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 | 11 Feb 2026 | 3.13 | 65 | 2.57 | 3.08 | 4.03 | 4.80 | 5.34 | 6.54 | 8.95 | 4.40 | 92 |
| Bighorn | 11 Feb 2026 | 5.42 | 79 | 4.55 | 5.46 | 6.29 | 6.83 | 7.76 | 8.99 | 10.35 | 6.83 | 100 |
| Cheyenne | 11 Feb 2026 | 3.85 | 73 | 2.65 | 3.24 | 4.32 | 5.30 | 5.60 | 7.12 | 8.95 | 4.30 | 81 |
| Laramie | 11 Feb 2026 | 5.29 | 54 | 5.45 | 7.63 | 8.61 | 9.80 | 10.79 | 13.09 | 16.70 | 8.53 | 87 |
| Little Snake | 11 Feb 2026 | 8.55 | 63 | 8.28 | 9.80 | 11.45 | 13.51 | 14.99 | 18.25 | 23.15 | 11.69 | 87 |
| Lower Green | 11 Feb 2026 | 5.79 | 74 | 6.01 | 6.66 | 7.29 | 7.81 | 9.09 | 11.18 | 15.23 | 8.20 | 105 |
| Lower North Platte | 11 Feb 2026 | 2.45 | 36 | 3.45 | 4.87 | 5.83 | 6.85 | 8.38 | 9.60 | 13.88 | 5.53 | 81 |
| Madison | 11 Feb 2026 | 11.90 | 91 | 5.75 | 10.12 | 12.08 | 13.10 | 15.78 | 20.80 | 29.12 | 12.36 | 94 |
| Powder | 11 Feb 2026 | 4.37 | 74 | 3.50 | 4.86 | 5.37 | 5.93 | 6.75 | 7.64 | 9.28 | 5.06 | 85 |
| Shoshone | 11 Feb 2026 | 12.12 | 103 | 6.73 | 9.15 | 10.70 | 11.80 | 13.08 | 17.45 | 22.68 | 11.12 | 94 |
| Snake | 11 Feb 2026 | 12.97 | 90 | 9.16 | 10.60 | 12.83 | 14.37 | 16.20 | 19.19 | 27.25 | 14.70 | 102 |
| South Platte | 11 Feb 2026 | 0.20 | 4 | 1.00 | 2.11 | 3.39 | 5.50 | 5.78 | 6.60 | 8.90 | 2.30 | 42 |
| Sweetwater | 11 Feb 2026 | 7.33 | 88 | 5.47 | 6.78 | 7.55 | 8.33 | 9.30 | 13.34 | 20.13 | 9.20 | 110 |
| Tongue | 11 Feb 2026 | 4.00 | 57 | 3.81 | 5.64 | 6.76 | 6.96 | 8.09 | 9.29 | 11.88 | 6.77 | 97 |
| Upper Bear | 11 Feb 2026 | 7.97 | 74 | 7.62 | 8.41 | 9.89 | 10.72 | 13.84 | 17.67 | 23.56 | 10.26 | 96 |
| Upper Green | 11 Feb 2026 | 9.82 | 94 | 6.87 | 8.32 | 9.51 | 10.50 | 11.88 | 15.11 | 22.51 | 11.16 | 106 |
| Upper North Platte | 11 Feb 2026 | 9.55 | 64 | 10.15 | 11.84 | 13.33 | 14.81 | 16.97 | 20.11 | 25.12 | 13.45 | 91 |
| Wind | 11 Feb 2026 | 7.94 | 99 | 5.91 | 7.00 | 7.77 | 8.00 | 9.34 | 11.24 | 15.49 | 8.68 | 108 |
| Yellowstone | 11 Feb 2026 | 16.23 | 113 | 8.57 | 10.78 | 12.25 | 14.38 | 15.60 | 19.50 | 26.99 | 12.98 | 90 |