Whittier
December
Weather in Whittier for December 2025
Your guide to Whittier weather in December - trends and predictions
In general, the average temperature in Whittier at the beginning of December is 20.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17 °F by the end of December.
Precipitation in Whittier during December is a rare event, with an average of fewer than 2 rainy days.
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Temperatures
Rain 🌧️
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31
Dry days
0
Rainy days
0
Snow days
19°/10°
Temperatures
10 km/h
Avg max wind
54 %
Avg humidity
Whittier in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  22° | 2  18° | 3  16° | 4  17° | 5 20° | 6 25° | |
| 7 24° | 8 18° | 9 23° | 10 23° | 11 20° | 12 14° | 13 15° |
| 14 16° | 15 18° | 16 20° | 17 21° | 18 27° | 19 22° | 20 20° |
| 21 16° | 22 17° | 23 17° | 24 13° | 25 16° | 26 17° | 27 13° |
| 28 19° | 29 14° | 30 21° | 31 19° |
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Temperatures trend during December in Whittier
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 | Sunny | 22° /13° | 0 mm | 6 | |
| Dec. 2 | Overcast | 18° /11° | 0 mm | 4 | |
| Dec. 3 | Cloudy | 16° /10° | 0 mm | 4 | |
| Dec. 4 | Partly cloudy | 17° /10° | 0 mm | 5 | |
| Dec. 5 | Partly cloudy | 20° /10° | 0 mm | 6 | |
| Dec. 6 | Sunny | 25° /10° | 0 mm | 7 | |
| Dec. 7 | Cloudy | 24° /11° | 0 mm | 5 | |
| Dec. 8 | Partly cloudy | 18° /11° | 0 mm | 5 | |
| Dec. 9 | Partly cloudy | 23° /9° | 0 mm | 6 | |
| Dec. 10 | Sunny | 23° /11° | 0 mm | 6 | |
| Dec. 11 | Overcast | 20° /11° | 0 mm | 5 | |
| Dec. 12 | Cloudy | 14° /10° | 0 mm | 3 | |
| Dec. 13 | Sunny | 15° /6° | 0 mm | 5 | |
| Dec. 14 | Overcast | 16° /11° | 0 mm | 4 | |
| Dec. 15 | Sunny | 18° /9° | 0 mm | 5 | |
| Dec. 16 | Overcast | 20° /11° | 0 mm | 5 | |
| Dec. 17 | Sunny | 21° /9° | 0 mm | 6 | |
| Dec. 18 | Sunny | 27° /15° | 0 mm | 7 | |
| Dec. 19 | Overcast | 22° /15° | 0 mm | 5 | |
| Dec. 20 | Cloudy | 20° /11° | 0 mm | 5 | |
| Dec. 21 | Partly cloudy | 16° /10° | 0 mm | 5 | |
| Dec. 22 | Partly cloudy | 17° /10° | 0 mm | 5 | |
| Dec. 23 | Partly cloudy | 17° /11° | 0 mm | 5 | |
| Dec. 24 | Overcast | 13° /11° | 0 mm | 3 | |
| Dec. 25 | Sunny | 16° /8° | 0 mm | 5 | |
| Dec. 26 | Overcast | 17° /10° | 0 mm | 4 | |
| Dec. 27 | Cloudy | 13° /9° | 0 mm | 3 | |
| Dec. 28 | Sunny | 19° /10° | 0 mm | 5 | |
| Dec. 29 | Partly cloudy | 14° /9° | 0 mm | 4 | |
| Dec. 30 | Partly cloudy | 21° /9° | 0 mm | 6 | |
| Dec. 31 | Overcast | 19° /9° | 0 mm | 4 | |
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Important Notice
Our weather forecast for Whittier in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Whittier forecast closer to your planned date for the most up-to-date weather information.
Whittier in December - FAQ
What are the expected maximum and minimum temperatures in Whittier during December?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Whittier during December?
Rainfall in Whittier during December is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 0 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Whittier during December?
The average wind speed in Whittier during December is 10 km/h, suggesting breezy to windy conditions, depending on your activities.
UV exposure in Whittier during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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