Weather in Salt Lake City in July

Shoulder season. July sits in between. You will get good days and you will lose some. Highs average 33.6 °C, lows 19 °C, and rain falls on 5 days — nothing in the month is working against you.

July ranks 7 of 12 in Salt Lake City: past the worst of the year but short of September, which is the month to book if the dates are open.

Rain falls on only 5 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 33.6 °C days and 19 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 11 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest July day reached 40.8 °C and the coldest night fell to 10.2 °C.

July is moderately variable: 1 mm in the driest year against 39 mm in the wettest, around an average of 17 mm. Roughly two Julys in three land near that average, and the third does something else entirely.

Wind is light at 4.2 km/h, so the temperature on the page is close to the temperature on your skin, and the air is dry at 39% humidity, which makes the heat far more bearable than the same figure somewhere humid — and dehydrates you faster than you expect.

How July sits in the year

This is a turning point in the year — June and August sit on opposite sides of it, so the month contains the change rather than following it.

Daylight in July

July is at or near the longest days of Salt Lake City's year: 14.8 hours of daylight, losing 0.6 hours across the month. Evenings are the real gain — dinner outdoors still happens in full light.

An inland climate

With no coast nearby, the year swings a fair way — 39.5 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage. At 1299 m the air is thin enough to matter — sun that burns faster than the temperature suggests, and nights that cool off quickly. Within July itself the daily swing is 14.6 °C, so mornings and afternoons need different clothes.

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.

July in Salt Lake City versus nearby

If Salt Lake City is one option among several, the nearby comparison is worth making. Park City is a better bet in July — 5.1 °C cooler, 3 days more rain. Moab is the weaker option in July — 3.5 °C warmer, 3 days more rain.

So: July is a compromise. September is 27 points better and is what Salt Lake City is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Salt Lake City

See all twelve months in Salt Lake City, or where else to go in July.