Most Precipitation in a 7-Day Period in Lewiston History
This is a list of the largest precipitation totals ever recorded over 7 consecutive days in
Lewiston, Idaho history from 1894–2024.
Note: Does not include overlapping periods.
Change num days:
- Years marked with a gold background have more than 5% incomplete data
| Rank |
Precipitation |
Date |
| 1 |
3.1 inches |
Sep 28 – Oct 4, 1940 |
| 2 |
2.8 inches |
Jan 18–24, 1970 |
| 3 |
2.8 inches |
May 21–27, 1998 |
| 4 |
2.5 inches |
May 6–12, 1948 |
| 5 |
2.5 inches |
Aug 21–27, 1989 |
| 6 |
2.4 inches |
Dec 20–26, 1964 |
| 7 |
2.4 inches |
May 12–18, 1996 |
| 8 |
2.3 inches |
Mar 20–26, 2012 |
| 9 |
2.2 inches |
Jun 11–17, 1950 |
| 10 |
2.1 inches |
Jul 8–14, 1998 |
| 11 |
2.1 inches |
May 4–10, 1956 |
| 12 |
2.1 inches |
Sep 14–20, 1940 |
| 13 |
2.1 inches |
May 13–19, 1991 |
| 14 |
2.1 inches |
Feb 4–10, 2020 |
| 15 |
2.0 inches |
Oct 16–22, 1899 |
| 16 |
2.0 inches |
Aug 25–31, 1956 |
| 17 |
2.0 inches |
Jun 4–10, 1964 |
| 18 |
2.0 inches |
Nov 13–19, 1996 |
| 19 |
2.0 inches |
Nov 13–19, 1897 |
| 20 |
1.9 inches |
Jan 13–19, 1956 |
Weather Station Details
| Years |
Station |
Coordinates |
| 1948–2024 |
Lewiston Nez Perce County Airport |
location |
| 1894–1947 |
Lewiston WTP |
location |