August Weather in Ann Arbor

Last updated: March 2, 2024

The weather in Ann Arbor, United States, during August is characterized by an average temperature of 22°C (72°F). Highs can soar to 32°C (90°F), while lows may dip to 11°C (53°F). Typically, the humidity level in Ann Arbor throughout August hovers around 80%.

11°C (53°F)

Minimum temperature

22°C (72°F)

Average temperature

32°C (90°F)

Maximum temperature

80%

Humidity

Precipitation and Sunshine hours

In August, Ann Arbor averages 71 mm (2.8 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 13 hours 47 minutes of daylight, with the sun shining for approximately 10 hours 53 minutes each day. Additionally, there is a 45% probability of sunny days during this period.

71 mm (2.8 inches)

Precipitation

11 rainy days

Rainy days

10 hours 53 minutes

Sunshine hours

45%

Chance of sun

UV Index

In August, the UV Index in Ann Arbor reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00
UVI	1	1	2	4	6	8	9	9	8	6	4	2	1
Exposure	Low			Moderate	High	VeryHigh				High	Moderate	Low
Time to burn	45 min			30 min	25 min	15 min				25 min	30 min	45 min