Earliest and Latest Days of 90° F in Northwood

This is a list of the earliest and latest days in the year with a high temperature of at least 90 °F in Northwood, Iowa history. It is based on NOAA data from the years 1896–2024.

Also see:

Earliest 90 degree day in Northwood?

The earliest in the year that Northwood, Iowa had a high temperature of at least 90 °F is April 18 which happened in 1985.

Latest 90 degree day in Northwood?

The latest in the year that Northwood, Iowa had a high temperature of at least 90 °F is October 13 which happened in 1975.

Earliest Days ≥ 90 °F

Date	Year	Temperature
April 18	1985	92 °F
April 19	1985	90 °F
April 21	1980	93 °F
April 22	1980	92 °F
April 28	1970	91 °F
April 28	1910	90 °F
April 30	2007	90 °F
May 2	2021	93 °F
May 2	1992	91 °F
May 3	1949	91 °F
May 6	1934	93 °F
May 9	1987	91 °F
May 10	1987	92 °F
May 11	2011	91 °F
May 14	2007	91 °F
May 14	1932	92 °F
May 15	2013	100 °F
May 15	2001	90 °F
May 16	2001	91 °F
May 16	1987	91 °F
May 16	1936	91 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
October 13	1975	90 °F
October 6	1963	92 °F
October 5	1963	93 °F
October 2	2023	90 °F
October 2	1953	91 °F
October 1	1976	90 °F
September 22	1937	90 °F
September 21	1937	91 °F
September 20	1940	90 °F
September 19	1984	93 °F
September 19	1948	92 °F
September 18	1955	92 °F
September 18	1947	90 °F
September 17	1988	93 °F
September 17	1955	93 °F
September 17	1925	90 °F
September 16	1955	93 °F
September 16	1948	90 °F
September 16	1931	94 °F
September 15	1994	91 °F
September 15	1955	94 °F
September 15	1939	96 °F