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 | 08 Feb 2026 | 3.17 | 69 | 2.03 | 2.83 | 3.87 | 4.57 | 5.21 | 6.22 | 8.95 | 4.37 | 96 |
| Bighorn | 08 Feb 2026 | 5.37 | 81 | 4.54 | 5.30 | 6.09 | 6.60 | 7.50 | 8.85 | 10.26 | 6.80 | 103 |
| Cheyenne | 08 Feb 2026 | 3.85 | 76 | 2.10 | 3.10 | 4.04 | 5.05 | 5.41 | 6.83 | 8.95 | 4.25 | 84 |
| Laramie | 08 Feb 2026 | 5.20 | 54 | 4.95 | 7.26 | 8.44 | 9.61 | 10.43 | 12.91 | 16.52 | 8.44 | 88 |
| Little Snake | 08 Feb 2026 | 8.30 | 63 | 7.92 | 9.76 | 10.88 | 13.19 | 14.60 | 17.63 | 23.13 | 11.38 | 86 |
| Lower Green | 08 Feb 2026 | 6.13 | 81 | 5.86 | 6.64 | 7.03 | 7.53 | 8.74 | 11.17 | 15.10 | 8.13 | 108 |
| Lower North Platte | 08 Feb 2026 | 2.52 | 38 | 2.10 | 4.84 | 5.69 | 6.70 | 8.21 | 9.04 | 13.82 | 5.50 | 82 |
| Madison | 08 Feb 2026 | 11.28 | 87 | 5.67 | 9.83 | 11.85 | 12.90 | 15.58 | 20.35 | 28.96 | 12.24 | 95 |
| Powder | 08 Feb 2026 | 4.27 | 74 | 3.13 | 4.67 | 5.11 | 5.76 | 6.54 | 7.39 | 9.23 | 5.04 | 88 |
| Shoshone | 08 Feb 2026 | 11.42 | 99 | 6.68 | 8.84 | 10.55 | 11.53 | 12.80 | 17.29 | 22.50 | 10.88 | 94 |
| Snake | 08 Feb 2026 | 12.45 | 89 | 8.66 | 10.36 | 12.48 | 14.00 | 15.30 | 18.79 | 27.10 | 14.44 | 103 |
| South Platte | 08 Feb 2026 | 0.20 | 4 | 1.00 | 2.01 | 3.42 | 5.50 | 5.78 | 6.56 | 8.70 | 2.30 | 42 |
| Sweetwater | 08 Feb 2026 | 7.33 | 95 | 5.63 | 6.53 | 7.42 | 7.73 | 9.19 | 12.41 | 18.90 | 9.07 | 117 |
| Tongue | 08 Feb 2026 | 4.06 | 60 | 3.80 | 5.43 | 6.62 | 6.80 | 7.95 | 9.13 | 11.45 | 6.76 | 99 |
| Upper Bear | 08 Feb 2026 | 7.84 | 77 | 7.46 | 7.94 | 9.61 | 10.17 | 13.11 | 17.48 | 23.42 | 10.21 | 100 |
| Upper Green | 08 Feb 2026 | 9.75 | 96 | 6.51 | 8.20 | 9.33 | 10.20 | 11.36 | 14.94 | 22.37 | 11.05 | 108 |
| Upper North Platte | 08 Feb 2026 | 9.34 | 65 | 9.48 | 11.39 | 13.01 | 14.43 | 16.23 | 20.10 | 25.05 | 13.15 | 91 |
| Wind | 08 Feb 2026 | 7.88 | 101 | 5.76 | 6.65 | 7.58 | 7.78 | 9.12 | 11.14 | 15.34 | 8.61 | 111 |
| Yellowstone | 08 Feb 2026 | 15.25 | 109 | 8.47 | 10.37 | 12.04 | 14.03 | 14.98 | 18.13 | 26.79 | 12.80 | 91 |