Earliest and Latest Days of 100° F in Hardin

This is a list of the earliest and latest days in the year with a high temperature of at least 100 °F in Hardin, Montana history. It is based on NOAA data from the years 1948–2024.

Also see:

Earliest 100 degree day in Hardin?

The earliest in the year that Hardin, Montana had a high temperature of at least 100 °F is June 4 which happened in 1988.

Latest 100 degree day in Hardin?

The latest in the year that Hardin, Montana had a high temperature of at least 100 °F is September 14 which happened in 1948.

Earliest Days ≥ 100 °F

Date	Year	Temperature
June 4	1988	104 °F
June 5	1988	105 °F
June 6	1988	106 °F
June 7	1988	101 °F
June 8	1988	101 °F
June 13	2020	100 °F
June 14	2021	102 °F
June 14	1979	102 °F
June 15	2021	105 °F
June 15	1987	102 °F
June 16	2021	105 °F
June 17	1988	103 °F
June 17	1986	100 °F
June 18	1988	101 °F
June 18	1986	102 °F
June 19	1989	104 °F
June 19	1984	100 °F
June 20	1988	104 °F
June 20	1986	100 °F
June 20	1974	100 °F

Latest Days ≥ 100 °F

Date	Year	Temperature
September 14	1948	102 °F
September 7	2022	105 °F
September 6	2020	100 °F
September 6	2007	101 °F
September 6	1976	104 °F
September 5	2020	103 °F
September 5	2019	100 °F
September 5	2007	101 °F
September 5	1978	102 °F
September 5	1950	102 °F
September 4	2022	103 °F
September 4	2019	100 °F
September 4	2007	102 °F
September 4	1998	101 °F
September 4	1950	104 °F
September 3	2022	103 °F
September 3	2005	100 °F
September 3	1998	100 °F
September 3	1950	100 °F
September 2	1998	100 °F
September 2	1983	103 °F