Rainfall totals Sioux Falls, SD
Through Oct 7, 2026, Sioux Falls has received 18.90 inches of rain for the year, according to the official daily climate report. The normal year-to-date total is 24.13 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 SIOUX FALLS in the National Weather Service's daily climate report.
as of
Data from Sioux Falls Foss Field, with records back to 1932. Across the record from 1932, 100 percent of days have a reading, with 100 percent in 2025.
Most recent rainfall
0.40 inches of rain fell on Sep 29, 2026, the latest measurable rainfall this year.
SIOUX FALLS saw no measurable rain on Oct 7, 2026, according to the National Weather Service daily climate report.
Official rainfall report for Oct 7, 2026
| Measured | Normal | vs normal | |
|---|---|---|---|
| Rain on Oct 7, 2026 | 0.00 inches | 0.09 inches | -0.09 inches |
| Last 48 hours | 0.00 inches | ||
| Last 72 hours | 0.00 inches | ||
| Last 7 days | 0.00 inches | ||
| Month to date | 0.00 inches | 0.69 inches | -0.69 inches (-100%) |
| Year to date | 18.90 inches | 24.13 inches | -5.23 inches (-22%) |
| Record for Oct 7 | 1.50 inches | 2007 |
Source: National Weather Service daily climate report for SIOUX FALLS, 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 Sioux Falls get?
Days with measurable rain, 2026
| Date | Rainfall |
|---|---|
| Sep 29, 2026 | 0.40 inches |
| Sep 26, 2026 | 0.63 inches |
| Sep 25, 2026 | 0.06 inches |
| Sep 24, 2026 | 0.66 inches |
| Sep 22, 2026 | 0.01 inches |
| Sep 21, 2026 | 0.31 inches |
| Sep 20, 2026 | 0.53 inches |
| Sep 18, 2026 | 0.90 inches |
| Sep 17, 2026 | 0.36 inches |
| Sep 14, 2026 | 0.64 inches |
| Sep 13, 2026 | 0.01 inches |
| Sep 11, 2026 | 0.41 inches |
| Sep 8, 2026 | 0.51 inches |
| Sep 7, 2026 | 0.02 inches |
| Sep 6, 2026 | 0.07 inches |
| Sep 5, 2026 | 0.23 inches |
| Sep 3, 2026 | 0.01 inches |
| Sep 1, 2026 | 0.03 inches |
| Aug 29, 2026 | 0.14 inches |
| Aug 24, 2026 | 0.02 inches |
| Aug 20, 2026 | 0.06 inches |
| Aug 19, 2026 | 0.11 inches |
| Aug 18, 2026 | 0.05 inches |
| Aug 15, 2026 | 0.05 inches |
| Aug 13, 2026 | 0.75 inches |
| Aug 12, 2026 | 0.01 inches |
| Aug 4, 2026 | 0.02 inches |
| Jul 30, 2026 | 0.08 inches |
| Jul 25, 2026 | 0.27 inches |
| Jul 3, 2026 | 0.02 inches |
With 1.81 inches on Jul 1, 2026, this is the 122nd wettest of the 9,172 measurable rain days in the Sioux Falls Foss Field record, which begins in 1932.
Through Oct 3, 2026, the GHCN-Daily station record shows 18.90 inches of measurable rain so far this year, falling over a 74-day span. Station observations are from GHCN-Daily, with a 1-3 day lag and quality checks by NOAA.
Sioux Falls rainfall by month, 2026
| Month | Rainfall | Normal | vs normal |
|---|---|---|---|
| January | 0.17 inches | 0.60 inches | -0.43 inches (-72%) |
| February | 0.03 inches | 0.83 inches | -0.80 inches (-96%) |
| March | 0.69 inches | 1.60 inches | -0.91 inches (-57%) |
| April | 2.37 inches | 3.00 inches | -0.63 inches (-21%) |
| May | 4.20 inches | 3.86 inches | +0.34 inches (+9%) |
| June | 1.74 inches | 4.23 inches | -2.49 inches (-59%) |
| July | 2.70 inches | 3.25 inches | -0.55 inches (-17%) |
| August | 1.21 inches | 3.34 inches | -2.13 inches (-64%) |
| September | 5.79 inches | 2.73 inches | +3.06 inches (+112%) |
| October | 0.00 inches | 2.36 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 Sioux Falls
| Year | 0.5+ in. | 1+ in. | 2+ in. | 3+ in. |
|---|---|---|---|---|
| 2025 | 14 | 2 | 0 | 0 |
| 2024 | 19 | 8 | 3 | 1 |
| 2023 | 12 | 3 | 0 | 0 |
| 2022 | 13 | 4 | 1 | 1 |
| 2021 | 16 | 9 | 1 | 1 |
| 2020 | 10 | 3 | 0 | 0 |
| 2019 | 27 | 8 | 1 | 0 |
| 2018 | 23 | 9 | 3 | 2 |
| 2017 | 16 | 8 | 1 | 0 |
| 2016 | 18 | 7 | 2 | 1 |
| Average | 15.7 | 5.5 | 0.9 | 0.2 |
A day counts when its rainfall total meets or passes the column amount, from Sioux Falls Foss Field records in GHCN-Daily. Every complete year starting with 1932 counts toward the average, 94 years in total.
Past rainfall years in Sioux Falls
All-time rainfall records
| Wettest day | 5.44 inches | Aug 7, 2022 |
|---|---|---|
| Wettest year | 39.54 inches | 2019 |
| Driest year | 11.42 inches | 1976 |
| Average year | 25.60 inches | 94 complete years on record |
| Rain days a year | 97 | average, 0.01 inch or more |
| Record begins | 1932 | 34,560 daily readings |
Monthly rainfall normals
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inches | 0.60 | 0.83 | 1.60 | 3.00 | 3.86 | 4.23 | 3.25 | 3.34 | 2.73 | 2.36 | 1.22 | 0.83 | 27.85 |
Averages are 1991-2020 normals from NCEI.
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.