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 | 09 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.35 | 3.23 | 0.00 | 0 |
| Bighorn | 09 Oct 2026 | 0.54 | 154 | 0.00 | 0.00 | 0.12 | 0.35 | 0.80 | 1.44 | 2.50 | 0.00 | 0 |
| Cheyenne | 09 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.39 | 3.30 | 0.00 | 0 |
| Laramie | 09 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.03 | 0.17 | 0.78 | 2.02 | 0.00 | 0 |
| Little Snake | 09 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.18 | 0.46 | 1.48 | 0.00 | 0 |
| Lower Green | 09 Oct 2026 | 0.08 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.13 | 0.45 | 1.34 | 0.00 | 0 |
| Lower North Platte | 09 Oct 2026 | 0.05 | 167 | 0.00 | 0.00 | 0.00 | 0.03 | 0.30 | 0.79 | 2.02 | 0.00 | 0 |
| Madison | 09 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.04 | 0.30 | 0.69 | 0.94 | 0.00 | 0 |
| Powder | 09 Oct 2026 | 0.04 | 36 | 0.00 | 0.00 | 0.00 | 0.11 | 0.40 | 1.03 | 2.20 | 0.00 | 0 |
| Shoshone | 09 Oct 2026 | 0.20 | 100 | 0.00 | 0.00 | 0.01 | 0.20 | 0.66 | 1.52 | 2.10 | 0.00 | 0 |
| Snake | 09 Oct 2026 | 0.02 | 29 | 0.00 | 0.00 | 0.00 | 0.07 | 0.24 | 0.69 | 1.02 | 0.00 | 0 |
| South Platte | 09 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.19 | 1.10 | 0.00 | 0 |
| Sweetwater | 09 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.27 | 0.79 | 1.50 | 0.00 | 0 |
| Tongue | 09 Oct 2026 | 0.43 | 165 | 0.00 | 0.00 | 0.00 | 0.26 | 0.51 | 1.32 | 2.40 | 0.00 | 0 |
| Upper Bear | 09 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.45 | 1.35 | 0.00 | 0 |
| Upper Green | 09 Oct 2026 | 0.10 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.48 | 1.16 | 0.00 | 0 |
| Upper North Platte | 09 Oct 2026 | 0.01 | 20 | 0.00 | 0.00 | 0.00 | 0.05 | 0.44 | 0.90 | 1.91 | 0.00 | 0 |
| Wind | 09 Oct 2026 | 0.12 | 171 | 0.00 | 0.00 | 0.00 | 0.07 | 0.62 | 1.10 | 1.65 | 0.00 | 0 |
| Yellowstone | 09 Oct 2026 | 0.17 | 89 | 0.00 | 0.00 | 0.03 | 0.19 | 0.56 | 1.19 | 2.12 | 0.00 | 0 |