St. Catharines Consecutive 30 Degree Days
This page shows the record for the most days in a row in
St. Catharines, Ontario where the
high temperature was
at least 30 °C, from 1882–2024.
Longest Streak: 12 Days
Between Aug 24 – Sep 4, 1953, the daily high temperature in St. Catharines was always at least 30 °C – a span of 12 days.
| # Days |
When |
| 12 |
Aug 24 – Sep 4, 1953 |
| 11 |
Aug 5–15, 1949 |
| * 11 |
Jul 3–15, 1912 |
| 10 |
Jul 14–23, 1955 |
| 10 |
Jul 1–10, 1955 |
| 9 |
Jul 18–26, 1987 |
| 9 |
Jul 29 – Aug 6, 1955 |
| 9 |
Jun 17–25, 1923 |
| 8 |
Jul 16–23, 1991 |
| 8 |
Jul 4–11, 1988 |
| 8 |
Aug 9–16, 1944 |
| 8 |
Jul 7–14, 1936 |
| 8 |
Jun 1–8, 1925 |
| 7 |
Jul 5–11, 1993 |
| 7 |
Aug 8–14, 1988 |
| 7 |
Aug 23–29, 1948 |
| 7 |
Jul 5–11, 1946 |
| 7 |
Jun 24–30, 1946 |
| 7 |
Jul 22–28, 1941 |
| 7 |
Jul 2–8, 1921 |
Note: streaks marked with a (*) contain days with missing data