Earliest and Latest Days of 100° F in Bonners Ferry

This is a list of the earliest and latest days in the year with a high temperature of at least 100 °F in Bonners Ferry, Idaho history. It is based on NOAA data from the years 1907–2024.

Also see:

Earliest 100 degree day in Bonners Ferry?

The earliest in the year that Bonners Ferry, Idaho had a high temperature of at least 100 °F is June 28 which has happened twice, most recently in 2021.

Latest 100 degree day in Bonners Ferry?

The latest in the year that Bonners Ferry, Idaho had a high temperature of at least 100 °F is August 18 which has happened twice, most recently in 2008.

Earliest Days ≥ 100 °F

Date	Year	Temperature
June 28	2021	103 °F
June 28	2015	105 °F
June 29	2021	105 °F
June 30	2021	108 °F
July 1	2021	107 °F
July 2	2021	101 °F
July 9	1985	101 °F
July 10	1975	100 °F
July 12	1940	102 °F
July 15	2007	100 °F
July 15	1941	100 °F
July 16	1941	104 °F
July 17	1941	101 °F
July 18	1979	100 °F
July 18	1960	101 °F
July 19	1979	103 °F
July 19	1944	102 °F
July 20	1979	101 °F
July 21	1985	100 °F
July 23	2006	101 °F
July 23	1994	101 °F
July 23	1938	101 °F

Latest Days ≥ 100 °F

Date	Year	Temperature
August 18	2008	100 °F
August 18	1977	100 °F
August 17	2023	102 °F
August 17	2008	101 °F
August 16	2023	102 °F
August 14	2015	101 °F
August 14	1994	101 °F
August 13	2015	100 °F
August 11	2018	105 °F
August 3	1961	101 °F
August 1	2022	100 °F
August 1	2021	101 °F
August 1	2020	101 °F
July 31	2021	101 °F
July 30	2014	100 °F
July 30	2003	101 °F
July 29	1939	101 °F
July 28	1939	102 °F
July 27	1944	100 °F
July 24	2006	100 °F