Daily Observations at Hyslop Exp. Stn., Corvallis
March 2001
Bold = new daily record set (old record, year)
| Day | Max Temp (F) | Min Temp (F) | Precip (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 | 55 | 30 | 0 | 53 | 36 | 48 | 38 | 22 | 0 | 0 | |
| 2 | 47 | 33 | .51 | 44 | 39 | 44 | 41 | 25 | 0 | 0 | |
| 3 | 51 | 29 | .04 | 56 | 38 | 50 | 40 | 25 | 0 | 0 | |
| 4 | 49 | 32 | .01 | 53 | 38 | 48 | 38 | 24 | 0 | 0 | |
| 5 | 49 | 35 | .10 | 46 | 39 | 44 | 39 | 23 | 0 | 0 | |
| 6 | 65 | 37 | 0 | 61 | 41 | 55 | 39 | 14 | 0 | 1 | |
| 7 | 69 | 37 | 0 | 63 | 42 | 57 | 43 | 12 | 0 | 3 | |
| 8 | 71 | 41 | .03 | 67 | 44 | 59 | 45 | 9 | 0 | 6 | |
| 9 | 50 | 39 | .12 | 53 | 45 | 51 | 46 | 20 | 0 | 0 | |
| 10 | 53 | 33 | .01 | 55 | 43 | 51 | 45 | 22 | 0 | 0 | |
| 11 | 53 | 38 | T | 55 | 43 | 51 | 42 | 19 | 0 | 0 | |
| 12 | 52 | 36 | T | 55 | 43 | 51 | 43 | 21 | 0 | 0 | |
| 13 | 62 | 38 | 0 | 64 | 43 | 58 | 44 | 15 | 0 | 0 | |
| 14 | 57 | 37 | .03 | 63 | 44 | 53 | 47 | 18 | 0 | 0 | |
| 15 | 57 | 37 | .12 | 64 | 44 | 57 | 44 | 18 | 0 | 0 | |
| 16 | 51 | 32 | .09 | 54 | 41 | 51 | 44 | 23 | 0 | 0 | |
| 17 | 45 | 36 | .52 | 47 | 41 | 46 | 43 | 24 | 0 | 0 | |
| 18 | 55 | 44 | .09 | 43 | 44 | 49 | 44 | 15 | 0 | 0 | |
| 19 | 59 | 40 | .01 | 56 | 47 | 52 | 48 | 15 | 0 | 0 | |
| 20 | 57 | 33 | 0 | 64 | 42 | 57 | 45 | 20 | 0 | 0 | |
| 21 | 59 | 35 | 0 | 60 | 42 | 52 | 44 | 18 | 0 | 0 | |
| 22 | 61 | 29 | 0 | 63 | 40 | 56 | 42 | 20 | 0 | 0 | |
| 23 | 66 | 30 | 0 | 66 | 40 | 58 | 41 | 17 | 0 | 0 | |
| 24 | 68 | 37 | 0 | 70 | 41 | 61 | 41 | 12 | 0 | 3 | |
| 25 | 62 | 46 | .37 | 61 | 49 | 57 | 48 | 11 | 0 | 4 | |
| 26 | 56 | 35 | .09 | 60 | 45 | 56 | 48 | 19 | 0 | 0 | |
| 27 | 55 | 35 | .08 | 62 | 44 | 56 | 46 | 20 | 0 | 0 | |
| 28 | 51 | 41 | .60 | 50 | 46 | 48 | 46 | 19 | 0 | 0 | |
| 29 | 54 | 40 | .02 | 54 | 47 | 52 | 46 | 18 | 0 | 0 | |
| 30 | 60 | 45 | T | 66 | 47 | 59 | 47 | 12 | 0 | 3 | |
| 31 | 61 | 49 | .01 | 65 | 50 | 59 | 50 | 10 | 0 | 5 | .053 |
| Average/Total | 56.8 | 36.7 | 2.85 | 57.8 | 42.8 | 53.1 | 43.8 | 560 | 0 | 25 | 0.053 |
| Departure | 1.9 | -0.3 | -1.70 |   |   |   |   |   |   |   |   |