Salt Lake City (UT) Temperature by Month

Salt Lake City, Utah, United States of America has an average annual maximum temperature of 18°C (64°F), ranging from 3°C (37°F) in January to 33°C (91°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.

In Salt Lake City, temperatures can shift dramatically between very warm in summer and cold in winter. Nights follow the same pattern, with lows ranging from 19°C (66°F) in July to -6°C (21°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Salt Lake City by month:

Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. July, the warmest month of the year, receives 381 hours of sunshine.

The chart below shows the average temperature throughout the year:

Salt Lake City's average annual maximum temperature is 18°C (64°F). To put that in context, here's how it compares to a few well-known destinations:

Seville, Spain averages 23°C (73°F) a year, one of the warmer cities in Western Europe, with long hot summers.

On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.

Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters, and seasons reversed compared to Europe.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.

In Salt Lake City, January is the coolest month, with average highs of 3°C (37°F) and humidity around 74%, considered high. In July, the warmest month, temperatures average 33°C (91°F) with 36% humidity, conditions that feel low. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained, so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.

For more on Salt Lake City's weather, including monthly rainfall, sunshine hours, and humidity, visit our Salt Lake City climate page.