Lowest Daily High Temperatures in Winthrop History

This is a list of the coldest daily high temperatures ever recorded in Winthrop, Washington history from 1906–2024 based on data from the NOAA.

Lowest temperatures all-time

Record for the lowest daily high temperature in Winthrop

The lowest high temperature for a calendar day in Winthrop, Washington history was -21 °F which happened on Monday, December 30, 1968.

Rank	Temperature	Date
1	-21 °F	December 30, 1968
2	-6 °F	December 31, 1968
3	-5 °F	December 22, 2022
3	-5 °F	December 17, 1964
5	-4 °F	December 22, 1983
5	-4 °F	January 4, 1959
7	-3 °F	December 23, 1983
7	-3 °F	January 1, 1924
9	-2 °F	December 24, 1983
10	-1 °F	January 29, 1969
10	-1 °F	January 15, 1950
10	-1 °F	January 13, 1950
13	0 °F	January 13, 2024
13	0 °F	January 5, 2004
13	0 °F	January 1, 1979
13	0 °F	January 19, 1943
13	0 °F	January 18, 1943
13	0 °F	January 20, 1935
13	0 °F	January 3, 1924
13	0 °F	December 12, 1922