Sunrise and Sunset Times in Iowa

Sunrise and Sunset in Iowa

The 19 Iowa cities listed here span 2.1° of latitude, from Ottumwa in the south (41.0°N) to Mason City in the north (43.1°N). On the June solstice that puts about 15h 23m of daylight over Mason City against 15h 8m over Ottumwa — a 15m difference inside one state. In December the gap reverses, and the southern cities are the ones holding more light.

The median Iowa city swings 6h 4m between the solstices against a national median of 5h 16m, so seasons here move the clock 48m more than they do in a typical American city.

Seasons bite hardest in Mason City, where daylight swings 6h 24m between the solstices, and least in Ottumwa at 5h 55m. The table above lists both figures for every city, so you can see where any town falls between those two extremes.

Iowa sits entirely in Central Time. Longitude decides how a city's clock lines up with its Sun: Sioux City sits furthest west inside its zone, which puts mean solar noon about 26 minutes after clock noon and gives it the state's latest-running evenings for its longitude.

Each city page carries that city's full profile: today's sunrise and sunset on a live tracker, a twelve-month table of times, the dates of the year's earliest and latest sunsets, the Sun's midday height by season, a golden-hour calendar, clear-sky solar-energy figures, and where the city ranks against the rest of the country.