Rainfall totals Duluth, MN
Through Oct 7, 2026, Duluth has received 23.47 inches of rain for the year, according to the official daily climate report. The normal year-to-date total is 25.60 inches. The normal figure is what the city would typically have seen by this point in the calendar. This reading comes from the station gauge at DULUTH in the National Weather Service's daily climate report.
as of
Data from Duluth International Airport, with records back to 1948. Across the record from 1948, 100 percent of days have a reading, with 100 percent in 2025.
Most recent rainfall
0.33 inches of rain fell on Oct 3, 2026, the latest measurable rainfall this year.
At DULUTH, the total for Oct 7, 2026 was a trace, per the National Weather Service daily climate report.
Official rainfall report for Oct 7, 2026
| Measured | Normal | vs normal | |
|---|---|---|---|
| Rain on Oct 7, 2026 | T | 0.11 inches | -0.11 inches |
| Last 48 hours | 0.00 inches | ||
| Last 72 hours | 0.13 inches | ||
| Last 7 days | 0.46 inches | ||
| Month to date | 0.46 inches | 0.76 inches | -0.30 inches (-39%) |
| Year to date | 23.47 inches | 25.60 inches | -2.13 inches (-8%) |
| Record for Oct 7 | 1.25 inches | 1977 |
Source: National Weather Service daily climate report for DULUTH, issued the morning after Oct 7, 2026. The local National Weather Service office issues the daily climate report for the airport station the next morning, and that report is the official figure.
How much rain did Duluth get?
Days with measurable rain, 2026
| Date | Rainfall |
|---|---|
| Oct 3, 2026 | 0.33 inches |
| Sep 29, 2026 | 0.11 inches |
| Sep 24, 2026 | 0.13 inches |
| Sep 16, 2026 | 0.06 inches |
| Sep 15, 2026 | 0.01 inches |
| Sep 14, 2026 | 0.73 inches |
| Sep 11, 2026 | 0.41 inches |
| Sep 8, 2026 | 0.45 inches |
| Sep 7, 2026 | 0.01 inches |
| Sep 5, 2026 | 0.02 inches |
| Sep 4, 2026 | 0.30 inches |
| Sep 3, 2026 | 1.22 inches |
| Aug 31, 2026 | 0.68 inches |
| Aug 30, 2026 | 0.39 inches |
| Aug 29, 2026 | 0.11 inches |
| Aug 25, 2026 | 0.54 inches |
| Aug 20, 2026 | 0.11 inches |
| Aug 17, 2026 | 0.04 inches |
| Aug 16, 2026 | 0.01 inches |
| Aug 15, 2026 | 0.14 inches |
| Aug 7, 2026 | 0.02 inches |
| Aug 4, 2026 | 0.26 inches |
| Jul 31, 2026 | 2.41 inches |
| Jul 25, 2026 | 0.05 inches |
| Jul 24, 2026 | 0.03 inches |
| Jul 21, 2026 | 0.01 inches |
| Jul 17, 2026 | 0.28 inches |
| Jul 8, 2026 | 0.24 inches |
| Jul 7, 2026 | 0.19 inches |
| Jul 6, 2026 | 0.36 inches |
With 2.41 inches on Jul 31, 2026, this is the 40th wettest of the 10,499 measurable rain days in the Duluth International Airport record, which begins in 1948. That is the most rain recorded at this station on July 31 since 1948.
Through Oct 3, 2026, the GHCN-Daily station record shows 23.34 inches of measurable rain so far this year, falling over a 96-day span. Station observations are from GHCN-Daily, with a 1-3 day lag and quality checks by NOAA.
Duluth rainfall by month, 2026
| Month | Rainfall | Normal | vs normal |
|---|---|---|---|
| January | 0.63 inches | 0.95 inches | -0.32 inches (-34%) |
| February | 1.41 inches | 1.01 inches | +0.40 inches (+40%) |
| March | 1.32 inches | 1.46 inches | -0.14 inches (-10%) |
| April | 3.66 inches | 2.53 inches | +1.13 inches (+45%) |
| May | 1.27 inches | 3.37 inches | -2.10 inches (-62%) |
| June | 4.28 inches | 4.39 inches | -0.11 inches (-3%) |
| July | 4.69 inches | 3.92 inches | +0.77 inches (+20%) |
| August | 2.30 inches | 3.73 inches | -1.43 inches (-38%) |
| September | 3.45 inches | 3.48 inches | -0.03 inches (-1%) |
| October | 0.33 inches | 2.91 inches |
October is still in progress; figures run through Oct 3, 2026. Averages are 1991-2020 normals from NCEI.
Rainfall days at each threshold in Duluth
| Year | 0.5+ in. | 1+ in. | 2+ in. | 3+ in. |
|---|---|---|---|---|
| 2025 | 9 | 0 | 0 | 0 |
| 2024 | 14 | 6 | 1 | 0 |
| 2023 | 18 | 6 | 2 | 1 |
| 2022 | 21 | 4 | 0 | 0 |
| 2021 | 17 | 4 | 0 | 0 |
| 2020 | 12 | 3 | 0 | 0 |
| 2019 | 20 | 6 | 0 | 0 |
| 2018 | 17 | 5 | 0 | 0 |
| 2017 | 22 | 9 | 0 | 0 |
| 2016 | 17 | 7 | 1 | 0 |
| Average | 17.9 | 5.8 | 0.9 | 0.2 |
A day counts when its rainfall total meets or passes the column amount, from Duluth International Airport records in GHCN-Daily. Every complete year starting with 1948 counts toward the average, 78 years in total.
Past rainfall years in Duluth
All-time rainfall records
| Wettest day | 4.14 inches | Jun 19, 2012 |
|---|---|---|
| Wettest year | 43.44 inches | 1991 |
| Driest year | 19.84 inches | 1987 |
| Average year | 30.43 inches | 78 complete years on record |
| Rain days a year | 133 | average, 0.01 inch or more |
| Record begins | 1948 | 28,750 daily readings |
Monthly rainfall normals
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inches | 0.95 | 1.01 | 1.46 | 2.53 | 3.37 | 4.39 | 3.92 | 3.73 | 3.48 | 2.91 | 1.96 | 1.47 | 31.18 |
Averages are 1991-2020 normals from NCEI.
Duluth appears in the site's top 12 of the foggiest cities in the US, averaging 45 heavy fog days yearly at its airport station (NCEI daily records).
The daily climate report is issued by the local National Weather Service forecast office and delivered to this page by the Iowa Environmental Mesonet of Iowa State University. Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.