Ann Arbor

Planning your day in Ann Arbor? Check out the latest weather data, forecasts, and visual charts right here to ensure your stay is as comfortable as possible.

Located in the USA, the city of Ann Arbor features a humid continental climate characterized by four distinct seasons. Visitors should expect significant temperature fluctuations throughout the year, allowing them to enjoy various weather conditions depending on when they travel.

Winters in Ann Arbor are typically cold, with average temperatures below freezing, especially in January and February. Spring arrives gradually, bringing warmer temperatures and increased precipitation, particularly in April. Summers are warm and pleasant, with peak temperatures in July and August, creating comfortable conditions for outdoor activities. Autumn is marked by a gradual drop in temperature and colorful scenery, preparing the city for winter. Precipitation is distributed relatively evenly throughout the year, though it is not heavy, with a slight increase during the summer and spring months.

Overall, Ann Arbor's climate offers a diverse range of experiences, from snowy winter days to warm summer evenings. The warmest months are July and August, with average temperatures above +20°C, while January and February are the coldest, with temperatures often dropping below -5°C. The number of rainy days is relatively consistent year-round, averaging 10-14 days per month, indicating regular but moderate precipitation.

The weather in Ann Arbor is characterized by distinct seasons and a significant annual temperature range. The coldest month is traditionally January, with an average temperature of around -2.9°C and nightly lows that can drop to -6.1°C. Daytime highs in January barely reach 0.3°C. In contrast, July brings the hottest weather: the average temperature rises to 23.1°C, and daytime peaks often reach 27.8°C, creating a truly summery atmosphere.

Summer months in Ann Arbor—June, July, and August—are warm and comfortable. Average daytime temperatures range from 26.1°C in June to 27.8°C in July. Summer nights remain pleasantly warm, with average minimum temperatures between 16.1°C and 18.4°C. This is an ideal time for outdoor activities. Daily temperature fluctuations in summer are approximately 9-10°C, meaning warm days and cooler evenings.

The winter period, covering December, January, and February, brings frosty weather to Ann Arbor. Average monthly temperatures during this time range from -2.9°C in January to 0.8°C in December. Nighttime temperatures regularly drop well below freezing, reaching -6.1°C in January and -5.9°C in February. Daytime highs in winter often hover around or slightly above freezing, such as 0.3°C in January and 3.7°C in December. The difference between day and night temperatures in winter is somewhat smaller than in summer but still noticeable, at around 6-8°C.

Precipitation in Ann Arbor is distributed relatively evenly throughout the year, with no distinct dry or rainy season. The highest amount of precipitation, averaging 4 mm, occurs in July. Most other months receive between 2 and 3 mm. The fewest wet days are seen in February (about 9 days), although it does not differ significantly in total precipitation volume.

The nature of precipitation changes with the season. In winter, especially from December to February, when average temperatures drop below freezing (January: -2.9°C, February: -1.6°C, December: 0.8°C), precipitation most often falls as snow. In spring and autumn, both rain and sleet are possible, particularly in transitional months like March and November. In summer, from June to August, precipitation falls primarily as rain.

Precipitation frequency is quite stable. On average, the number of days with precipitation ranges from 9 days in February to 14 days in April. This means there is a chance of rain or snow in almost any month of the year. For example, in April, one of the wettest months in terms of rainy days, precipitation is expected on about 14 days, while in July, the month with the highest volume of precipitation, it can be expected on about 13 days.

When planning a trip to Ann Arbor, it is important to consider its distinct seasonal changes, which directly affect your choice of wardrobe. This USA city has a continental climate, so layering will be your best friend at any time of year, allowing you to adapt to temperature changes throughout the day. Regardless of the season, comfortable walking shoes are a must, as Ann Arbor is a very walkable city. Given that an average of 10-14 days per month can have precipitation, a compact umbrella or a light waterproof jacket will be useful additions to your luggage.

Winter in Ann Arbor, from December to February, is quite cold, with average temperatures below freezing (around -2.9°C in January, with lows reaching -6°C) and frequent snowfall. For this period, you will need a warm winter coat, hat, scarf, gloves, and waterproof footwear. Don't forget thermal layers and warm sweaters. In transitional months like March and November, the weather can be fickle, ranging from cool to cold, so layered clothing, including a windbreaker or a mid-season jacket, will be very handy.

Summer months, from June to August, are warm and pleasant in Ann Arbor, with average temperatures around 21-23°C, sometimes rising to 28°C. For summer, light clothing made of natural fabrics, shorts, t-shirts, and dresses are suitable. Be sure to bring sunscreen, a hat, and sunglasses. Evenings can be cooler, so a light sweater or cardigan will come in useful. In spring (April-May) and autumn (September-October), the weather is mild but variable. It is recommended to bring both light items and warmer pieces, such as a fleece or jacket, and be prepared for potential rain.