Fontana (CA)
January
Weather in Fontana, California for January 2027
Your guide to Fontana weather in January - trends and predictions
In general, the average temperature in Fontana at the beginning of January is 14.6 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 16.7 °C by the end of January.
With an average of 4 rainy days, Fontana experiences minimal rainfall in January.
Is January a good time to visit Fontana? check out the best time to travel to Fontana page.
✨ Is January a good time to visit Fontana? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
27
Dry days
4
Rainy days
0
Snow days
16°/7°
Temperatures
11 km/h
Avg max wind
47 %
Avg humidity
Fontana Weather January
Move between months or click on a day
Temperatures trend during January in Fontana
See the weather trend as well as the moving average line
January weather in Fontana day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jan. 1 |  Heavy rain | 16° /8° | 85.9 mm | 2.9 | |
| Jan. 2 |  Light rain | 17° /10° | 4.1 mm | 2.9 | |
| Jan. 3 | Light rain | 13° /10° | 6.5 mm | 2 | |
| Jan. 4 |  Moderate rain | 15° /7° | 21.8 mm | 2.9 | |
| Jan. 5 | Light rain | 15° /8° | 9.5 mm | 2.9 | |
| Jan. 6 |  Sunny | 15° /8° | 0 mm | 2.9 | |
| Jan. 7 |  Patchy rain possible | 11° /6° | 0.6 mm | 2 | |
| Jan. 8 |  Partly cloudy | 12° /5° | 0 mm | 3 | |
| Jan. 9 | Sunny | 15° /6° | 0 mm | 3 | |
| Jan. 10 | Sunny | 15° /5° | 0 mm | 3 | |
| Jan. 11 | Sunny | 15° /6° | 0.1 mm | 3 | |
| Jan. 12 | Sunny | 15° /5° | 0 mm | 3 | |
| Jan. 13 | Sunny | 16° /6° | 0 mm | 3 | |
| Jan. 14 | Sunny | 17° /7° | 0 mm | 3 | |
| Jan. 15 | Sunny | 18° /8° | 0 mm | 3 | |
| Jan. 16 | Sunny | 20° /9° | 0 mm | 3.2 | |
| Jan. 17 | Partly cloudy | 14° /7° | 0 mm | 3 | |
| Jan. 18 | Sunny | 20° /9° | 0 mm | 3.3 | |
| Jan. 19 | Sunny | 20° /8° | 0 mm | 3 | |
| Jan. 20 | Patchy rain possible | 18° /8° | 1.6 mm | 3 | |
| Jan. 21 | Light rain | 15° /7° | 3.9 mm | 3 | |
| Jan. 22 | Moderate rain | 15° /9° | 8 mm | 3 | |
| Jan. 23 | Patchy rain possible | 14° /8° | 0 mm | 3 | |
| Jan. 24 | Patchy rain possible | 16° /7° | 1.2 mm | 3 | |
| Jan. 25 |  Overcast | 14° /6° | 0 mm | 2 | |
| Jan. 26 | Light rain | 14° /6° | 7.5 mm | 3 | |
| Jan. 27 | Moderate rain | 16° /7° | 12.4 mm | 3 | |
| Jan. 28 | Overcast | 16° /8° | 0 mm | 3 | |
| Jan. 29 | Partly cloudy | 18° /8° | 0 mm | 3.8 | |
| Jan. 30 | Overcast | 18° /9° | 0 mm | 3 | |
| Jan. 31 | Partly cloudy | 20° /9° | 0 mm | 3.9 | |
| Next | |||||
Important Notice
Our weather forecast for Fontana in January 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 Fontana forecast closer to your planned date for the most up-to-date weather information.
Change Month
Fontana in January - FAQ
What are the expected maximum and minimum temperatures in Fontana during January?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Fontana during January?
Significant rainfall exceeding 163.2 mm is expected in Fontana during January, occurring over more than 4 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Fontana during January?
The average wind speed in Fontana during January is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in Fontana
Explore the daily rainfall trends and prepare for Fontanas January weather 💧
Typically, Fontana has 4 rainy days in January with a total of 163.2 mm of rainfall.
Quick links
More Fontana weather pages
You are here
Where is Fontana?Get accurate weather forecasts for Fontana, located at latitude 34.092 and longitude -117.435. Stay updated with localized weather information tailored for Fontana.
Found a mistake?
We appreciate your attention to details. Tell us here.