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 15.9 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 18.1 °C by the end of January.
The climate of Pomona in January is notably wet, with an average of 11 rainy days, and a total of 146.5 mm of precipitation.
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Temperatures
Rain 🌧️
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20
Dry days
11
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
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January weather in Pomona day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jan. 1 |  Partly cloudy | 17° /10° | 64.5 mm | 3 | |
| Jan. 2 |  Overcast | 18° /9° | 2.5 mm | 3 | |
| Jan. 3 |  Moderate rain | 15° /10° | 8.7 mm | 2 | |
| Jan. 4 | Overcast | 15° /7° | 29.9 mm | 3 | |
| Jan. 5 |  Sunny | 16° /8° | 13.7 mm | 3 | |
| Jan. 6 | Sunny | 17° /9° | 0 mm | 4 | |
| Jan. 7 |  Patchy rain possible | 13° /7° | 0.5 mm | 2 | |
| Jan. 8 |  Cloudy | 14° /6° | 0.1 mm | 3 | |
| Jan. 9 | Sunny | 17° /7° | 0 mm | 4 | |
| Jan. 10 | Sunny | 17° /6° | 0 mm | 3 | |
| Jan. 11 | Sunny | 18° /7° | 0 mm | 3 | |
| Jan. 12 | Sunny | 17° /7° | 0 mm | 4 | |
| Jan. 13 | Sunny | 18° /7° | 0 mm | 3 | |
| Jan. 14 | Sunny | 20° /9° | 0 mm | 4 | |
| Jan. 15 | Sunny | 20° /10° | 0 mm | 3 | |
| Jan. 16 | Sunny | 21° /10° | 0 mm | 4 | |
| Jan. 17 | Partly cloudy | 16° /8° | 0 mm | 3 | |
| Jan. 18 | Partly cloudy | 16° /7° | 0 mm | 5 | |
| Jan. 19 | Sunny | 20° /9° | 0 mm | 3 | |
| Jan. 20 | Light rain shower | 19° /9° | 1.4 mm | 3 | |
| Jan. 21 | Overcast | 15° /8° | 3 mm | 3 | |
| Jan. 22 | Cloudy | 16° /9° | 9.2 mm | 3 | |
| Jan. 23 | Cloudy | 16° /9° | 0 mm | 3 | |
| Jan. 24 | Overcast | 17° /9° | 1.3 mm | 4 | |
| Jan. 25 | Overcast | 15° /7° | 0 mm | 3 | |
| Jan. 26 | Sunny | 15° /8° | 4.6 mm | 3 | |
| Jan. 27 | Sunny | 18° /9° | 7.2 mm | 3 | |
| Jan. 28 | Overcast | 18° /11° | 0 mm | 3 | |
| Jan. 29 | Overcast | 20° /10° | 0 mm | 4 | |
| Jan. 30 | Overcast | 20° /9° | 0 mm | 3 | |
| Jan. 31 | Partly cloudy | 21° /10° | 0 mm | 4 | |
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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 11 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 11 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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