Lowest Daily High Temperatures in Ephrata History

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

Lowest temperatures all-time

Record for the lowest daily high temperature in Ephrata

The lowest high temperature for a calendar day in Ephrata, Washington history was -8 °F which happened on Sunday, December 29, 1968.

Rank	Temperature	Date
1	-8 °F	December 29, 1968
2	-5 °F	December 30, 1968
2	-5 °F	February 1, 1950
4	-2 °F	February 2, 1996
4	-2 °F	December 16, 1964
4	-2 °F	January 31, 1950
7	-1 °F	January 25, 1950
8	0 °F	January 26, 1957
8	0 °F	January 29, 1950
8	0 °F	January 13, 1950
8	0 °F	January 12, 1909
8	0 °F	January 7, 1909
13	1 °F	January 14, 1950
14	2 °F	January 8, 1974
14	2 °F	January 15, 1950
16	3 °F	February 1, 1996
16	3 °F	December 29, 1990
16	3 °F	January 9, 1974
16	3 °F	December 28, 1968
16	3 °F	January 17, 1950
16	3 °F	January 10, 1909
16	3 °F	January 9, 1909
16	3 °F	January 8, 1909