Daily Observations at Hyslop Exp. Stn., Corvallis
March 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 | 49 | 38 | 0.02 | 0 | 49 | 38 | 45 | 37 | 21 | 0 | 0 | 0 |
| 2 | 50 | 44 | 0.56 | 0 | 48 | 43 | 45 | 41 | 18 | 0 | 0 | 0 |
| 3 | 61 | 42 | 0.33 | 0 | 62 | 44 | 55 | 42 | 13 | 0 | 2 | 0 |
| 4 | 55 | 30 | T | 0 | 56 | 39 | 51 | 42 | 22 | 0 | 0 | 0 |
| 5 | 49 | 34 | 0.22 | 0 | 53 | 38 | 48 | 40 | 23 | 0 | 0 | 0 |
| 6 | 48 | 29 | 0.20 | 0 | 51 | 38 | 47 | 41 | 26 | 0 | 0 | 0 |
| 7 | 52 | 32 | 0 | 0 | 61 | 38 | 54 | 39 | 23 | 0 | 0 | 0 |
| 8 | 48 | 32 | 0.12 | 0.25 | 50 | 38 | 46 | 41 | 25 | 0 | 0 | 0 |
| 9 | 45 | 28 | 0 | 0 | 54 | 37 | 49 | 39 | 28 | 0 | 0 | 0 |
| 10 | 45 | 31 | 0.09 | 0 | 51 | 37 | 47 | 38 | 27 | 0 | 0 | 0 |
| 11 | 44 | 29 | 0.01 | 0 | 48 | 36 | 46 | 39 | 28 | 0 | 0 | 0 |
| 12 | 49 | 30 | T | 0 | 53 | 36 | 54 | 38 | 25 | 0 | 0 | 0 |
| 13 | 54 | 27 | 0 | 0 | 54 | 36 | 54 | 38 | 24 | 0 | 0 | 0 |
| 14 | 61 | 29 | 0.01 | 0 | 61 | 36 | 63 | 39 | 20 | 0 | 0 | 0 |
| 15 | 46 | 42 | 0.91 | 0 | 47 | 42 | 46 | 43 | 21 | 0 | 0 | 0 |
| 16 | 52 | 40 | 0.46 | 0 | 53 | 43 | 48 | 43 | 19 | 0 | 0 | 0 |
| 17 | 53 | 39 | 0.25 | 0 | 55 | 42 | 50 | 42 | 19 | 0 | 0 | 0 |
| 18 | 56 | 40 | 0.02 | 0 | 58 | 42 | 52 | 42 | 17 | 0 | 0 | 0 |
| 19 | 60 | 37 | T | 0 | 61 | 46 | 59 | 46 | 16 | 0 | 0 | 0 |
| 20 | 60 | 41 | T | 0 | 61 | 46 | 55 | 47 | 14 | 0 | 1 | 0 |
| 21 | 59 | 39 | 0 | 0 | 63 | 47 | 57 | 48 | 16 | 0 | 0 | 0 |
| 22 | 54 | 39 | 0.12 | 0 | 60 | 46 | 55 | 48 | 18 | 0 | 0 | 0 |
| 23 | 49 | 30 | 0.01 | 0 | 57 | 39 | 52 | 43 | 25 | 0 | 0 | 0 |
| 24 | 45 | 34 | 0.12 | 0 | 48 | 39 | 47 | 41 | 25 | 0 | 0 | 0 |
| 25 | 55 | 43 | 0.02 | 0 | 58 | 45 | 53 | 44 | 16 | 0 | 0 | 0 |
| 26 | 55 | 35 | 0.05 | 0 | 51 | 42 | 53 | 45 | 20 | 0 | 0 | 0 |
| 27 | 56 | 35 | 0 | 0 | 61 | 42 | 55 | 43 | 19 | 0 | 0 | 0 |
| 28 | 61 | 40 | 0 | 0 | 63 | 44 | 57 | 44 | 14 | 0 | 1 | 0 |
| 29 | 53 | 34 | 0.26 | 0 | 55 | 40 | 52 | 40 | 21 | 0 | 0 | 0 |
| 30 | 50 | 28 | 0 | 0 | 57 | 38 | 52 | 41 | 26 | 0 | 0 | 0 |
| 31 | 53 | 33 | 0.03 | 0 | 61 | 38 | 55 | 41 | 22 | 0 | 0 | 0 |
| Average/Total | 52.5 | 35.0 | 3.81 | 0.25 | 55.5 | 40.5 | 51.7 | 41.8 | 651 | 0 | 4 | 0.000 |
| Departure | -2.4 | -2.0 | -0.74 |   |   |   |   |   |   |   |   |   |