BISMARCK, N.D. — October brought unusually heavy rain to the capital region, pushing total precipitation for 2025 in Bismarck above 24 inches and placing the city among the state’s top wettest years on record.
An active weather pattern — with moist air streaming in from the west and storms tracking across the Northern Plains — has meant that after a relatively dry start to the year, Bismarck ended up with above-normal rainfall during spring, summer and fall.
In particular, October stood out: while a dry stretch ran from the 6th–13th, the rest of the month brought several rain events. One report shows Bismarck’s airport received 1.90 inches over a weekend alone in early October.
According to meteorologists, this is the third‐wettest October on record locally, with 2025 only behind two previous Octobers.
The saturated soil and delayed dry‐down in fall means field work and harvesting may have needed extra planning — “we didn’t go many days without some rain,” meteorologists note.
With above-normal rainfall, even storm drains and gutters in neighborhoods around Bismarck/Mandan may have had to manage more runoff than usual.
While this hasn’t necessarily triggered a major flood event in the capital yet, too much rain leads to higher soil moisture, and combined with snow melt later could elevate river levels or surface water issues.
Keep an eye on river levels around the Missouri River and tributaries as we head into snow season.
The soaked October in Bismarck is more than just a statistical oddity — it reflects deeper changes in our weather rhythm and has tangible effects on farms, homes and local infrastructure.
As 2025 ends, the extra rain may ease some drought concerns, but it also raises new questions: how prepared are we for what comes next?