Earliest and Latest Days of 80° F in St. Johnsbury

This is a list of the earliest and latest days in the year with a high temperature of at least 80 °F in St. Johnsbury, Vermont history. It is based on NOAA data from the years 1894–2024.

Also see:

Earliest 80 degree day in St. Johnsbury?

The earliest in the year that St. Johnsbury, Vermont had a high temperature of at least 80 °F is March 21 which happened in 2012.

Latest 80 degree day in St. Johnsbury?

The latest in the year that St. Johnsbury, Vermont had a high temperature of at least 80 °F is October 23 which happened in 1979.

Earliest Days ≥ 80 °F

Date	Year	Temperature
March 21	2012	81 °F
March 22	2012	81 °F
March 29	1946	82 °F
March 31	1998	84 °F
April 1	1998	82 °F
April 3	2010	84 °F
April 4	2010	83 °F
April 5	1910	83 °F
April 7	1991	81 °F
April 8	1991	80 °F
April 10	1945	80 °F
April 11	2017	80 °F
April 11	1945	84 °F
April 12	1945	84 °F
April 13	2023	83 °F
April 13	1968	81 °F
April 13	1945	85 °F
April 14	2023	84 °F
April 14	1968	82 °F
April 14	1945	83 °F

Latest Days ≥ 80 °F

Date	Year	Temperature
October 23	1979	80 °F
October 22	1979	82 °F
October 18	1968	81 °F
October 18	1947	82 °F
October 17	1947	86 °F
October 16	1968	82 °F
October 16	1956	80 °F
October 16	1947	83 °F
October 15	1956	80 °F
October 15	1947	80 °F
October 14	1995	81 °F
October 14	1930	81 °F
October 13	1995	81 °F
October 13	1938	81 °F
October 13	1930	86 °F
October 12	1954	81 °F
October 12	1949	84 °F
October 12	1938	81 °F
October 12	1930	89 °F
October 12	1928	83 °F