Daily Observations at Hyslop Exp. Stn., Corvallis
January 2000
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 |
| 1 | 43 | 34 | .31 | 40 | 36 | 40 | 38 | 26 | 0 | 0 |
| 2 | 46 | 38 | .71 | 44 | 40 | 42 | 40 | 23 | 0 | 0 |
| 3 | 43 | 39 | .19 | 43 | 40 | 41 | 40 | 24 | 0 | 0 |
| 4 | 49 | 41 | .60 | 44 | 41 | 43 | 41 | 20 | 0 | 0 |
| 5 | 50 | 33 | .03 | 46 | 39 | 46 | 41 | 23 | 0 | 0 |
| 6 | 50 | 28 | 0 | 49 | 37 | 46 | 40 | 26 | 0 | 0 |
| 7 | 44 | 31 | .13 | 42 | 37 | 41 | 39 | 27 | 0 | 0 |
| 8 | 51 | 43 | .06 | 48 | 45 | 47 | 41 | 18 | 0 | 0 |
| 9 | 50 | 42 | .22 | 48 | 44 | 46 | 44 | 19 | 0 | 0 |
| 10 | 49 | 38 | .47 | 46 | 42 | 45 | 43 | 21 | 0 | 0 |
| 11 | 42 | 35 | .67 | 42 | 41 | 42 | 42 | 26 | 0 | 0 |
| 12 | 42 | 33 | .54 | 41 | 37 | 43 | 39 | 27 | 0 | 0 |
| 13 | 40 | 32 | 1.01 | 39 | 36 | 68 | 36 | 29 | 0 | 0 |
| 14 | 43 | 36 | .53 | 40 | 39 | 40 | 39 | 25 | 0 | 0 |
| 15 | 49 | 27 | .12 | 47 | 36 | 44 | 37 | 27 | 0 | 0 |
| 16 | 45 | 32 | .46 | 37 | 35 | 38 | 36 | 26 | 0 | 0 |
| 17 | 48 | 27 | .17 | 43 | 36 | 41 | 38 | 27 | 0 | 0 |
| 18 | 47 | 28 | 0 | 46 | 35 | 43 | 36 | 27 | 0 | 0 |
| 19 | 42 | 29 | .01 | 41 | 35 | 40 | 36 | 29 | 0 | 0 |
| 20 | 42 | 33 | .29 | 40 | 35 | 39 | 36 | 27 | 0 | 0 |
| 21 | 46 | 37 | .21 | 43 | 39 | 41 | 39 | 23 | 0 | 0 |
| 22 | 50 | 36 | .02 | 47 | 40 | 45 | 41 | 22 | 0 | 0 |
| 23 | 51 | 33 | T | 48 | 38 | 46 | 41 | 23 | 0 | 0 |
| 24 | 41 | 33 | .09 | 43 | 37 | 41 | 39 | 28 | 0 | 0 |
| 25 | 40 | 35 | 1.05 | 40 | 39 | 40 | 40 | 27 | 0 | 0 |
| 26 | 50 | 33 | .03 | 49 | 38 | 45 | 40 | 23 | 0 | 0 |
| 27 | 49 | 32 | .03 | 48 | 38 | 44 | 39 | 24 | 0 | 0 |
| 28 | 46 | 25 | 0 | 47 | 36 | 44 | 37 | 29 | 0 | 0 |
| 29 | 43 | 23 | 0 | 50 | 36 | 43 | 38 | 32 | 0 | 0 |
| 30 | 46 | 28 | .01 | 43 | 35 | 40 | 36 | 28 | 0 | 0 |
| 31 | 43 | 33 | .07 | 40 | 35 | 38 | 36 | 27 | 0 | 0 |
| Average/Total | 45.8 | 33.1 | 8.03 | 44.0 | 38.0 | 43.3 | 39.0 | 783 | 0 | 0 |
| Departure | 0.3 | 0.1 | 1.21 |   |   |   |   |   |   |   |