Interior Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Interior.

Climate overview of Interior

Temperatures in Interior, Badlands National Park, United States of America, vary greatly throughout the year. July is the hottest month at 34°C (93°F), while December is the coldest at 2°C (36°F).

With around 481 mm (19 in) of annual rain/snowfall, Interior has a fairly dry climate. However, it has a distinct dry season from November to March. The wettest month is June, while January sees the least rain.

Interior Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Interior — and find the best time to visit.

Monthly Temperature in Interior

The climate in Interior is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a very warm 34°C (93°F) in July. In December, the coolest month of the year, temperatures drop to a chilly 2°C (36°F).

At night, temperatures range from around 18°C (64°F) in July to -10°C (14°F) in December.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Interior

With annual rain/snowfall averaging 481 mm (19 in), Interior maintains relatively low precipitation levels throughout the seasons. Interior can be quite wet during June, receiving approximately 92 mm (3.6 in) of precipitation over 12 rainy days.

In contrast, during the driest month (January), you will experience much drier conditions, with 8.2 mm (0.3 in) of precipitation spread across 4 snowy days days. For more details, please visit our Interior Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Best Time to Visit Interior

Interior's weather is most enjoyable during May, June, September and October, with comfortable temperatures from 18°C (65°F) to 29°C (83°F). The moderate conditions ensure pleasant weather for exploring the area. Expect varied weather during this period with rainfall between 31 mm (1.2 in) and 92 mm (3.6 in), providing a good balance of sunny and rainy days.

Wondering where to travel based on your weather preferences? Our recommendation tool helps you find destinations with your ideal climate conditions. Use our weather planner to find your perfect destination.

Frequently asked questions about the climate in Interior

What is the best time to visit Interior?

May, June and September typically offer the most optimal weather in Interior. In contrast, January, February, July and December tend to have less optimal conditions. Interior has a distinct dry season from November to March.

What temperatures can I expect in Interior?

Daytime highs range from 2°C (36°F) in December to 34°C (93°F) in July. Nighttime lows range from -10°C (14°F) to 18°C (64°F). Temperatures vary considerably through the year.

How much rain does Interior get?

Annual rainfall is around 481 mm (19 in). June is the wettest month with 92 mm (3.6 in), while January is the driest with 8.2 mm (0.3 in).

Interior 3-Day Forecast

Interior 3-Day Forecast

Interior on the map

Interior is highlighted — select any city to see its climate.

Popular this month

Where to go in July — average daytime high across popular destinations.

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