Brown Duck Freeze Details
| Station Name | Station ID | Latitude | Longitude | Country | State | Period | Years |
| Brown Duck | USS0010J30S | 40.58 | -110.59 | United States | Utah | 1979-2026 | 39 |
| Last spring freeze | |||||
| Early | Early Year | Avg | Median | Late | Late Year |
| 20-May | 2025 | 22-Jun | 20-Jun | 24-Jul | 1993 |
| First fall freeze | |||||
| Early | Early Year | Avg | Median | Late | Late Year |
| 26-Jul | 1993 | 03-Sep | 06-Sep | 01-Oct | 2022 |
| Freeze-free Season | |||||
| Short | Short Year | Avg | Median | Long | Long Year |
| 2 | 1993 | 74.7 | 79.0 | 125 | 2025 |