Water Resources Data System & State Climate Office
Water Resources Data System & State Climate Office
Water Resources Data System & State Climate Office
| Basin Click to View Chart | Date | Today SWE (inches) | Today SWE % of Median | Minimum SWE (in) | 10th Percentile (inches) | 30th Percentile Inches | Median (inches) | 70th Percentile (inches) | 90th Percentile (inches) | Maximum (inches) | Last Year SWE (inches) | Last Year SWE % of Median |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Belle Fourche | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.13 | 0.00 | 0 |
| Bighorn | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.30 | 0.68 | 0.00 | 0 |
| Cheyenne | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0 |
| Laramie | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.17 | 0.00 | 0 |
| Little Snake | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.31 | 0.00 | 0 |
| Lower Green | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.27 | 0.00 | 0 |
| Lower North Platte | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.35 | 0.03 | 0 |
| Madison | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.85 | 0.00 | 0 |
| Powder | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.19 | 1.10 | 0.00 | 0 |
| Shoshone | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.25 | 1.43 | 0.00 | 0 |
| Snake | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.28 | 0.00 | 0 |
| South Platte | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0 |
| Sweetwater | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.65 | 0.00 | 0 |
| Tongue | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.27 | 0.00 | 0 |
| Upper Bear | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.10 | 0.00 | 0 |
| Upper Green | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.17 | 0.00 | 0 |
| Upper North Platte | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.31 | 0.00 | 0 |
| Wind | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.26 | 0.72 | 0.00 | 0 |
| Yellowstone | 20 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.27 | 0.71 | 0.00 | 0 |