Earliest and Latest Days of 90° F in Webster City

This is a list of the earliest and latest days in the year with a high temperature of at least 90 °F in Webster City, Iowa history. It is based on NOAA data from the years 1893–2024.

Also see:

Earliest 90 degree day in Webster City?

The earliest in the year that Webster City, Iowa had a high temperature of at least 90 °F is April 10 which happened in 1930.

Latest 90 degree day in Webster City?

The latest in the year that Webster City, Iowa had a high temperature of at least 90 °F is October 21 which happened in 1947.

Earliest Days ≥ 90 °F

Date	Year	Temperature
April 10	1930	91 °F
April 16	2002	90 °F
April 18	1994	93 °F
April 18	1985	90 °F
April 21	1980	92 °F
April 22	1980	97 °F
April 22	1925	90 °F
April 24	1939	91 °F
April 25	1949	91 °F
April 27	1981	90 °F
April 28	1970	91 °F
April 28	1910	94 °F
April 29	1910	97 °F
April 30	2007	90 °F
April 30	1926	94 °F
May 2	1952	90 °F
May 3	1949	90 °F
May 3	1918	90 °F
May 4	1952	91 °F
May 4	1918	92 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
October 21	1947	90 °F
October 20	1947	90 °F
October 14	1947	91 °F
October 13	1975	90 °F
October 12	1975	90 °F
October 10	1928	90 °F
October 7	1997	92 °F
October 6	1997	90 °F
October 6	1963	94 °F
October 5	1963	96 °F
October 4	1997	94 °F
October 4	1938	90 °F
October 3	1997	91 °F
October 3	1938	91 °F
October 2	1953	94 °F
October 1	2023	91 °F
October 1	1976	92 °F
September 30	1952	93 °F
September 29	1898	91 °F
September 28	1956	90 °F
September 28	1952	90 °F
September 28	1939	94 °F