Daily Observations at Hyslop Exp. Stn., Corvallis
April 2005
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 | 42 | .07 | 0 | 67 | 46 | 61 | 46 | 12 | 0 | 3 | .135 |
| 2 | 58 | 37 | .07 | 0 | 62 | 47 | 58 | 48 | 17 | 0 | 0 | .089 |
| 3 | 58 | 39 | trace | 0 | 63 | 47 | 58 | 47 | 16 | 0 | 0 | .120 |
| 4 | 51 | 36 | .10 | 0 | 54 | 45 | 52 | 48 | 21 | 0 | 0 | .045 |
| 5 | 57 | 38 | .01 | 0 | 67 | 44 | 59 | 46 | 17 | 0 | 0 | .090 |
| 6 | 63 | 41 | trace | 0 | 67 | 48 | 59 | 47 | 13 | 0 | 2 | .098 |
| 7 | 64 | 43 | .02 | 0 | 66 | 49 | 60 | 49 | 11 | 0 | 4 | .030 |
| 8 | 55 | 36 | .37 | 0 | 60 | 48 | 57 | 50 | 19 | 0 | 0 | .009 |
| 9 | 55 | 34 | .06 | 0 | 63 | 45 | 57 | 48 | 20 | 0 | 0 | .036 |
| 10 | 57 | 32 | 0 | 0 | 62 | 44 | 58 | 46 | 20 | 0 | 0 | .094 |
| 11 | 57 | 33 | .34 | 0 | 61 | 44 | 56 | 46 | 20 | 0 | 0 | .080 |
| 12 | 56 | 34 | .09 | 0 | 65 | 46 | 59 | 49 | 20 | 0 | 0 | .165 |
| 13 | 54 | 34 | .18 | 0 | 63 | 45 | 58 | 46 | 21 | 0 | 0 | .098 |
| 14 | 55 | 32 | .2 | 0 | 63 | 44 | 57 | 46 | 21 | 0 | 0 | .068 |
| 15 | 56 | 36 | trace | 0 | 66 | 43 | 61 | 43 | 19 | 0 | 0 | .138 |
| 16 | 57 | 42 | .23 | 0 | 60 | 48 | 57 | 46 | 15 | 0 | 0 | .005 |
| 17 | 58 | 37 | .22 | 0 | 61 | 49 | 58 | 50 | 17 | 0 | 0 | .047 |
| 18 | 54 | 37 | .28 | 0 | 60 | 48 | 56 | 46 | 19 | 0 | 0 | .160 |
| 19 | 58 | 31 | .06 | 0 | 68 | 45 | 61 | 46 | 20 | 0 | 0 | .100 |
| 20 | 65 | 34 | 0 | 0 | 74 | 44 | 65 | 45 | 15 | 0 | 0 | .133 |
| 21 | 68 | 38 | 0 | 0 | 76 | 47 | 68 | 48 | 12 | 0 | 3 | .164 |
| 22 | 68 | 42 | 0 | 0 | 75 | 51 | 68 | 51 | 10 | 0 | 5 | .165 |
| 23 | 74 | 51 | .10 | 0 | 77 | 53 | 69 | 54 | 2 | 0 | 13 | .178 |
| 24 | 58 | 41 | .40 | 0 | 62 | 52 | 59 | 55 | 15 | 0 | 0 | .007 |
| 25 | 65 | 47 | 0 | 0 | 74 | 52 | 68 | 52 | 9 | 0 | 6 | .127 |
| 26 | 66 | 43 | 0 | 0 | 74 | 54 | 68 | 54 | 10 | 0 | 5 | .153 |
| 27 | 71 | 43 | 0 | 0 | 76 | 54 | 68 | 54 | 8 | 0 | 7 | .110 |
| 28 | 77 | 51 | 0 | 0 | 83 | 54 | 74 | 54 | 1 | 0 | 14 | .180 |
| 29 | 66 | 49 | 0 | 0 | 77 | 58 | 71 | 60 | 7 | 0 | 8 | .168 |
| 30 | 60 | 49 | .01 | 0 | 64 | 57 | 61 | 56 | 10 | 0 | 5 | .043 |
| Average/Total | 60.8 | 39.4 | 2.81 | 0.00 | 67.0 | 48.4 | 61.4 | 49.2 | 437 | 0 | 75 | 3.035 |
| Departure | 1.3 | 0.2 | 0.25 |   |   |   |   |   |   |   |   |   |