Most Daily Precipitation in St. Helena History

This is a list of the largest daily precipitation totals ever recorded in St. Helena, California history from 1907–2023.

What's the Most It Has Ever Rained in St. Helena?

According to NOAA records, the most rain that St. Helena, California has ever received in a single day is 9.9 inches which occurred on Sunday October 24, 2021.

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

St. Helena Most Rain in One Day

Rank	Precipitation	Date
1	9.9 inches	October 24, 2021
2	7.0 inches	December 30, 1913
3	6.8 inches	January 21, 1967
4	6.4 inches	March 9, 1995
5	5.8 inches	February 16, 1986
6	5.8 inches	December 19, 1955
7	5.6 inches	October 12, 1962
8	5.5 inches	December 2, 1980
9	5.5 inches	December 11, 2014
10	5.3 inches	December 12, 1995
11	5.3 inches	January 3, 1916
12	5.3 inches	December 31, 2005
13	5.2 inches	February 4, 1937
14	5.2 inches	November 21, 1977
15	5.1 inches	March 30, 1982
15	5.1 inches	February 11, 1925
17	4.9 inches	December 22, 1955
18	4.6 inches	January 31, 1963
19	4.6 inches	December 12, 1915
20	4.5 inches	February 7, 1985