Rainfall totals South Dakota
No heavy-rain reports were filed in South Dakota in the last 24 hours. The state table below has the year to date totals for 2026.
City rainfall totals for South Dakota
| City | Year to date | Normal to date | Rain days | Last rain |
|---|---|---|---|---|
| Sioux Falls | 12.89 inches | 19.74 inches | 53 | 0.11 inches Aug 19, 2026 |
| Rapid City | 9.53 inches | 13.53 inches | 50 | 0.32 inches Aug 18, 2026 |
Station observations are from GHCN-Daily, with a 1-3 day lag and quality checks by NOAA. Averages are 1991-2020 normals from NCEI.
Rainfall records for South Dakota
| City | Wettest day | Wettest year | Average year |
|---|---|---|---|
| Sioux Falls | 5.44 inches Aug 7, 2022 | 39.54 inches 2019 | 25.60 inches |
| Rapid City | 3.78 inches Jun 15, 1963 | 28.43 inches 2019 | 16.59 inches |
National Weather Service offices file Local Storm Reports; the Iowa Environmental Mesonet of Iowa State University relays them to this page, where they appear as live spotter reports. 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.