Highest Daily Low Temperatures in Walla Walla History

This is a list of the hottest daily low temperatures ever recorded in Walla Walla, Washington history from 1949–2024 based on data from the NOAA.

Highest temperatures all-time

Record for the highest daily low temperature in Walla Walla

The highest low temperature for a calendar day in Walla Walla, Washington history was 80 °F which has happened 4 times, most recently on Wednesday June 30, 2021.

Rank	Temperature	Date
1	80 °F	June 30, 2021
1	80 °F	July 13, 2002
1	80 °F	July 23, 1994
1	80 °F	July 6, 1968
5	79 °F	August 18, 2020
5	79 °F	July 10, 1975
7	78 °F	August 16, 2023
7	78 °F	June 29, 2021
7	78 °F	June 28, 2021
7	78 °F	July 2, 2013
7	78 °F	August 10, 1984
7	78 °F	July 25, 1962
13	77 °F	August 19, 2022
13	77 °F	June 28, 2015
13	77 °F	July 12, 1990
13	77 °F	August 14, 1977
13	77 °F	August 13, 1977
13	77 °F	August 4, 1977
13	77 °F	July 15, 1955
20	76 °F	July 31, 2020
20	76 °F	August 1, 2015
20	76 °F	July 4, 2015
20	76 °F	June 27, 2015
20	76 °F	July 30, 2014
20	76 °F	August 3, 2009
20	76 °F	July 23, 2006
20	76 °F	July 23, 2003
20	76 °F	July 12, 2002
20	76 °F	August 9, 1990
20	76 °F	July 29, 1982
20	76 °F	July 6, 1975
20	76 °F	August 10, 1963
20	76 °F	August 13, 1961
20	76 °F	July 14, 1961
20	76 °F	July 23, 1959