Helena Longest Dry Streaks

What's longest streak without rain in Helena history? This page shows the most consecutive days it has gone without precipitation in Helena, Montana from 1893–2024.

Longest rain streaks
Longest snow streaks

Longest Streak: 61 Days

Between Jul 10 – Sep 8, 2017, there were no recorded days with at least 0.01 inches of rain or 0.1 inches of snow in Helena.

# Days	When
61	Jul 10 – Sep 8, 2017
49	Nov 15, 1930 – Jan 2, 1931
40	Nov 12 – Dec 21, 1913
38	Oct 11 – Nov 17, 1904
37	Nov 22 – Dec 28, 1918
36	Aug 28 – Oct 2, 2012
36	Aug 31 – Oct 5, 1932
36	Aug 4 – Sep 8, 1929
34	Oct 24 – Nov 26, 1954
34	Aug 20 – Sep 22, 1948
33	Mar 2 – Apr 3, 1999
33	Aug 1 – Sep 2, 1940
33	Nov 23 – Dec 25, 1935
32	Oct 24 – Nov 24, 1976
32	Sep 18 – Oct 19, 1922
32	Aug 17 – Sep 17, 1913
32	Nov 29 – Dec 30, 1905
31	Jun 6 – Jul 6, 1985
31	Dec 31, 1980 – Jan 30, 1981
31	Nov 17 – Dec 17, 1969

Weather Station Details

Years	Station	Coordinates
1939–2024	Helena Regional Airport	location
1893–1938	Helna	location