Daily Observations at Hyslop Exp. Stn., Corvallis
May 2007
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 | 64 | 43 | .03 | 0 | 73 | 49 | 67 | 52 | 11 | 0 | 4 | .251 |
| 2 | 60 | 46 | .42 | 0 | 64 | 53 | 62 | 55 | 12 | 0 | 3 | .089 |
| 3 | 54 | 40 | .38 | 0 | 62 | 49 | 59 | 51 | 18 | 0 | 0 | .138 |
| 4 | 57 | 40 | .35 | 0 | 70 | 48 | 62 | 49 | 16 | 0 | 0 | .012 |
| 5 | 56 | 34 | .07 | 0 | 70 | 46 | 63 | 50 | 20 | 0 | 0 | .188 |
| 6 | 58 | 37 | trace | 0 | 71 | 50 | 64 | 49 | 17 | 0 | 0 | .092 |
| 7 | 70 | 47 | 0 | 0 | 78 | 54 | 68 | 55 | 6 | 0 | 9 | .112 |
| 8 | 78 | 49 | 0 | 0 | 78 | 54 | 72 | 54 | 1 | 0 | 14 | .254 |
| 9 | 77 | 40 | 0 | 0 | 81 | 51 | 74 | 56 | 6 | 0 | 9 | .303 |
| 10 | 66 | 35 | 0 | 0 | 75 | 50 | 70 | 55 | 14 | 0 | 1 | .197 |
| 11 | 69 | 39 | 0 | 0 | 79 | 49 | 72 | 53 | 11 | 0 | 4 | .202 |
| 12 | 68 | 43 | trace | 0 | 74 | 52 | 69 | 54 | 9 | 0 | 6 | .192 |
| 13 | 57 | 44 | 0 | 0 | 63 | 53 | 60 | 54 | 14 | 0 | 1 | .091 |
| 14 | 60 | 39 | 0 | 0 | 74 | 48 | 68 | 52 | 15 | 0 | 0 | .172 |
| 15 | 74 | 42 | 0 | 0 | 82 | 48 | 73 | 50 | 7 | 0 | 8 | .263 |
| 16 | 75 | 38 | 0 | 0 | 88 | 53 | 78 | 56 | 8 | 0 | 7 | .149 |
| 17 | 70 | 43 | 0 | 0 | 86 | 54 | 78 | 56 | 8 | 0 | 7 | .363 |
| 18 | 73 | 41 | 0 | 0 | 91 | 56 | 82 | 58 | 8 | 0 | 7 | .199 |
| 19 | 71 | 50 | .13 | 0 | 85 | 58 | 77 | 59 | 4 | 0 | 11 | .223 |
| 20 | 65 | 47 | .05 | 0 | 77 | 57 | 73 | 59 | 9 | 0 | 6 | .096 |
| 21 | 56 | 44 | .12 | 0 | 63 | 51 | 62 | 55 | 15 | 0 | 0 | .212 |
| 22 | 62 | 34 | .01 | 0 | 67 | 47 | 62 | 52 | 17 | 0 | 0 | .067 |
| 23 | 69 | 39 | 0 | 0 | 76 | 49 | 69 | 49 | 11 | 0 | 4 | .171 |
| 24 | 75 | 46 | .05 | 0 | 89 | 53 | 78 | 54 | 4 | 0 | 11 | .073 |
| 25 | 76 | 46 | 0 | 0 | 91 | 59 | 81 | 59 | 4 | 0 | 11 | .210 |
| 26 | 77 | 47 | 0 | 0 | 89 | 59 | 80 | 62 | 3 | 0 | 12 | .176 |
| 27 | 73 | 52 | 0 | 0 | 87 | 60 | 79 | 63 | 2 | 0 | 13 | .230 |
| 28 | 60 | 34 | 0 | 0 | 72 | 50 | 69 | 55 | 18 | 0 | 0 | .110 |
| 29 | 66 | 44 | 0 | 0 | 84 | 51 | 77 | 53 | 10 | 0 | 5 | .245 |
| 30 | 85 | 44 | 0 | 0 | 96 | 58 | 85 | 59 | 0 | 0 | 15 | .274 |
| 31 | 86 | 45 | 0 | 0 | 99 | 62 | 88 | 64 | 0 | 1 | 16 | .333 |
| Average/Total | 68.0 | 42.3 | 1.61 | 0.00 | 78.5 | 52.6 | 71.6 | 54.9 | 298 | 1 | 184 | 5.687 |
| Departure | 1.9 | -0.8 | -0.34 |   |   |   |   |   |   |   |   |   |