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 | 04 Nov 2025 | 0.13 | 48 | 0.00 | 0.00 | 0.00 | 0.27 | 0.58 | 2.00 | 3.55 | 0.37 | 137 |
| Bighorn | 04 Nov 2025 | 1.17 | 71 | 0.04 | 0.83 | 1.09 | 1.64 | 2.11 | 2.73 | 3.66 | 1.00 | 61 |
| Cheyenne | 04 Nov 2025 | 0.20 | 50 | 0.00 | 0.00 | 0.00 | 0.40 | 0.60 | 2.31 | 3.55 | 0.20 | 50 |
| Laramie | 04 Nov 2025 | 0.50 | 38 | 0.15 | 0.55 | 0.79 | 1.33 | 1.89 | 2.47 | 3.10 | 0.71 | 53 |
| Little Snake | 04 Nov 2025 | 0.25 | 27 | 0.12 | 0.26 | 0.59 | 0.93 | 1.39 | 2.36 | 3.32 | 0.69 | 74 |
| Lower Green | 04 Nov 2025 | 0.81 | 135 | 0.04 | 0.14 | 0.50 | 0.60 | 1.00 | 1.59 | 2.90 | 1.11 | 185 |
| Lower North Platte | 04 Nov 2025 | 0.13 | 14 | 0.00 | 0.10 | 0.51 | 0.95 | 1.51 | 2.81 | 4.72 | 1.10 | 116 |
| Madison | 04 Nov 2025 | 0.94 | 73 | 0.02 | 0.47 | 0.90 | 1.28 | 1.68 | 2.65 | 4.02 | 1.54 | 120 |
| Powder | 04 Nov 2025 | 1.01 | 101 | 0.00 | 0.29 | 0.74 | 1.00 | 1.61 | 2.21 | 3.47 | 0.66 | 66 |
| Shoshone | 04 Nov 2025 | 1.55 | 84 | 0.07 | 0.64 | 1.30 | 1.85 | 2.57 | 3.51 | 4.42 | 0.70 | 38 |
| Snake | 04 Nov 2025 | 1.20 | 86 | 0.08 | 0.67 | 0.98 | 1.40 | 1.62 | 2.43 | 3.51 | 0.78 | 56 |
| South Platte | 04 Nov 2025 | 0.00 | 0 | 0.00 | 0.00 | 0.10 | 0.40 | 0.70 | 1.48 | 2.50 | 0.10 | 25 |
| Sweetwater | 04 Nov 2025 | 1.20 | 133 | 0.00 | 0.13 | 0.76 | 0.90 | 1.40 | 2.27 | 5.55 | 1.30 | 144 |
| Tongue | 04 Nov 2025 | 0.67 | 48 | 0.03 | 0.40 | 1.19 | 1.39 | 2.25 | 2.90 | 3.42 | 1.00 | 72 |
| Upper Bear | 04 Nov 2025 | 0.55 | 93 | 0.03 | 0.16 | 0.46 | 0.59 | 1.12 | 1.99 | 3.99 | 0.81 | 137 |
| Upper Green | 04 Nov 2025 | 0.83 | 80 | 0.06 | 0.50 | 0.71 | 1.04 | 1.59 | 2.09 | 3.07 | 0.71 | 68 |
| Upper North Platte | 04 Nov 2025 | 0.74 | 39 | 0.28 | 0.81 | 1.20 | 1.89 | 2.96 | 3.50 | 4.12 | 1.14 | 60 |
| Wind | 04 Nov 2025 | 1.07 | 74 | 0.21 | 0.62 | 1.15 | 1.44 | 2.04 | 2.85 | 3.84 | 1.26 | 88 |
| Yellowstone | 04 Nov 2025 | 1.87 | 90 | 0.03 | 0.92 | 1.59 | 2.07 | 2.62 | 3.38 | 5.23 | 0.95 | 46 |