| Libby Dam and Lake Koocanusa near Libby (LBQM) | ||||
|---|---|---|---|---|
| Date | Min | Avg | Max | >68 |
| May 1 | 42.7 | 43.7 | 44.8 | 0/24 |
| May 2 | 43.4 | 44.4 | 46.2 | 0/24 |
| May 3 | 44.2 | 44.8 | 45.1 | 0/24 |
| May 4 | 43.5 | 44.5 | 45.6 | 0/24 |
| May 5 | 42.9 | 43.8 | 45.0 | 0/24 |
| May 6 | 43.2 | 44.0 | 44.8 | 0/24 |
| May 7 | 43.7 | 44.2 | 45.2 | 0/24 |
| May 8 | 43.8 | 44.7 | 45.6 | 0/24 |
| May 9 | 44.2 | 46.2 | 48.0 | 0/24 |
| May 10 | 46.7 | 48.2 | 49.1 | 0/24 |
| May 11 | 47.4 | 48.7 | 49.9 | 0/20 |
| May 12 | 45.4 | 46.8 | 47.8 | 0/24 |
| May 13 | 45.5 | 46.1 | 47.1 | 0/24 |
| May 14 | 45.4 | 46.0 | 46.5 | 0/24 |
| May 15 | 45.1 | 45.8 | 46.8 | 0/24 |
| May 16 | 43.7 | 44.9 | 45.4 | 0/24 |
| May 17 | 42.3 | 43.6 | 44.2 | 0/24 |
| May 18 | 41.6 | 42.3 | 43.0 | 0/24 |
| May 19 | 40.9 | 41.5 | 42.1 | 0/24 |
| May 20 | 41.7 | 41.9 | 42.4 | 0/24 |
| May 21 | 40.2 | 41.0 | 41.7 | 0/23 |
| May 22 | 39.8 | 40.5 | 41.0 | 0/24 |
| May 23 | 39.3 | 39.7 | 40.2 | 0/24 |
| May 24 | 39.7 | 40.6 | 41.9 | 0/23 |
| May 25 | 41.8 | 43.4 | 44.3 | 0/23 |
| May 26 | 44.1 | 45.2 | 46.3 | 0/23 |
| May 27 | 46.0 | 47.6 | 49.4 | 0/22 |
| May 28 | 49.1 | 49.5 | 50.1 | 0/22 |
| May 29 | 49.5 | 50.7 | 52.1 | 0/22 |
| May 30 | 50.7 | 51.7 | 52.4 | 0/16 |
| May 31 | 49.0 | 49.7 | 50.8 | 0/12 |
| >68 | 0 | 0 | 0 | 0/ 710 |
Temperature in Degrees Fahrenheit
| <32 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 | 64 | 66 | 68 | 70 | 72 | 74 | 76 | 78 | 80 | 82 | 84 | 86 | >86 |