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 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0 |
| Bighorn | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.30 | 0.51 | 1.79 | 5.40 | 11.24 | 0.80 | 157 |
| Cheyenne | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0 |
| Laramie | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.01 | 0.49 | 3.58 | 15.53 | 0.01 | 100 |
| Little Snake | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.48 | 1.60 | 2.90 | 5.63 | 13.22 | 0.54 | 34 |
| Lower Green | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.06 | 1.19 | 3.46 | 6.83 | 0.00 | 0 |
| Lower North Platte | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 8.03 | 0.00 | 0 |
| Madison | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 1.76 | 3.16 | 4.43 | 8.92 | 16.52 | 0.00 | 0 |
| Powder | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.45 | 2.58 | 6.70 | 0.00 | 0 |
| Shoshone | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.04 | 0.60 | 4.10 | 6.93 | 13.97 | 19.68 | 0.15 | 4 |
| Snake | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.25 | 0.98 | 2.88 | 4.15 | 9.38 | 20.29 | 0.91 | 32 |
| South Platte | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0 |
| Sweetwater | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.31 | 7.04 | 10.00 | 0.00 | 0 |
| Tongue | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.48 | 2.74 | 10.39 | 0.00 | 0 |
| Upper Bear | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.14 | 1.43 | 5.51 | 15.16 | 0.01 | 7 |
| Upper Green | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.03 | 0.62 | 2.37 | 5.45 | 11.98 | 0.14 | 23 |
| Upper North Platte | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.35 | 1.67 | 4.53 | 7.11 | 13.19 | 22.47 | 1.99 | 44 |
| Wind | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.49 | 1.49 | 3.95 | 7.61 | 15.79 | 0.00 | 0 |
| Yellowstone | 12 Jun 2026 | 0.00 | 0 | 0.00 | 0.41 | 2.26 | 7.15 | 10.06 | 14.97 | 24.26 | 1.06 | 15 |