The weather in December in Barstow

It's cool to moderate in December in Barstow with an average temperature of 15°C. Temperatures this month range from a low of 12°C to a high of 18°C. At night, you can expect temperatures between 0°C and 6°C.

Looking for sun and warm weather? December isn’t a good month to be in Barstow. The temperatures are too low for a warm stay this month.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in December for Barstow, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 24°C in 2021, Barstow reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 7°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of -6°C to a highest value of 13°C.

Precipitation and snowfall

In December, there is an average of 22 mm of precipitation, spread over 5 days. Of the total precipitation, about 1,0 cm falls as snow in December. The wind speed is around 4 Bft, mostly coming from the West.

Daily weather in December for Barstow

Click on any day in December to get detailed info about the usual weather on that day in Barstow. Check out the historical temperatures and precipitation over the past 10 years on this day.

December weather comparison

  Barstow New York
Average temperature 15°C 9°C
Max. temperature 18°C 12°C
Min. temperature 0°C -5°C
Total precipitation 22 mm 133 mm
Rainy days 5 days 17 days
Total snowfall 1,0 cm 9,7 cm
Snowy days 1 day 3 days

Start of December

The month of December starts in Barstow with cool temps, averaging around 16°C during the day and nights around 4°C.

Mid December

By mid-December, daytime temps stay steady at around 16°C, with nights around 3°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of December

By the end of December, the average daytime temperature in Barstow is around 14°C, while nighttime temps are about 3°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.

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UV index

The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.

Check out the climate of Barstow for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in December in Barstow, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in December in Barstow

Temperature in December in Barstow over the years

Precipitation charts

These charts show the average amount of precipitation in December in Barstow, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in December in Barstow

Total precipitation in December in Barstow over the years

Daily Snowfall in December in Barstow

Snowfall in December in Barstow per year

Daily UV index in December in Barstow

This chart shows the average daily UV index in December in Barstow, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in December in Barstow

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Average weather in Barstow by month

Click on a month below to see detailed weather info for Barstow. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.