Highest Daily Low Temperatures in Ephrata History

This is a list of the hottest daily low temperatures ever recorded in Ephrata, Washington history from 1903–2024 based on data from the NOAA.

Highest temperatures all-time

Record for the highest daily low temperature in Ephrata

The highest low temperature for a calendar day in Ephrata, Washington history was 85 °F which happened on Friday, July 11, 1975.

Rank	Temperature	Date
1	85 °F	July 11, 1975
2	83 °F	July 17, 1941
2	83 °F	July 16, 1911
4	82 °F	August 19, 2022
4	82 °F	June 29, 2021
4	82 °F	August 8, 1971
4	82 °F	July 28, 1939
4	82 °F	July 12, 1926
4	82 °F	July 1, 1924
10	81 °F	July 4, 2015
10	81 °F	August 8, 1982
12	80 °F	July 31, 2021
12	80 °F	July 13, 2021
12	80 °F	June 30, 2021
12	80 °F	July 16, 1941
12	80 °F	July 2, 1924
12	80 °F	July 17, 1911
18	79 °F	August 12, 2015
18	79 °F	August 20, 1977
18	79 °F	August 14, 1977
18	79 °F	July 6, 1975
18	79 °F	June 22, 1973
18	79 °F	July 6, 1968
18	79 °F	July 19, 1960
18	79 °F	August 22, 1958
18	79 °F	July 15, 1941
18	79 °F	July 26, 1939
18	79 °F	July 15, 1938
18	79 °F	August 8, 1930
18	79 °F	August 1, 1929
18	79 °F	July 31, 1929
18	79 °F	July 30, 1927
18	79 °F	July 17, 1925