Watertown Consecutive 100 Degree Days

This page shows the record for the most days in a row in Watertown, South Dakota where the high temperature was at least 100 °F, from 1893–2024.

Also see:

Years with most 100° days
Earliest / latest 100° days

Longest Streak: 10 Days

Between Jul 9–18, 1936, the daily high temperature in Watertown was always at least 100 °F – a span of 10 days.

# Days	When
10	Jul 9–18, 1936
6	Jul 18–23, 1934
* 5	Jun 26 – Jul 1, 1931
* 4	Jul 22–28, 1941
4	Jul 27–30, 1933
3	Jul 4–6, 1988
3	Jun 26–28, 1933
3	Jul 25–27, 1931
3	Jul 14–16, 1931
3	Aug 1–3, 1930
3	Jul 22–24, 1893
2	Jul 30–31, 2006
2	Aug 15–16, 1988
2	Jun 24–25, 1988
2	Jul 28–29, 1975
2	Aug 26–27, 1973
2	Jul 10–11, 1966
2	Aug 9–10, 1947
2	May 30–31, 1934
2	Jun 18–19, 1933

Note: streaks marked with a (*) contain days with missing data