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 | 15 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.67 | 3.13 | 0.00 | 0 |
| Bighorn | 15 Oct 2026 | 0.20 | 36 | 0.00 | 0.10 | 0.32 | 0.55 | 1.02 | 1.69 | 2.74 | 0.00 | 0 |
| Cheyenne | 15 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.47 | 3.35 | 0.00 | 0 |
| Laramie | 15 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.03 | 0.13 | 0.64 | 1.05 | 2.83 | 0.00 | 0 |
| Little Snake | 15 Oct 2026 | 0.05 | 56 | 0.00 | 0.00 | 0.02 | 0.09 | 0.33 | 0.95 | 1.79 | 0.00 | 0 |
| Lower Green | 15 Oct 2026 | 0.06 | 200 | 0.00 | 0.00 | 0.00 | 0.03 | 0.23 | 0.58 | 0.90 | 0.00 | 0 |
| Lower North Platte | 15 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.07 | 0.46 | 1.00 | 3.33 | 0.00 | 0 |
| Madison | 15 Oct 2026 | 0.26 | 108 | 0.00 | 0.00 | 0.02 | 0.24 | 0.50 | 0.87 | 1.38 | 0.00 | 0 |
| Powder | 15 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.09 | 0.21 | 0.56 | 1.38 | 2.49 | 0.00 | 0 |
| Shoshone | 15 Oct 2026 | 0.27 | 52 | 0.00 | 0.00 | 0.16 | 0.52 | 1.07 | 1.94 | 2.44 | 0.00 | 0 |
| Snake | 15 Oct 2026 | 0.15 | 75 | 0.00 | 0.00 | 0.05 | 0.20 | 0.64 | 0.95 | 1.47 | 0.00 | 0 |
| South Platte | 15 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.27 | 0.50 | 1.10 | 0.00 | 0 |
| Sweetwater | 15 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.17 | 0.47 | 1.22 | 2.90 | 0.00 | 0 |
| Tongue | 15 Oct 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.20 | 0.37 | 1.05 | 1.70 | 2.77 | 0.00 | 0 |
| Upper Bear | 15 Oct 2026 | 0.07 | 700 | 0.00 | 0.00 | 0.00 | 0.01 | 0.30 | 0.81 | 1.14 | 0.00 | 0 |
| Upper Green | 15 Oct 2026 | 0.14 | 233 | 0.00 | 0.00 | 0.00 | 0.06 | 0.30 | 0.95 | 1.95 | 0.00 | 0 |
| Upper North Platte | 15 Oct 2026 | 0.03 | 10 | 0.00 | 0.00 | 0.10 | 0.31 | 0.72 | 1.55 | 2.75 | 0.00 | 0 |
| Wind | 15 Oct 2026 | 0.06 | 19 | 0.00 | 0.00 | 0.13 | 0.31 | 0.80 | 1.42 | 2.54 | 0.00 | 0 |
| Yellowstone | 15 Oct 2026 | 0.40 | 63 | 0.00 | 0.00 | 0.18 | 0.63 | 1.03 | 1.57 | 2.53 | 0.00 | 0 |