Grand Canyon (AZ) Temperature by Month

The average annual maximum temperature in Grand Canyon, Arizona, United States of America is 20°C (68°F), with daytime highs ranging from 8°C (46°F) in December to 32°C (90°F) in July. This page covers monthly averages, day-night differences, and how Grand Canyon compares to cities worldwide.

In Grand Canyon, temperatures can shift dramatically between very warm in summer and cold in winter. Nights follow the same pattern, with lows ranging from 16°C (61°F) in July to -5°C (23°F) in December.

The chart below illustrates the average maximum day and minimum night temperatures in Grand Canyon by month:

Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM.

The chart below shows the average temperature throughout the year:

Grand Canyon's average annual maximum temperature is 20°C (68°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

Queenstown, New Zealand averages 10°C (50°F) annually, remember seasons are flipped, so its coldest months fall in June and July.

New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.

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

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.

Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.

For more on Grand Canyon's weather, including monthly rainfall, sunshine hours, and humidity, visit our Grand Canyon climate page.