Weather in Fresno in January

A good month. January is a solid month to be in Fresno. Highs average 16.1 °C, lows 5.4 °C, and rain falls on 6 days — nothing in the month is working against you.

January ranks 7 of 12 in Fresno: past the worst of the year but short of April, which is the month to book if the dates are open.

Rain falls on only 6 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 16.1 °C days and 5.4 °C nights; the spread matters more here than any single number.

What the averages hide

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest January day reached 26.6 °C and the coldest night fell to -3.9 °C, and the wettest single day dropped 50 mm — roughly 89% of the month's rain in one day.

This is the volatile part. January rainfall has ranged from 4 mm to 186 mm across the twenty years measured — a 182 mm spread around an average of 56 mm. The average is real but almost no individual January looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 5.6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 73%.

How January sits in the year

Temperatures hold steady either side: 15.6 °C in December, 16.1 here, 17.4 in February. Nothing about the timing within the month matters much.

Daylight in January

January sits at the dark end of Fresno's year — 9.9 hours of daylight against 14.7 at midsummer, gaining 0.6 hours across the month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.

An inland climate

With no coast nearby, the year swings a fair way — 35.6 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.

How busy it gets

Busy. Popular without being frantic; book the things you care about, improvise the rest.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

January in Fresno versus nearby

If Fresno is one option among several, the nearby comparison is worth making. Bakersfield is a better bet in January — 3.4 °C warmer, the same number of rain days. San Jose is close enough to be a coin toss — within a degree on temperature, 2 days more rain.

So: January works, with April the better month by 16 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Fresno

See all twelve months in Fresno, or where else to go in January.