C) and a low of 40.3°F (4.6°C).

Humidity

In December, the average relative humidity is 66%.

Rainfall

December is the month with the most rainfall. Rain falls for 11.1 days and accumulates 3.07" (78mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:12 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:30 am and sunset at 4:53 pm PST.

Sunshine

The months with the least sunshine in Proberta are January and December, with an average of 5.8h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Proberta. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 3 in December leads to these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

Proberta reaches its average lowest temperatures in December, measuring 54.1°F (12.3°C) at the peak and 40.3°F (4.6°C) at the lowest.

What is the temperature in December?

December temperatures vary between a high-temperature of 54.1°F (12.3°C) and a low-temperature of 40.3°F (4.6°C).

What is the average humidity in December?

In December, the average relative humidity is 66%.

What is the rainiest month?

December is the month with the most rainfall in Proberta. Rain falls for 11.1 days and accumulates 3.07" (78mm) of precipitation.

How many days does it rain in December in Proberta?

In December, the rain falls for 11.1 days. Throughout December, 3.07" (78mm) of precipitation is accumulated.

When it does not snow in Proberta?

January, March through December are months without snowfall.

What is the month with the shortest days?

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

What is the average length of the day in December?

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

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:12 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:53 pm PST.

What is the month with the least sunshine?

The months with the least sunshine in Proberta are January and December, with an average of 5.8h of sunshine.

How many hours of sunshine does Proberta have in December?

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

What is the month with the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.

How high is the UV index in December?

In Proberta, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Proberta, CA

Average temperature in December - Proberta, CA
  • Average high temperature in December: 54.1°F

The warmest month (with the highest average high temperature) is July (96.4°F).
The month with the lowest average high temperature is December (54.1°F).

  • Average low temperature in December: 40.3°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is December (40.3°F).

Average pressure in December
Proberta, CA

Average pressure in December - Proberta, 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 (29.9"Hg).

Average wind speed in December
Proberta, CA

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

The windiest month (with the highest average wind speed) is March (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in December
Proberta, CA

Average humidity in December - Proberta, CA
  • Average humidity in December: 66%

The month with the highest relative humidity is March (70%).
The months with the lowest relative humidity are July and August (29%).

Average rainfall in December
Proberta, CA

Average rainfall in December - Proberta, CA
  • Average rainfall in December: 3.07"

The wettest month (with the highest rainfall) is December (3.07").
The driest month (with the least rainfall) is August (0.04").

Average rainfall days in December
Proberta, CA

Average rainfall days in December - Proberta, CA
  • Average rainfall days in December: 11.1 days

The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is August (1.1 days).

Average snowfall days in December
Proberta, CA

Average snowfall days in December - Proberta, CA
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in December / Average sunshine in December - Proberta, 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 5min

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

Average sunshine days in December
Proberta, CA

Average sunshine days in December - Proberta, CA
  • Average sunshine days in December: 18.5 days

The months with the most sunshine days are July and August (29.3 days).
The month with the least sunshine days is March (14.9 days).

Average UV index in December
Proberta, CA

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

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in December
Proberta, CA

Average cloud cover in December - Proberta, CA
  • Average cloud cover in December: 36

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in December
Proberta, CA

Average visibility in December - Proberta, 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).

Proberta, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location