Daily Observations at Hyslop Exp. Stn., Corvallis
August 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 | 76 | 51 | 0 | 94 | 68 | 84 | 65 | 1 | 0 | 14 | .253 |
| 2 | 82 | 51 | 0 | 97 | 65 | 88 | 67 | 0 | 2 | 17 | .291 |
| 3 | 82 | 53 | 0 | 100 | 69 | 90 | 70 | 0 | 3 | 18 | .279 |
| 4 | 77 | 57 | .01 | 88 | 70 | 80 | 71 | 0 | 2 | 17 | .182 |
| 5 | 76 | 46 | 0 | 92 | 63 | 83 | 68 | 4 | 0 | 11 | .200 |
| 6 | 83 | 50 | 0 | 97 | 64 | 89 | 67 | 0 | 2 | 17 | .291 |
| 7 | 86 | 59 | 0 | 100 | 67 | 92 | 69 | 0 | 8 | 23 | .274 |
| 8 | 85 | 51 | 0 | 99 | 68 | 91 | 72 | 0 | 3 | 18 | .381 |
| 9 | 90 | 52 | 0 | 100 | 68 | 93 | 71 | 0 | 6 | 21 | .320 |
| 10 | 98 | 52 | 0 | 102 | 71 | 93 | 73 | 0 | 10 | 25 | .231 |
| 11 | 89 | 49 | 0 | 104 | 70 | 94 | 74 | 0 | 4 | 19 | .305 |
| 12 | 90 | 53 | 0 | 103 | 70 | 93 | 73 | 0 | 7 | 22 | .269 |
| 13 | 95 | 51 | 0 | 104 | 70 | 95 | 73 | 0 | 8 | 23 | .336 |
| 14 | 88 | 51 | 0 | 102 | 71 | 94 | 74 | 0 | 5 | 20 | .229 |
| 15 | 83 | 50 | 0 | 98 | 70 | 90 | 74 | 0 | 2 | 17 | .221 |
| 16 | 84 | 50 | 0 | 101 | 71 | 92 | 73 | 0 | 2 | 17 | .229 |
| 17 | 76 | 47 | 0 | 91 | 67 | 85 | 72 | 3 | 0 | 12 | .132 |
| 18 | 82 | 53 | 0 | 98 | 69 | 89 | 70 | 0 | 3 | 18 | .207 |
| 19 | 74 | 51 | 0 | 91 | 66 | 83 | 70 | 2 | 0 | 13 | .248 |
| 20 | 79 | 47 | 0 | 95 | 66 | 86 | 68 | 2 | 0 | 13 | .304 |
| 21 | 81 | 46 | 0 | 97 | 65 | 89 | 69 | 1 | 0 | 14 | .259 |
| 22 | 74 | 55 | .29 | 79 | 68 | 74 | 70 | 0 | 0 | 15 | .087 |
| 23 | 66 | 53 | .63 | 71 | 63 | 70 | 65 | 5 | 0 | 10 | .035 |
| 24 | 71 | 45 | .03 | 74 | 58 | 70 | 62 | 7 | 0 | 8 | .124 |
| 25 | 78 | 48 | 0 | 84 | 58 | 75 | 59 | 2 | 0 | 13 | .211 |
| 26 | 84 | 47 | 0 | 87 | 60 | 77 | 61 | 0 | 1 | 16 | .220 |
| 27 | 85 | 46 | 0 | 91 | 58 | 82 | 62 | 0 | 1 | 16 | .239 |
| 28 | 83 | 53 | 0 | 93 | 60 | 83 | 64 | 0 | 3 | 18 | .204 |
| 29 | 84 | 52 | 0 | 95 | 64 | 87 | 67 | 0 | 3 | 18 | .260 |
| 30 | 82 | 50 | 0 | 94 | 66 | 86 | 68 | 0 | 1 | 16 | .239 |
| 31 | 85 | 55 | 0 | 97 | 66 | 88 | 68 | 0 | 5 | 20 | .254 |
| Average/Total | 82.2 | 50.8 | 0.96 | 94.1 | 66.1 | 86.0 | 68.7 | 27 | 81 | 519 | 7.314 |
| Departure | 1.1 | -0.5 | 0.09 |   |   |   |   |   |   |   |   |