Yellowstone National Park Temperature by Month
The average annual maximum temperature in Yellowstone National Park, United States of America is 9°C (48°F), with daytime highs ranging from -4°C (25°F) in January to 23°C (73°F) in July. This page covers monthly averages, day-night differences, and how Yellowstone National Park compares to cities worldwide.
Yellowstone National Park Monthly Temperatures
In Yellowstone National Park, temperatures can shift dramatically between warm in summer and very cold in winter. Nights follow the same pattern, with lows ranging from 4°C (39°F) in July to -16°C (3°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Yellowstone National Park 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:
Daily Historical Temperatures
44-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in July
Historical Yellowstone National Park Temperatures: 1976-2026
Browse day-by-day temperature records for Yellowstone National Park spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Yellowstone National Park vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Yellowstone National Park vs World: Temperature Compared
Yellowstone National Park's average annual maximum temperature is 9°C (48°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
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 Yellowstone National Park's weather — including monthly rainfall, sunshine hours, and humidity — visit our Yellowstone National Park climate page.
