Daily Observations at Hyslop Exp. Stn., Corvallis
February 2009
Bold = new daily record set (old record, year)
| Day | Max Temp (F) | Min Temp (F) | Precip (in) | Snow (in) | 2 in soil Max | 2 in soil Min | 4 in soil Max | 4 in soil Min | Heating Deg. Days | Cooling Deg. Days | Growing Deg. Days | Evaporation (in.) |
| 1 | 47 | 26 | 0 | 0 | 48 | 35 | 43 | 37 | 28 | 0 | 0 | 0 |
| 2 | 44 | 27 | 0 | 0 | 44 | 35 | 41 | 35 | 29 | 0 | 0 | 0 |
| 3 | 55 | 27 | 0 | 0 | 49 | 35 | 45 | 35 | 24 | 0 | 0 | 0 |
| 4 | 56 | 27 | 0 | 0 | 49 | 35 | 44 | 37 | 23 | 0 | 0 | 0 |
| 5 | 56 | 29 | 0.01 | 0 | 52 | 36 | 46 | 36 | 22 | 0 | 0 | 0 |
| 6 | 50 | 36 | 0.34 | 0 | 47 | 38 | 44 | 39 | 22 | 0 | 0 | 0 |
| 7 | 51 | 40 | 0.07 | 0 | 48 | 43 | 46 | 43 | 19 | 0 | 0 | 0 |
| 8 | 49 | 32 | T | 0 | 49 | 41 | 47 | 43 | 24 | 0 | 0 | 0 |
| 9 | 49 | 27 | 0 | 0 | 43 | 36 | 44 | 39 | 27 | 0 | 0 | 0 |
| 10 | 42 | 28 | 0.08 | T | 45 | 36 | 43 | 37 | 30 | 0 | 0 | 0 |
| 11 | 40 | 32 | 0.21 | 0 | 39 | 36 | 38 | 36 | 29 | 0 | 0 | 0 |
| 12 | 45 | 27 | 0 | 0 | 46 | 36 | 43 | 38 | 29 | 0 | 0 | 0 |
| 13 | 44 | 30 | 0.19 | 0 | 43 | 35 | 40 | 37 | 28 | 0 | 0 | 0 |
| 14 | 46 | 32 | 0.01 | 0 | 47 | 37 | 44 | 37 | 26 | 0 | 0 | 0 |
| 15 | 47 | 32 | 0.11 | 0 | 46 | 36 | 43 | 36 | 25 | 0 | 0 | 0 |
| 16 | 52 | 38 | 0.01 | 0 | 51 | 39 | 47 | 39 | 20 | 0 | 0 | 0 |
| 17 | 50 | 38 | 0.04 | 0 | 50 | 39 | 46 | 40 | 21 | 0 | 0 | 0 |
| 18 | 56 | 31 | 0.02 | 0 | 55 | 39 | 49 | 42 | 21 | 0 | 0 | 0 |
| 19 | 55 | 33 | T | 0 | 56 | 39 | 50 | 39 | 21 | 0 | 0 | 0 |
| 20 | 52 | 30 | T | 0 | 51 | 38 | 47 | 41 | 24 | 0 | 0 | 0 |
| 21 | 57 | 32 | T | 0 | 57 | 38 | 51 | 39 | 20 | 0 | 0 | 0 |
| 22 | 53 | 37 | 0.08 | 0 | 53 | 38 | 48 | 39 | 20 | 0 | 0 | 0 |
| 23 | 52 | 39 | 0.32 | 0 | 51 | 42 | 48 | 42 | 19 | 0 | 0 | 0 |
| 24 | 53 | 43 | 0.94 | 0 | 50 | 45 | 48 | 44 | 17 | 0 | 0 | 0 |
| 25 | 54 | 45 | 0.27 | 0 | 52 | 46 | 49 | 45 | 15 | 0 | 0 | 0 |
| 26 | 51 | 32 | 0.61 | T | 53 | 38 | 50 | 42 | 23 | 0 | 0 | 0 |
| 27 | 48 | 28 | 0 | 0 | 56 | 37 | 50 | 40 | 27 | 0 | 0 | 0 |
| 28 | 45 | 30 | T | 0 | 49 | 37 | 46 | 38 | 27 | 0 | 0 | 0 |
| Average/Total | 50.0 | 32.4 | 3.31 | 0.00 | 49.2 | 38.0 | 45.7 | 39.1 | 660 | 0 | 0 | 0.000 |
| Departure | -0.4 | -2.7 | -1.73 |   |   |   |   |   |   |   |   |   |