Highest Temperatures in Lethbridge History

This is a list of the 20 highest temperatures ever recorded in Lethbridge, Alberta history from 1938–2024 based on data from the NOAA.

• Highest temperatures by year
• Lowest temperatures all-time
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Rank	Temperature	Date
1	40.5 °C	August 10, 2018
2	39.4 °C	July 10, 1973
3	38.9 °C	August 3, 2001
3	38.9 °C	July 19, 1960
3	38.9 °C	July 28, 1939
6	38.3 °C	August 5, 1961
6	38.3 °C	June 23, 1941
8	37.9 °C	July 4, 2001
9	37.8 °C	July 23, 2007
9	37.8 °C	July 23, 2003
9	37.8 °C	July 18, 1941
12	37.6 °C	August 10, 2003
12	37.6 °C	August 5, 1983
14	37.5 °C	August 17, 2023
15	37.4 °C	July 1, 2021
15	37.4 °C	August 6, 1983
17	37.3 °C	July 29, 2007
18	37.2 °C	July 24, 2023
18	37.2 °C	August 12, 1940
18	37.2 °C	July 22, 1938