United StatesThe weather in December in Tracy
It's cool in December in Tracy with an average temperature of 14°C. Temperatures this month range from a low of 11°C to a high of 19°C. At night, you can expect temperatures between 1°C and 9°C.
Looking for sun? December isn’t a good month to be in Tracy. There’s too much chance of rain 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 Tracy, 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 23°C in 2020, Tracy reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 5°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of -2°C to a highest value of 15°C.
Rainfall amount
In December, there is an average of 134 mm of precipitation, spread over 17 days. The wind speed is around 3 Bft, mostly coming from the South.
Daily weather in December for Tracy
Click on any day in December to get detailed info about the usual weather on that day in Tracy. Check out the historical temperatures and precipitation over the past 10 years on this day.
December weather comparison
| Tracy | New York | |
|---|---|---|
| Average temperature | 14°C | 9°C |
| Max. temperature | 19°C | 12°C |
| Min. temperature | 1°C | -5°C |
| Total precipitation | 134 mm | 133 mm |
| Rainy days | 17 days | 17 days |
Start of December
The month of December starts in Tracy with cool temps, averaging around 17°C during the day and nights around 7°C.
Mid December
By mid-December, daytime temps drop to around 14°C, with nights around 5°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of December
By the end of December, the average daytime temperature in Tracy is around 13°C, while nighttime temps are about 4°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
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UV index
The UV index is a maximum of 2 this month. That's a low value on the intensity scale of 1 to 11. The risk of sunburn is minimal at this time.
Check out the climate of Tracy for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in December in Tracy, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in December in Tracy
Temperature in December in Tracy over the years
Precipitation charts
These charts show the average amount of precipitation in December in Tracy, 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 Tracy
Total precipitation in December in Tracy over the years
Daily UV index in December in Tracy
This chart shows the average daily UV index in December in Tracy, 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 Tracy
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Average weather in Tracy by month
Click on a month below to see detailed weather info for Tracy. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.