- Latitude: 43.109
- Longitude: -88.031
High Temperatures
On March 21 in this location the average high temperature is 44.0 °F (6.7 °C). The lowest recored high temperature was 15.1 °F (-9.4 °C) in 1965 and the highest recored high temperature was 84.0 °F (28.9 °C) in 2012. The high temperature is usually* between 37.3 °F (2.9 °C) and 50.8 °F (10.4 °C). About a quarter of the time, the high temperature is less than 37.3 °F (2.9 °C), and another quarter of the time, the high temperature is greater than and 50.8 °F (10.4 °C). About 95% of the time, the high temperature has been between 24.5 °F (-4.2 °C) and 63.6 °F (17.5 °C).
Low Temperatures
On March 21 in this location the average low temperature is 28.4 °F (-2.0 °C). The lowest recored low temperature was 1.9 °F (-16.7 °C) in 1965 and the lowest recored low temperature was 59.0 °F (15.0 °C) in 2012. The low temperature is usually* between 23.0 °F (-5.0 °C) and 33.8 °F (1.0 °C). About a quarter of the time, the low temperature is less than 23.0 °F (-5.0 °C), and another quarter of the time, the low temperature is greater than and 33.8 °F (1.0 °C). About 95% of the time, the low temperature has been between 12.8 °F (-10.7 °C) and 44.0 °F (6.7 °C).
Frost
On March 21 in this location expect the temperatures to drop below freezing for a risk of frost about 67.5% 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:
- GENERAL MITCHELL INTERNATIONA — Integrated Surface Dataset (ISD) station ID: 726400 — Weather Bureau Army Navy (WBAN): 14839 — from year 1948 to 2025
- LAWRENCE J TIMMERMAN AIRPORT — Integrated Surface Dataset (ISD) station ID: 726405 — Weather Bureau Army Navy (WBAN): 94869 — from year 1973 to 2025
- WAUKESHA COUNTY AIRPORT — Integrated Surface Dataset (ISD) station ID: 726409 — Weather Bureau Army Navy (WBAN): 04897 — from year 2006 to 2025
- MILWAUKEE — Integrated Surface Dataset (ISD) station ID: 997342 — from year 2006 to 2025
- WAUKESHA CO — Integrated Surface Dataset (ISD) station ID: 726409 — from year 1998 to 2005
- LAWRENCE J TIMMERMAN — Integrated Surface Dataset (ISD) station ID: 726405 — from year 2000 to 2004
- MILWAUKEE COAST GUARD LIGHT S — Integrated Surface Dataset (ISD) station ID: 726407 — from year 1977 to 1994
- MILWAUKEE NB SIDE PO — Weather Bureau Army Navy (WBAN): 14839 — from year 1965 to 1972
- MILWAUKEE TIMMERMAN — Weather Bureau Army Navy (WBAN): 94869 — from year 1968 to 1972