December weather forecastDulah, CA

December

Weather in December

December, the first month of the winter in Dulah, is still a refreshing month, with temperature in the range of an average high of 58.8°F (14.9°C) and an average low of 45.9°F (7.7°C).

Temperature

In Dulah, the lowest average temperatures are observed in December, with a high of 58.8°F (14.9°C) and a low of 45.9°F (7.7°C).

Humidity

In Dulah, California, the average relative humidity in December is 57%.

Rainfall

In Dulah, in December, during 6.3 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, in Dulah, there are 49.6 rainfall days, and 7.68" (195mm) of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 54min of daylight.
On the first day of December in Dulah, California, sunrise is at 6:46 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 4:58 pm PST.

Sunshine

The average sunshine in December is 6.8h.

UV index

The months with the lowest UV index in Dulah are November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In December, an average UV index of 3 transforms into the following instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The coldest period tends to be December, when average temperatures fluctuate between a high of 58.8°F (14.9°C) and a low of 45.9°F (7.7°C).

The high-temperature, in December, in Dulah, records 58.8°F (14.9°C), while the low-temperature is 45.9°F (7.7°C).

In December, the average relative humidity in Dulah, California, is 57%.

In December, in Dulah, the rain falls for 6.3 days. Throughout December, 1.34" (34mm) of precipitation is accumulated.

With an average of 9h and 54min of daylight, December has the shortest days of the year in Dulah.

In December, the average day length in Dulah is 9h and 55min.

In December, on the first day of the month, sunrise is at 6:46 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 4:58 pm PST.

In December, the average sunshine duration in Dulah is 6.8h.

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

In December, the average daily maximum UV index in Dulah, California, is 3. A UV Index reading of 3 to 5 represents a medium health risk from unsafe 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Dulah, CA

  • Average high temperature in December: 58.8°F

The warmest month (with the highest average high temperature) is August (79°F).
The month with the lowest average high temperature is December (58.8°F).

  • Average low temperature in December: 45.9°F

The month with the highest average low temperature is August (61.5°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).

Average pressure in December
Dulah, CA

  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).

Average wind speed in December
Dulah, CA

  • Average wind speed in December: 6mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in December
Dulah, CA

  • Average humidity in December: 57%

The month with the highest relative humidity is March (63%).
The months with the lowest relative humidity are October and November (52%).

Average rainfall in December
Dulah, CA

  • Average rainfall in December: 1.34"

The wettest month (with the highest rainfall) is January (1.5").
The driest month (with the least rainfall) is August (0.08").

Average rainfall days in December
Dulah, CA

  • Average rainfall days in December: 6.3 days

The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is August (1.3 days).

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

  • Average daylight in December: 9h and 54min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 6h and 48min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).

Average sunshine days in December
Dulah, CA

  • Average sunshine days in December: 24.1 days

The month with the most sunshine days is October (25.7 days).
The month with the least sunshine days is February (20.8 days).

Average UV index in December
Dulah, CA

  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are November and December (UV index 3).

Average cloud cover in December
Dulah, CA

  • Average cloud cover in December: 22

The month with the most cloud cover is March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in December
Dulah, 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).