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 | 07 Feb 2026 | 3.13 | 69 | 2.03 | 2.81 | 3.85 | 4.53 | 4.95 | 6.09 | 9.00 | 4.37 | 96 |
| Bighorn | 07 Feb 2026 | 5.40 | 82 | 4.52 | 5.27 | 5.97 | 6.55 | 7.45 | 8.77 | 10.25 | 6.67 | 102 |
| Cheyenne | 07 Feb 2026 | 3.80 | 76 | 2.10 | 3.10 | 4.04 | 5.00 | 5.25 | 6.75 | 9.00 | 4.25 | 85 |
| Laramie | 07 Feb 2026 | 5.21 | 54 | 4.92 | 7.24 | 8.28 | 9.56 | 10.32 | 12.71 | 16.48 | 8.14 | 85 |
| Little Snake | 07 Feb 2026 | 8.30 | 63 | 7.78 | 9.72 | 10.79 | 13.12 | 14.31 | 17.17 | 23.12 | 10.95 | 83 |
| Lower Green | 07 Feb 2026 | 6.13 | 82 | 5.54 | 6.61 | 6.96 | 7.44 | 8.49 | 10.73 | 15.10 | 7.81 | 105 |
| Lower North Platte | 07 Feb 2026 | 2.52 | 38 | 2.10 | 4.83 | 5.68 | 6.67 | 8.11 | 9.02 | 13.80 | 5.40 | 81 |
| Madison | 07 Feb 2026 | 11.30 | 88 | 5.67 | 9.44 | 11.78 | 12.80 | 15.53 | 19.69 | 28.96 | 11.46 | 90 |
| Powder | 07 Feb 2026 | 4.31 | 75 | 3.09 | 4.62 | 5.04 | 5.74 | 6.57 | 7.39 | 9.23 | 4.99 | 87 |
| Shoshone | 07 Feb 2026 | 11.45 | 100 | 6.65 | 8.68 | 10.26 | 11.42 | 12.60 | 16.28 | 22.50 | 10.27 | 90 |
| Snake | 07 Feb 2026 | 12.46 | 90 | 8.46 | 10.34 | 12.47 | 13.90 | 15.09 | 18.63 | 27.09 | 13.85 | 100 |
| South Platte | 07 Feb 2026 | 0.20 | 4 | 1.00 | 2.00 | 3.38 | 5.30 | 5.75 | 6.37 | 8.50 | 2.00 | 38 |
| Sweetwater | 07 Feb 2026 | 7.37 | 97 | 5.60 | 6.48 | 7.32 | 7.63 | 8.83 | 12.12 | 17.47 | 8.67 | 114 |
| Tongue | 07 Feb 2026 | 4.11 | 61 | 3.76 | 5.38 | 6.57 | 6.76 | 7.84 | 9.11 | 11.25 | 6.69 | 99 |
| Upper Bear | 07 Feb 2026 | 7.83 | 79 | 6.80 | 7.93 | 9.28 | 9.97 | 12.87 | 17.12 | 23.41 | 9.47 | 95 |
| Upper Green | 07 Feb 2026 | 9.73 | 96 | 6.08 | 8.15 | 9.31 | 10.09 | 11.20 | 14.92 | 22.37 | 10.59 | 105 |
| Upper North Platte | 07 Feb 2026 | 9.36 | 66 | 9.40 | 11.38 | 12.84 | 14.24 | 15.92 | 20.07 | 25.03 | 12.81 | 90 |
| Wind | 07 Feb 2026 | 7.88 | 102 | 5.76 | 6.50 | 7.53 | 7.69 | 9.02 | 10.79 | 15.34 | 8.14 | 106 |
| Yellowstone | 07 Feb 2026 | 15.28 | 110 | 8.47 | 10.34 | 12.00 | 13.93 | 14.80 | 17.95 | 26.80 | 12.09 | 87 |