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 | 03 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 | 0 |
| Bighorn | 03 Jun 2026 | 0.00 | 0 | 0.00 | 0.76 | 1.48 | 2.15 | 5.43 | 7.17 | 16.14 | 2.30 | 107 |
| Cheyenne | 03 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 | 0 |
| Laramie | 03 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.42 | 1.49 | 5.61 | 8.64 | 20.05 | 0.34 | 23 |
| Little Snake | 03 Jun 2026 | 0.00 | 0 | 0.15 | 0.70 | 2.07 | 3.45 | 5.51 | 9.15 | 19.18 | 1.95 | 57 |
| Lower Green | 03 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.60 | 1.52 | 3.34 | 4.76 | 12.31 | 0.22 | 14 |
| Lower North Platte | 03 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 1.52 | 13.55 | 0.00 | 0 |
| Madison | 03 Jun 2026 | 0.00 | 0 | 0.00 | 0.23 | 4.03 | 6.00 | 7.52 | 13.63 | 21.70 | 1.78 | 30 |
| Powder | 03 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.05 | 0.69 | 1.93 | 4.56 | 12.10 | 0.43 | 62 |
| Shoshone | 03 Jun 2026 | 0.00 | 0 | 0.00 | 2.15 | 4.32 | 6.10 | 11.79 | 18.01 | 24.00 | 2.95 | 48 |
| Snake | 03 Jun 2026 | 0.00 | 0 | 0.07 | 1.10 | 3.03 | 5.75 | 8.33 | 14.18 | 26.02 | 3.02 | 53 |
| South Platte | 03 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0 |
| Sweetwater | 03 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.83 | 3.23 | 14.13 | 17.63 | 0.00 | 0 |
| Tongue | 03 Jun 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.37 | 0.71 | 2.92 | 8.57 | 16.26 | 0.86 | 121 |
| Upper Bear | 03 Jun 2026 | 0.00 | 0 | 0.00 | 0.02 | 0.76 | 1.34 | 4.48 | 8.45 | 22.09 | 0.80 | 60 |
| Upper Green | 03 Jun 2026 | 0.00 | 0 | 0.00 | 0.02 | 1.55 | 2.66 | 4.56 | 10.38 | 17.24 | 1.59 | 60 |
| Upper North Platte | 03 Jun 2026 | 0.00 | 0 | 0.41 | 2.93 | 5.39 | 8.41 | 12.07 | 17.22 | 33.23 | 5.59 | 66 |
| Wind | 03 Jun 2026 | 0.00 | 0 | 0.00 | 0.86 | 2.06 | 2.81 | 5.85 | 12.14 | 17.57 | 0.74 | 26 |
| Yellowstone | 03 Jun 2026 | 0.00 | 0 | 0.23 | 3.56 | 7.73 | 10.67 | 14.70 | 18.07 | 28.29 | 5.95 | 56 |