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 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0 |
| Bighorn | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.09 | 0.16 | 1.18 | 4.54 | 9.89 | 0.32 | 200 |
| Cheyenne | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0 |
| Laramie | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.12 | 1.80 | 14.75 | 0.00 | 0 |
| Little Snake | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.08 | 1.02 | 2.42 | 4.04 | 10.00 | 0.07 | 7 |
| Lower Green | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.68 | 3.10 | 5.57 | 0.00 | 0 |
| Lower North Platte | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 6.05 | 0.00 | 0 |
| Madison | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.71 | 2.48 | 3.70 | 7.24 | 14.62 | 0.00 | 0 |
| Powder | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 2.20 | 4.24 | 0.00 | 0 |
| Shoshone | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.25 | 3.37 | 5.97 | 11.87 | 17.58 | 0.00 | 0 |
| Snake | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.10 | 0.66 | 2.17 | 3.18 | 7.14 | 18.65 | 0.43 | 20 |
| South Platte | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0 |
| Sweetwater | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 5.46 | 7.93 | 0.00 | 0 |
| Tongue | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.19 | 2.40 | 7.73 | 0.00 | 0 |
| Upper Bear | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.82 | 4.24 | 13.00 | 0.01 | 0 |
| Upper Green | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.27 | 1.88 | 4.36 | 10.55 | 0.01 | 4 |
| Upper North Platte | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.05 | 0.92 | 3.11 | 6.50 | 11.46 | 19.68 | 1.05 | 34 |
| Wind | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.07 | 1.18 | 2.84 | 6.49 | 12.57 | 0.00 | 0 |
| Yellowstone | 15 Jun 2026 | 0.00 | 0 | 0.00 | 0.14 | 1.22 | 5.70 | 8.74 | 13.75 | 22.80 | 0.24 | 4 |