Earliest and Latest Days of 100° F in Hillsboro

This is a list of the earliest and latest days in the year with a high temperature of at least 100 °F in Hillsboro, Ohio history. It is based on NOAA data from the years 1893–2024.

Also see:

Earliest 100 degree day in Hillsboro?

The earliest in the year that Hillsboro, Ohio had a high temperature of at least 100 °F is June 2 which happened in 1895.

Latest 100 degree day in Hillsboro?

The latest in the year that Hillsboro, Ohio had a high temperature of at least 100 °F is September 22 which happened in 1895.

Earliest Days ≥ 100 °F

Date	Year	Temperature
June 2	1895	100 °F
June 3	1895	103 °F
June 4	1895	102 °F
June 25	1914	100 °F
July 2	1898	102 °F
July 3	1948	100 °F
July 3	1911	100 °F
July 3	1898	104 °F
July 3	1897	102 °F
July 4	1949	100 °F
July 4	1911	100 °F
July 4	1897	105 °F
July 7	2012	100 °F
July 8	2012	100 °F
July 9	1988	100 °F
July 9	1936	100 °F
July 10	1936	102 °F
July 12	1936	101 °F
July 12	1914	101 °F
July 13	1936	100 °F

Latest Days ≥ 100 °F

Date	Year	Temperature
September 22	1895	104 °F
September 21	1895	103 °F
September 20	1895	105 °F
September 19	1895	104 °F
September 18	1895	101 °F
September 16	1897	100 °F
September 15	1897	101 °F
September 14	1897	101 °F
September 12	1897	100 °F
September 12	1895	100 °F
September 11	1897	100 °F
September 11	1895	102 °F
September 10	1895	100 °F
September 8	1946	100 °F
September 7	1894	101 °F
September 3	1953	101 °F
August 31	1953	100 °F
August 28	1948	100 °F
August 27	1948	103 °F
August 26	1948	100 °F