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 | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0 |
| Bighorn | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.45 | 1.50 | 0.00 | 0 |
| Cheyenne | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0 |
| Laramie | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.68 | 0.00 | 0 |
| Little Snake | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.44 | 0.00 | 0 |
| Lower Green | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.37 | 0.00 | 0 |
| Lower North Platte | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 1.32 | 0.05 | 0 |
| Madison | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 1.06 | 0.00 | 0 |
| Powder | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.26 | 1.33 | 0.00 | 0 |
| Shoshone | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.33 | 2.25 | 0.00 | 0 |
| Snake | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 | 0.75 | 0.00 | 0 |
| South Platte | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.70 | 0.00 | 0 |
| Sweetwater | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 1.50 | 0.00 | 0 |
| Tongue | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.28 | 2.10 | 0.00 | 0 |
| Upper Bear | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.66 | 0.00 | 0 |
| Upper Green | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.37 | 0.01 | 0 |
| Upper North Platte | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.11 | 0.86 | 0.02 | 0 |
| Wind | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.29 | 1.04 | 0.00 | 0 |
| Yellowstone | 23 Sep 2026 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.34 | 2.48 | 0.00 | 0 |