Pomona (CA)
January
Weather in Pomona, California for January 2027
Your guide to Pomona weather in January - trends and predictions
In general, the average temperature in Pomona at the beginning of January is 15.6 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 18 °C by the end of January.
With an average of 4 rainy days, Pomona experiences minimal rainfall in January.
Is January a good time to visit Pomona? check out the best time to travel to Pomona page.
✨ Is January a good time to visit Pomona? – Ask the AI Weatherman
Temperatures
Rain 🌧️
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27
Dry days
4
Rainy days
0
Snow days
17°/9°
Temperatures
11 km/h
Avg max wind
48 %
Avg humidity
Pomona Weather January
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Temperatures trend during January in Pomona
See the weather trend as well as the moving average line
January weather in Pomona day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jan. 1 |  Heavy rain | 17° /10° | 64.5 mm | 2.9 | |
| Jan. 2 |  Light rain | 18° /10° | 2.5 mm | 2.9 | |
| Jan. 3 |  Moderate rain | 14° /10° | 8.7 mm | 2 | |
| Jan. 4 | Heavy rain | 15° /8° | 29.9 mm | 2.9 | |
| Jan. 5 | Moderate rain | 16° /9° | 13.7 mm | 2.9 | |
| Jan. 6 |  Sunny | 17° /9° | 0 mm | 3 | |
| Jan. 7 |  Patchy rain possible | 13° /7° | 0.5 mm | 2 | |
| Jan. 8 |  Cloudy | 14° /6° | 0.1 mm | 3 | |
| Jan. 9 | Sunny | 17° /8° | 0 mm | 3 | |
| Jan. 10 | Sunny | 17° /7° | 0 mm | 3 | |
| Jan. 11 | Sunny | 18° /7° | 0 mm | 3 | |
| Jan. 12 | Sunny | 17° /7° | 0 mm | 3.1 | |
| Jan. 13 | Sunny | 18° /7° | 0 mm | 3 | |
| Jan. 14 | Sunny | 19° /9° | 0 mm | 3.2 | |
| Jan. 15 | Sunny | 20° /10° | 0 mm | 3 | |
| Jan. 16 | Sunny | 21° /10° | 0 mm | 3.2 | |
| Jan. 17 |  Partly cloudy | 16° /9° | 0 mm | 3 | |
| Jan. 18 | Partly cloudy | 20° /8° | 0 mm | 3.3 | |
| Jan. 19 | Sunny | 20° /10° | 0 mm | 3 | |
| Jan. 20 | Light rain shower | 19° /9° | 1.4 mm | 3 | |
| Jan. 21 | Light rain | 15° /8° | 3 mm | 3 | |
| Jan. 22 | Light rain | 16° /9° | 9.2 mm | 3 | |
| Jan. 23 | Cloudy | 16° /10° | 0 mm | 3 | |
| Jan. 24 | Patchy rain possible | 16° /9° | 1.3 mm | 3.5 | |
| Jan. 25 |  Overcast | 15° /7° | 0 mm | 3 | |
| Jan. 26 | Light rain | 15° /8° | 4.6 mm | 3 | |
| Jan. 27 | Light rain | 18° /10° | 7.2 mm | 3 | |
| Jan. 28 | Overcast | 18° /11° | 0 mm | 3 | |
| Jan. 29 | Overcast | 20° /10° | 0 mm | 3.8 | |
| Jan. 30 | Overcast | 20° /10° | 0 mm | 3 | |
| Jan. 31 | Partly cloudy | 21° /10° | 0 mm | 3.9 | |
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Important Notice
Our weather forecast for Pomona 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 Pomona forecast closer to your planned date for the most up-to-date weather information.
Change Month
Pomona in January - FAQ
What are the expected maximum and minimum temperatures in Pomona during January?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Pomona during January?
Significant rainfall exceeding 146.5 mm is expected in Pomona during January, occurring over more than 4 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Pomona during January?
The average wind speed in Pomona during January is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in Pomona
Explore the daily rainfall trends and prepare for Pomonas January weather 💧
Typically, Pomona has 4 rainy days in January with a total of 146.5 mm of rainfall.
UV exposure in Pomona during January
Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️
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