Daily Observations at Hyslop Exp. Stn., Corvallis
December 2006
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 | 47 | 35 | .05 | 0 | 47 | 41 | 44 | 40 | 24 | 0 | 0 | 0 |
| 2 | 43 | 35 | 0 | 0 | 46 | 41 | 44 | 42 | 26 | 0 | 0 | 0 |
| 3 | 47 | 29 | 0 | 0 | 46 | 36 | 44 | 39 | 27 | 0 | 0 | 0 |
| 4 | 45 | 29 | 0 | 0 | 43 | 36 | 41 | 36 | 28 | 0 | 0 | 0 |
| 5 | 47 | 30 | 0 | 0 | 45 | 35 | 43 | 36 | 26 | 0 | 0 | 0 |
| 6 | 50 | 31 | .01 | 0 | 48 | 37 | 45 | 36 | 24 | 0 | 0 | 0 |
| 7 | 42 | 31 | .01 | 0 | 43 | 38 | 42 | 38 | 28 | 0 | 0 | 0 |
| 8 | 42 | 32 | 0 | 0 | 44 | 39 | 41 | 39 | 28 | 0 | 0 | 0 |
| 9 | 40 | 33 | .28 | 0 | 40 | 38 | 41 | 39 | 28 | 0 | 0 | 0 |
| 10 | 53 | 38 | .05 | 0 | 45 | 39 | 45 | 38 | 19 | 0 | 0 | 0 |
| 11 | 51 | 44 | .38 | 0 | 46 | 44 | 45 | 42 | 17 | 0 | 0 | 0 |
| 12 | 55 | 44 | .80 | 0 | 48 | 46 | 46 | 44 | 15 | 0 | 0 | 0 |
| 13 | 57 | 44 | 1.13 | 0 | 50 | 46 | 49 | 44 | 14 | 0 | 1 | 0 |
| 14 | 55 | 45 | 1.14 | 0 | 50 | 48 | 48 | 48 | 15 | 0 | 0 | 0 |
| 15 | 57 | 38 | 1.17 | 0 | 53 | 43 | 50 | 47 | 17 | 0 | 0 | 0 |
| 16 | 46 | 30 | .01 | 0 | 48 | 37 | 46 | 40 | 27 | 0 | 0 | 0 |
| 17 | 39 | 25 | 0 | 0 | 41 | 36 | 40 | 36 | 33 | 0 | 0 | 0 |
| 18 | 34 | 25 | 0 | 0 | 36 | 36 | 36 | 35 | 35 | 0 | 0 | 0 |
| 19 | 32 | 28 | 0 | 0 | 38 | 36 | 37 | 36 | 35 | 0 | 0 | 0 |
| 20 | 33 | 29 | 0 | 0 | 38 | 36 | 38 | 36 | 34 | 0 | 0 | 0 |
| 21 | 49 | 30 | .37 | 0 | 41 | 36 | 39 | 36 | 25 | 0 | 0 | 0 |
| 22 | 53 | 34 | .10 | 0 | 48 | 37 | 44 | 37 | 21 | 0 | 0 | 0 |
| 23 | 47 | 35 | .26 | 0 | 44 | 38 | 43 | 40 | 24 | 0 | 0 | 0 |
| 24 | 54 | 36 | .02 | 0 | 48 | 40 | 46 | 41 | 20 | 0 | 0 | 0 |
| 25 | 53 | 38 | .92 | 0 | 47 | 40 | 45 | 39 | 19 | 0 | 0 | 0 |
| 26 | 46 | 42 | .77 | 0 | 45 | 45 | 45 | 45 | 21 | 0 | 0 | 0 |
| 27 | 54 | 42 | .86 | 0 | 49 | 43 | 47 | 45 | 17 | 0 | 0 | 0 |
| 28 | 49 | 28 | 0 | 0 | 51 | 36 | 50 | 40 | 26 | 0 | 0 | 0 |
| 29 | 42 | 27 | 0 | 0 | 43 | 36 | 40 | 37 | 30 | 0 | 0 | 0 |
| 30 | 38 | 29 | 0 | 0 | 43 | 35 | 40 | 39 | 31 | 0 | 0 | 0 |
| 31 | 40 | 28 | .05 | 0 | 41 | 35 | 39 | 36 | 31 | 0 | 0 | 0 |
| Average/Total | 46.5 | 33.7 | 8.38 | 0.00 | 45.0 | 39.0 | 43.3 | 39.5 | 765 | 0 | 1 | 0.000 |
| Departure | 0.9 | -0.2 | 0.66 |   |   |   |   |   |   |   |   |   |