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 | 06 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.00 | 0 |
| Bighorn | 06 Jun 2026 | 0.00 | 0 | 0.00 | 0.17 | 1.13 | 1.60 | 3.35 | 6.13 | 13.81 | 2.28 | 142 |
| Cheyenne | 06 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.00 | 0 |
| Laramie | 06 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.05 | 0.66 | 3.97 | 6.69 | 19.10 | 0.03 | 5 |
| Little Snake | 06 Jun 2026 | 0.00 | 0 | 0.00 | 0.25 | 1.64 | 2.58 | 4.50 | 7.80 | 16.10 | 1.56 | 60 |
| Lower Green | 06 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.05 | 0.61 | 2.49 | 4.65 | 9.78 | 0.00 | 0 |
| Lower North Platte | 06 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.49 | 11.03 | 0.00 | 0 |
| Madison | 06 Jun 2026 | 0.00 | 0 | 0.00 | 0.05 | 3.17 | 4.44 | 6.08 | 11.73 | 20.54 | 1.06 | 24 |
| Powder | 06 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.23 | 1.44 | 3.60 | 8.50 | 0.54 | 235 |
| Shoshone | 06 Jun 2026 | 0.00 | 0 | 0.00 | 1.27 | 3.05 | 4.97 | 9.70 | 16.24 | 23.53 | 2.55 | 51 |
| Snake | 06 Jun 2026 | 0.00 | 0 | 0.01 | 0.59 | 2.30 | 4.40 | 6.55 | 11.73 | 23.52 | 2.52 | 57 |
| South Platte | 06 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0 |
| Sweetwater | 06 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 1.89 | 10.77 | 14.67 | 0.00 | 0 |
| Tongue | 06 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.40 | 1.70 | 6.93 | 14.10 | 0.67 | 168 |
| Upper Bear | 06 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.32 | 0.74 | 3.28 | 7.44 | 19.58 | 0.60 | 81 |
| Upper Green | 06 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.66 | 1.77 | 3.63 | 8.17 | 14.89 | 1.13 | 64 |
| Upper North Platte | 06 Jun 2026 | 0.00 | 0 | 0.06 | 1.94 | 3.45 | 7.08 | 10.39 | 15.18 | 29.99 | 4.45 | 63 |
| Wind | 06 Jun 2026 | 0.00 | 0 | 0.00 | 0.50 | 1.54 | 2.24 | 4.68 | 11.09 | 15.48 | 0.46 | 21 |
| Yellowstone | 06 Jun 2026 | 0.00 | 0 | 0.08 | 2.15 | 6.05 | 8.92 | 13.11 | 16.13 | 26.84 | 4.92 | 55 |