Historical weather data, all-time temperature records, and monthly climate averages for Ann Arbor, MI. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Ann Arbor is a coin-flip kind of day — temperatures average a mild 52° high, but 132 years of data show it can swing hard, from a brutal 15° low in 1954 to a 74° stunner back in 1928. There's nearly a 1-in-2 chance of some precipitation today, with a lingering 8% shot at snow.
Ann Arbor has seen it all, from a scorching 105° on July 24, 1934 to a bone-chilling -22° on January 19, 1994 — a range of 127 degrees between its extremes. Its wettest single day dumped 4.54 inches of rain on August 6, 1998, while December 1, 1974 buried the city under 15.8 inches of snow.
Ann Arbor peaks in mid-July with average highs of 84°, then bottoms out in late January and early February around a frigid 30°. If you're watching the calendar for rain, late June into early July is the wettest stretch of the year, averaging nearly an inch of precipitation per week.