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 | 12 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.55 | 3.17 | 0.00 | 0 |
| Bighorn | 12 Oct 2026 | 0.20 | 44 | 0.00 | 0.01 | 0.28 | 0.45 | 0.83 | 1.49 | 2.43 | 0.00 | 0 |
| Cheyenne | 12 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.50 | 3.45 | 0.00 | 0 |
| Laramie | 12 Oct 2026 | 0.04 | 24 | 0.00 | 0.00 | 0.03 | 0.17 | 0.31 | 1.07 | 2.40 | 0.00 | 0 |
| Little Snake | 12 Oct 2026 | 0.06 | 86 | 0.00 | 0.00 | 0.00 | 0.07 | 0.30 | 0.76 | 1.63 | 0.00 | 0 |
| Lower Green | 12 Oct 2026 | 0.02 | 40 | 0.00 | 0.00 | 0.00 | 0.05 | 0.22 | 0.50 | 1.11 | 0.00 | 0 |
| Lower North Platte | 12 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.12 | 0.38 | 1.06 | 2.77 | 0.00 | 0 |
| Madison | 12 Oct 2026 | 0.18 | 112 | 0.00 | 0.00 | 0.04 | 0.16 | 0.46 | 0.66 | 1.06 | 0.00 | 0 |
| Powder | 12 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.03 | 0.17 | 0.54 | 0.95 | 2.07 | 0.00 | 0 |
| Shoshone | 12 Oct 2026 | 0.23 | 77 | 0.00 | 0.00 | 0.15 | 0.30 | 0.73 | 1.63 | 2.30 | 0.00 | 0 |
| Snake | 12 Oct 2026 | 0.10 | 62 | 0.00 | 0.00 | 0.04 | 0.16 | 0.40 | 0.64 | 1.25 | 0.00 | 0 |
| South Platte | 12 Oct 2026 | 0.10 | 100 | 0.00 | 0.00 | 0.00 | 0.10 | 0.17 | 0.79 | 1.40 | 0.00 | 0 |
| Sweetwater | 12 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.13 | 0.42 | 0.98 | 2.15 | 0.00 | 0 |
| Tongue | 12 Oct 2026 | 0.06 | 20 | 0.00 | 0.00 | 0.10 | 0.30 | 0.78 | 1.58 | 2.45 | 0.00 | 0 |
| Upper Bear | 12 Oct 2026 | 0.09 | 450 | 0.00 | 0.00 | 0.00 | 0.02 | 0.21 | 0.69 | 1.13 | 0.00 | 0 |
| Upper Green | 12 Oct 2026 | 0.04 | 67 | 0.00 | 0.00 | 0.00 | 0.06 | 0.27 | 0.63 | 1.49 | 0.00 | 0 |
| Upper North Platte | 12 Oct 2026 | 0.04 | 15 | 0.00 | 0.00 | 0.03 | 0.26 | 0.58 | 1.42 | 2.26 | 0.00 | 0 |
| Wind | 12 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.09 | 0.22 | 0.61 | 1.25 | 2.10 | 0.00 | 0 |
| Yellowstone | 12 Oct 2026 | 0.20 | 48 | 0.00 | 0.01 | 0.20 | 0.42 | 0.75 | 1.38 | 2.23 | 0.00 | 0 |