Earliest and Latest Days at or Below 0° C in Kotka

This is a list of the earliest and latest days in a winter season where the low temperature fell to at least 0 °C in Kotka, Finland history. It is based on NOAA data from the years 1959–2024.
Earliest freezing temperature in Kotka?
The earliest in a winter season that Kotka, Finland has recorded a low temperature of 0 °C or below is September 27 which happened in 1986.
Latest freezing temperature in Kotka?
The latest in a winter season that Kotka, Finland has recorded a low temperature of 0 °C or below is May 16 which happened in 1965.

Earliest Days ≤ 0 °C

Date Year Temperature
September 27 1986 -0.2 °C
September 28 1986 -0.7 °C
October 3 1959 -1.0 °C
October 4 2002 -0.7 °C
October 4 1959 -0.5 °C
October 6 2002 -0.1 °C
October 6 1986 -0.4 °C
October 7 2002 0.0 °C
October 8 1959 -0.6 °C
October 9 2002 -0.5 °C
October 9 1959 -2.8 °C
October 10 2002 0.0 °C
October 10 1992 -0.8 °C
October 10 1986 -0.8 °C
October 10 1965 -0.7 °C
October 11 1978 -0.6 °C
October 11 1973 -0.9 °C
October 11 1968 -0.5 °C
October 11 1966 -0.2 °C
October 11 1965 -0.2 °C

Latest Days ≤ 0 °C

Date Year Temperature
May 16 1965 -0.3 °C
May 14 1999 0.0 °C
May 13 1999 -0.8 °C
May 12 2017 -0.3 °C
May 12 1999 -1.4 °C
May 11 2017 -0.6 °C
May 11 1999 -0.8 °C
May 10 2017 -0.6 °C
May 10 1987 -0.2 °C
May 10 1978 -0.7 °C
May 10 1972 -0.7 °C
May 9 1999 -1.3 °C
May 9 1996 -0.4 °C
May 9 1966 -1.2 °C
May 8 1999 -0.6 °C
May 8 1966 -2.2 °C
May 7 2014 -0.1 °C
May 7 1987 -0.7 °C
May 7 1966 -1.3 °C
May 7 1960 -1.1 °C