January in Fresno averages a daily high of 14°C with nights around 4.6°C. Expect roughly 7.9 wet days totalling 55.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Fresno is April.
Based on FRESNO YOSEMITE INTERNATIONAL, CA US (5.9km), 1995–2024. 30 years of January data.