August weather forecastAnn Arbor, MI
August
Weather in August
August maintains the summer heat in Ann Arbor, with a slight dip in temperature compared to July. The warm, sunny days continue to dominate the city's weather, inviting people to enjoy the outdoors, whether it is picnicking, hiking, or water activities. Despite the high temperatures, the amount of rainfall received during this month decreases slightly compared to the previous month. August sees a pattern consistent with its predecessor, with hot days and mild nights. Interestingly, the month shows minute changes in both High temperatures from 79.9°F (26.6°C) in July to 78.3°F (25.7°C) in August and relative humidity from 79% to 79%.Temperature
Ann Arbor's transition from July to August introduces an average high-temperature of a still warm 78.3°F (25.7°C), marking an insignificant variation from the 79.9°F (26.6°C). Ann Arbor experiences an average low-temperature of 61.2°F (16.2°C) in month of August.Humidity
In Ann Arbor, Michigan, the average relative humidity in August is 79%.Rainfall
In August, the rain falls for 15.4 days. Throughout August, 2.05" (52mm) of precipitation is accumulated. In Ann Arbor, during the entire year, the rain falls for 144.9 days and collects up to 18.82" (478mm) of precipitation.Snowfall
June through September are months without snowfall in Ann Arbor.Daylight
In August, the average length of the day is 13h and 50min.On the first day of August, sunrise is at 6:28 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 8:10 pm EDT.
Sunshine
In Ann Arbor, the average sunshine in August is 10.1h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 6 in August converts into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Ann Arbor, MI
- Average high temperature in August: 78.3°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in August: 61.2°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in August
Ann Arbor, MI
- Average pressure in August: 29.98"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Ann Arbor, MI
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in August
Ann Arbor, MI
- Average humidity in August: 79%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).
Average rainfall in August
Ann Arbor, MI
- Average rainfall in August: 2.05"
The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is December (0.87").
Average rainfall days in August
Ann Arbor, MI
- Average rainfall days in August: 15.4 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in August
Ann Arbor, MI
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Ann Arbor, MI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Ann Arbor, MI
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 10h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in August
Ann Arbor, MI
- Average sunshine days in August: 12 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in August
Ann Arbor, MI
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Ann Arbor, MI
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in August
Ann Arbor, MI
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
