- Latitude: 42.69
- Longitude: -88.304
High Temperatures
On May 21 in this location the average high temperature is 73.0 °F (22.8 °C). The lowest recored high temperature was 49.1 °F (9.5 °C) in 2025 and the highest recored high temperature was 96.1 °F (35.6 °C) in 1985. The high temperature is usually* between 65.6 °F (18.7 °C) and 80.3 °F (26.8 °C). About a quarter of the time, the high temperature is less than 65.6 °F (18.7 °C), and another quarter of the time, the high temperature is greater than and 80.3 °F (26.8 °C). About 95% of the time, the high temperature has been between 51.6 °F (10.9 °C) and 94.3 °F (34.6 °C).
Low Temperatures
On May 21 in this location the average low temperature is 51.2 °F (10.7 °C). The lowest recored low temperature was 28.4 °F (-2.0 °C) in 2002 and the lowest recored low temperature was 78.1 °F (25.6 °C) in 1991. The low temperature is usually* between 44.3 °F (6.9 °C) and 58.1 °F (14.5 °C). About a quarter of the time, the low temperature is less than 44.3 °F (6.9 °C), and another quarter of the time, the low temperature is greater than and 58.1 °F (14.5 °C). About 95% of the time, the low temperature has been between 31.3 °F (-0.4 °C) and 71.2 °F (21.8 °C).
Frost
On May 21 in this location expect the temperatures to drop below freezing for a risk of frost about 2.9% 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:
- BURLINGTON MUNICIPAL ARPT — Integrated Surface Dataset (ISD) station ID: 722059 — Weather Bureau Army Navy (WBAN): 04866 — from year 2006 to 2025
- KENOSHA REGIONAL AIRPORT — Integrated Surface Dataset (ISD) station ID: 726505 — Weather Bureau Army Navy (WBAN): 04845 — from year 2006 to 2025
- BURLINGTON MUNI — Integrated Surface Dataset (ISD) station ID: 722059 — from year 1984 to 2005
- KENOSHA RGNL — Integrated Surface Dataset (ISD) station ID: 726505 — from year 1997 to 2005