- Latitude: 42.223
- Longitude: -83.744
High Temperatures
On March 21 in this location the average high temperature is 48.2 °F (9.0 °C). The lowest recored high temperature was 21.9 °F (-5.6 °C) in 1965 and the highest recored high temperature was 87.1 °F (30.6 °C) in 2012. The high temperature is usually* between 40.5 °F (4.7 °C) and 55.9 °F (13.3 °C). About a quarter of the time, the high temperature is less than 40.5 °F (4.7 °C), and another quarter of the time, the high temperature is greater than and 55.9 °F (13.3 °C). About 95% of the time, the high temperature has been between 25.8 °F (-3.4 °C) and 70.5 °F (21.4 °C).
Low Temperatures
On March 21 in this location the average low temperature is 29.0 °F (-1.6 °C). The lowest recored low temperature was 12.9 °F (-10.6 °C) in 2024 and the lowest recored low temperature was 52.0 °F (11.1 °C) in 2012. The low temperature is usually* between 23.6 °F (-4.7 °C) and 34.5 °F (1.4 °C). About a quarter of the time, the low temperature is less than 23.6 °F (-4.7 °C), and another quarter of the time, the low temperature is greater than and 34.5 °F (1.4 °C). About 95% of the time, the low temperature has been between 13.3 °F (-10.4 °C) and 44.8 °F (7.1 °C).
Frost
On March 21 in this location expect the temperatures to drop below freezing for a risk of frost about 64.4% of the time.
Data Source(s)
The data used to compute the average high/low temperatures for this location were taken from the following stations:
- WILLOW RUN AIRPORT — Integrated Surface Dataset (ISD) station ID: 725376 — Weather Bureau Army Navy (WBAN): 14853 — from year 1973 to 2025
- ANN ARBOR MUNICIPAL ARPT — Integrated Surface Dataset (ISD) station ID: 725374 — Weather Bureau Army Navy (WBAN): 94889 — from year 2006 to 2025
- WILLOW RUN — Integrated Surface Dataset (ISD) station ID: 725376 — from year 2000 to 2003
- DETROIT WILLOW RUN AP — Weather Bureau Army Navy (WBAN): 14853 — from year 1948 to 1968