Transit Desk

Climate

Weather in United States in August

Weather in United States, August
In August, United States sees average highs of 29.5°C (85°F) and lows of 19.9°C (68°F), with around 142 mm of rain.

United States — August

United States August
Daytime high
29.5°C (85°F)
Overnight low
19.9°C (68°F)
Rainfall
142 mm
Best-time rank
Off-peak

How August compares

United States, August vs. the annual average (2025)
This month29.5°C (85°F) / 19.9°C (68°F) · 142 mm
Yearly average19.5°C (67°F) / 9.7°C (49°F) · 108 mm

August in United States runs 10°C (18°F) warmer than the yearly average, and is wetter than the yearly average. Pack layers you can adjust through the day — mild conditions, and something waterproof — this is a wetter month.

Common questions

What is the weather like in United States in August?

Average highs of 29.5°C (85°F) and lows of 19.9°C (68°F), with around 142 mm of rain.

Is August a good time to visit United States?

It is an off-peak month for comfort in United States; May, June, September tend to be more pleasant.

Updated climate normals, 2025