Lowest April Temperatures in St. Helena

A list of the lowest temperatures ever recorded in the month of April in St. Helena, California from 1907–2023.
What's the coldest it has ever gotten in St. Helena in April?
The coldest April temperature in St. Helena, California history was 27 °F which has occurred twice, most recently on April 8, 1953.
Rank Temperature Date
1 27 °F April 8, 1953
1 27 °F April 7, 1929
3 28 °F April 1, 1936
3 28 °F April 9, 1929
3 28 °F April 6, 1929
3 28 °F April 9, 1922
7 29 °F April 2, 1976
7 29 °F April 17, 1933
7 29 °F April 5, 1932
7 29 °F April 15, 1921
11 30 °F April 11, 2017
11 30 °F April 1, 1976
11 30 °F April 15, 1975
11 30 °F April 1, 1967
11 30 °F April 7, 1965
11 30 °F April 24, 1964
11 30 °F April 27, 1955
11 30 °F April 3, 1955
11 30 °F April 9, 1953
11 30 °F April 1, 1951
11 30 °F April 5, 1945
11 30 °F April 7, 1932
11 30 °F April 10, 1927
11 30 °F April 9, 1927
11 30 °F April 18, 1922
11 30 °F April 13, 1922
11 30 °F April 4, 1918
11 30 °F April 11, 1911