Most Daily Precipitation in Boise History

This is a list of the largest daily precipitation totals ever recorded in Boise, Idaho history from 1911–2024.

What's the Most It Has Ever Rained in Boise?

According to NOAA records, the most rain that Boise, Idaho has ever received in a single day is 1.9 inches which occurred on Thursday June 12, 1958.

Also see most rain in: 2 days | 1 week | 1 month

Boise Most Rain in One Day

Rank	Precipitation	Date
1	1.9 inches	June 12, 1958
2	1.8 inches	May 29, 1990
3	1.7 inches	September 11, 1976
4	1.7 inches	February 2, 1916
5	1.6 inches	August 13, 1979
6	1.6 inches	March 20, 1981
7	1.5 inches	August 26, 2023
8	1.4 inches	May 22, 2010
9	1.4 inches	March 30, 2017
10	1.3 inches	May 1, 1938
11	1.3 inches	April 6, 1969
11	1.3 inches	August 9, 1930
13	1.3 inches	October 7, 1916
14	1.2 inches	June 13, 2020
15	1.2 inches	November 1, 2014
15	1.2 inches	September 23, 1918
17	1.1 inches	January 18, 1953
17	1.1 inches	May 23, 1942
19	1.1 inches	June 30, 1938
20	1.1 inches	June 10, 1977