Daily Observations at Hyslop Exp. Stn., Corvallis
March 2002
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 | 53 | 27 | 0 | 56 | 37 | 49 | 38 | 25 | 0 | 0 | |
| 2 | 53 | 30 | 0 | 57 | 36 | 50 | 38 | 23 | 0 | 0 | |
| 3 | 57 | 37 | 0 | 55 | 57 | 50 | 38 | 18 | 0 | 0 | |
| 4 | 62 | 28 | 0 | 59 | 36 | 53 | 38 | 20 | 0 | 0 | |
| 5 | 63 | 34 | .03 | 59 | 37 | 53 | 40 | 16 | 0 | 0 | |
| 6 | 48 | 42 | 1.27 | 47 | 44 | 46 | 44 | 20 | 0 | 0 | |
| 7 | 48 | 29 | .32 | 48 | 38 | 47 | 39 | 26 | 0 | 0 | |
| 8 | 44 | 31 | .08 | 50 | 37 | 47 | 37 | 27 | 0 | 0 | |
| 9 | 45 | 31 | .01 | 47 | 37 | 46 | 38 | 27 | 0 | 0 | |
| 10 | 46 | 36 | .20 | 47 | 38 | 44 | 38 | 24 | 0 | 0 | |
| 11 | 53 | 44 | .23 | 49 | 43 | 47 | 41 | 16 | 0 | 0 | |
| 12 | 53 | 40 | .97 | 51 | 43 | 49 | 45 | 18 | 0 | 0 | |
| 13 | 48 | 37 | .38 | 51 | 43 | 48 | 43 | 22 | 0 | 0 | |
| 14 | 45 | 34 | .29 | 49 | 41 | 47 | 41 | 25 | 0 | 0 | |
| 15 | 48 | 36 | .10 | 54 | 41 | 49 | 41 | 23 | 0 | 0 | |
| 16 | 46 | 33 | .23 | 51 | 40 | 47 | 42 | 25 | 0 | 0 | |
| 17 | 43 | 31 | .22 | 53 | 38 | 47 | 39 | 28 | 0 | 0 | |
| 18 | 47 | 27 | T | 54 | 37 | 48 | 38 | 28 | 0 | 0 | |
| 19 | 46 | 34 | .78 | 43 | 37 | 42 | 38 | 25 | 0 | 0 | |
| 20 | 53 | 38 | .01 | 53 | 43 | 49 | 41 | 19 | 0 | 0 | |
| 21 | 59 | 39 | 0 | 59 | 42 | 54 | 44 | 16 | 0 | 0 | |
| 22 | 54 | 37 | 0 | 56 | 41 | 51 | 43 | 19 | 0 | 0 | |
| 23 | 51 | 37 | .01 | 54 | 40 | 50 | 41 | 21 | 0 | 0 | |
| 24 | 62 | 41 | .5 | 68 | 43 | 58 | 43 | 13 | 0 | 2 | |
| 25 | 55 | 30 | .01 | 59 | 40 | 54 | 44 | 22 | 0 | 0 | |
| 26 | 60 | 34 | 0 | 67 | 39 | 59 | 42 | 18 | 0 | 0 | |
| 27 | 55 | 32 | 0 | 62 | 43 | 56 | 45 | 21 | 0 | 0 | |
| 28 | 56 | 39 | 0 | 59 | 44 | 56 | 44 | 17 | 0 | 0 | |
| 29 | 56 | 35 | 0 | 55 | 44 | 52 | 46 | 19 | 0 | 0 | .09 |
| 30 | 59 | 36 | 0 | 68 | 43 | 59 | 44 | 17 | 0 | 0 | |
| 31 | 59 | 40 | 0 | 67 | 45 | 60 | 46 | 15 | 0 | 0 | |
| Average/Total | 52.5 | 34.8 | 5.64 | 55.1 | 40.9 | 50.5 | 41.3 | 653 | 0 | 2 | 0.090 |
| Departure | -2.4 | -2.2 | 1.09 |   |   |   |   |   |   |   |   |