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 | 14 Nov 2025 | 0.17 | 25 | 0.00 | 0.00 | 0.25 | 0.67 | 0.87 | 2.62 | 3.65 | 0.00 | 0 |
| Bighorn | 14 Nov 2025 | 1.24 | 57 | 0.42 | 0.92 | 1.79 | 2.17 | 2.68 | 3.61 | 4.36 | 1.61 | 74 |
| Cheyenne | 14 Nov 2025 | 0.25 | 29 | 0.00 | 0.00 | 0.37 | 0.85 | 0.98 | 2.86 | 3.65 | 0.00 | 0 |
| Laramie | 14 Nov 2025 | 0.39 | 19 | 0.05 | 1.07 | 1.66 | 2.03 | 2.63 | 3.33 | 6.12 | 1.94 | 96 |
| Little Snake | 14 Nov 2025 | 0.35 | 17 | 0.12 | 0.60 | 1.57 | 2.09 | 2.70 | 3.20 | 4.92 | 1.77 | 85 |
| Lower Green | 14 Nov 2025 | 0.92 | 72 | 0.10 | 0.70 | 1.05 | 1.27 | 1.76 | 2.66 | 3.79 | 1.65 | 130 |
| Lower North Platte | 14 Nov 2025 | 0.23 | 15 | 0.00 | 0.28 | 0.77 | 1.55 | 2.17 | 3.39 | 5.28 | 1.90 | 123 |
| Madison | 14 Nov 2025 | 1.14 | 49 | 0.22 | 1.18 | 1.78 | 2.34 | 2.88 | 4.19 | 5.92 | 2.06 | 88 |
| Powder | 14 Nov 2025 | 1.00 | 65 | 0.00 | 0.69 | 1.31 | 1.54 | 1.90 | 2.91 | 4.45 | 1.04 | 68 |
| Shoshone | 14 Nov 2025 | 2.20 | 82 | 0.22 | 1.50 | 2.24 | 2.67 | 3.74 | 5.09 | 6.48 | 1.17 | 44 |
| Snake | 14 Nov 2025 | 1.57 | 63 | 0.15 | 1.43 | 1.95 | 2.50 | 2.95 | 3.89 | 5.83 | 1.40 | 56 |
| South Platte | 14 Nov 2025 | 0.10 | 14 | 0.00 | 0.00 | 0.12 | 0.70 | 0.80 | 1.48 | 2.70 | 0.80 | 114 |
| Sweetwater | 14 Nov 2025 | 1.27 | 73 | 0.00 | 0.77 | 1.15 | 1.73 | 2.37 | 3.43 | 5.75 | 1.93 | 112 |
| Tongue | 14 Nov 2025 | 0.61 | 32 | 0.20 | 0.67 | 1.76 | 1.93 | 2.77 | 3.65 | 4.14 | 1.60 | 83 |
| Upper Bear | 14 Nov 2025 | 0.51 | 36 | 0.11 | 0.63 | 1.21 | 1.43 | 2.07 | 3.21 | 5.54 | 1.29 | 90 |
| Upper Green | 14 Nov 2025 | 1.09 | 57 | 0.21 | 1.17 | 1.62 | 1.92 | 2.37 | 3.12 | 6.08 | 1.17 | 61 |
| Upper North Platte | 14 Nov 2025 | 0.76 | 24 | 0.39 | 1.33 | 2.56 | 3.12 | 3.80 | 4.88 | 7.34 | 2.56 | 82 |
| Wind | 14 Nov 2025 | 1.27 | 60 | 0.40 | 1.17 | 1.97 | 2.11 | 2.94 | 3.73 | 5.16 | 1.93 | 91 |
| Yellowstone | 14 Nov 2025 | 2.51 | 81 | 0.43 | 1.93 | 2.74 | 3.10 | 4.05 | 5.09 | 7.28 | 1.57 | 51 |