Climate averages 1991–2020
Ann Arbor weather
in April.
A cool, wet month: the 7th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Ann Arbor: daytime highs average 13.5°C and nights cool to about 3.0°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 92 mm of rain on roughly 12 days, which makes April a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 20 min on an average April day.
The nearest other city in this atlas is Canton (Michigan), United States (22 km away). In April its highs average 13.8°C, about as warm as Ann Arbor, with 90 mm of rain.
Among the 498 cities listed in the United States, Ann Arbor ranks joint 427th of 498 for the warmest April highs and joint 292nd of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Ann Arbor is 5.9°C cooler than that mean.
From April to May, average highs rise by 6.3°C to 19.8°C, and monthly rainfall rises from 92 mm to 99 mm.
The annual picture
April in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Ann Arbor climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.6°C-8.3°C | -8.3°C | 61 | 9.7 | 9.59 h |
| February | 1.0°C-7.9°C | -7.9°C | 53 | 8.3 | 10.511 h |
| March | 6.7°C-3.1°C | -3.1°C | 65 | 9.6 | 11.912 h |
| April, selected | 13.5°C3.0°C | 3.0°C | 92 | 11.8 | 13.313 h |
| May | 19.8°C9.7°C | 9.7°C | 99 | 12.5 | 14.615 h |
| June | 24.8°C15.2°C | 15.2°C | 93 | 10.5 | 15.215 h |
| July | 27.0°C17.7°C | 17.7°C | 84 | 10.8 | 14.915 h |
| August | 26.0°C17.1°C | 17.1°C | 83 | 10.3 | 13.914 h |
| September | 22.3°C13.3°C | 13.3°C | 69 | 8.6 | 12.513 h |
| October | 15.3°C7.1°C | 7.1°C | 68 | 9.3 | 11.111 h |
| November | 8.0°C0.8°C | 0.8°C | 67 | 9.0 | 9.810 h |
| December | 2.0°C-4.3°C | -4.3°C | 57 | 9.0 | 9.29 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Canton (Michigan), United States in AprilUnited States · 22 kmHigh 13.8°C · Low 3.3°C · 90 mm rain
- Westland in AprilUnited States · 28 kmHigh 13.7°C · Low 3.5°C · 90 mm rain
- Livonia in AprilUnited States · 33 kmHigh 13.8°C · Low 3.6°C · 91 mm rain
- Farmington Hills in AprilUnited States · 38 kmHigh 13.4°C · Low 3.2°C · 92 mm rain
- Dearborn in AprilUnited States · 47 kmHigh 13.5°C · Low 3.8°C · 91 mm rain
- Southfield in AprilUnited States · 48 kmHigh 13.3°C · Low 3.5°C · 90 mm rain
- Waterford in AprilUnited States · 54 kmHigh 13.1°C · Low 2.9°C · 92 mm rain
- Detroit in AprilUnited States · 57 kmHigh 13.0°C · Low 4.1°C · 91 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Ann Arbor) is explained once on the Ann Arbor year overview and on the Sources, method and limits page.