| TYS | Temp | Precip | Precip | HDD | CDD | ||||||||||||
| Daily | Daily | Daily | Daily | Daily | Daily | Month | Season | Year | Daily | Month | Season | Year | Month | Season | Month | Season | |
| DATE | High | Low | Average | HDD | CDD | Total | Total | Total | Total | Depart. | Depart. | Depart. | Depart. | Total | Total | Total | Total |
| 01/01/03 | 60 | 47 | 54 | 11 | 0 | 0.36 | 0.36 | 5.71 | 0.36 | 0.21 | 0.21 | 1.07 | 0.21 | 11 | 1443 | 0 | 0 |
| 01/02/03 | 53 | 45 | 49 | 16 | 0 | 0.26 | 0.62 | 5.97 | 0.62 | 0.11 | 0.32 | 1.18 | 0.32 | 27 | 1459 | 0 | 0 |
| 01/03/03 | 46 | 31 | 39 | 26 | 0 | 0.06 | 0.68 | 6.03 | 0.68 | -0.09 | 0.23 | 1.09 | 0.23 | 53 | 1485 | 0 | 0 |
| 01/04/03 | 41 | 30 | 36 | 29 | 0 | T | 0.68 | 6.03 | 0.68 | -0.15 | 0.08 | 0.94 | 0.08 | 82 | 1514 | 0 | 0 |
| 01/05/03 | 50 | 32 | 41 | 24 | 0 | 0.05 | 0.73 | 6.08 | 0.73 | -0.10 | -0.02 | 0.84 | -0.02 | 106 | 1538 | 0 | 0 |
| 01/06/03 | 43 | 32 | 38 | 27 | 0 | T | 0.73 | 6.08 | 0.73 | -0.15 | -0.17 | 0.69 | -0.17 | 133 | 1565 | 0 | 0 |
| 01/07/03 | 41 | 25 | 33 | 32 | 0 | 0 | 0.73 | 6.08 | 0.73 | -0.15 | -0.32 | 0.54 | -0.32 | 165 | 1597 | 0 | 0 |
| 01/08/03 | 52 | 32 | 42 | 23 | 0 | 0 | 0.73 | 6.08 | 0.73 | -0.15 | -0.47 | 0.39 | -0.47 | 188 | 1620 | 0 | 0 |
| 01/09/03 | 60 | 43 | 52 | 13 | 0 | T | 0.73 | 6.08 | 0.73 | -0.15 | -0.62 | 0.24 | -0.62 | 201 | 1633 | 0 | 0 |
| 01/10/03 | 52 | 29 | 41 | 24 | 0 | 0 | 0.73 | 6.08 | 0.73 | -0.15 | -0.77 | 0.09 | -0.77 | 225 | 1657 | 0 | 0 |
| 01/11/03 | 36 | 21 | 29 | 36 | 0 | 0 | 0.73 | 6.08 | 0.73 | -0.15 | -0.92 | -0.06 | -0.92 | 261 | 1693 | 0 | 0 |
| 01/12/03 | 32 | 18 | 25 | 40 | 0 | 0 | 0.73 | 6.08 | 0.73 | -0.15 | -1.07 | -0.21 | -1.07 | 301 | 1733 | 0 | 0 |
| 01/13/03 | 42 | 19 | 31 | 34 | 0 | 0 | 0.73 | 6.08 | 0.73 | -0.15 | -1.22 | -0.36 | -1.22 | 335 | 1767 | 0 | 0 |
| 01/14/03 | 49 | 25 | 37 | 28 | 0 | 0 | 0.73 | 6.08 | 0.73 | -0.15 | -1.37 | -0.51 | -1.37 | 363 | 1795 | 0 | 0 |
| 01/15/03 | 36 | 20 | 28 | 37 | 0 | 0 | 0.73 | 6.08 | 0.73 | -0.15 | -1.52 | -0.66 | -1.52 | 400 | 1832 | 0 | 0 |
| 01/16/03 | 33 | 25 | 29 | 36 | 0 | 0.27 | 1.00 | 6.35 | 1.00 | 0.12 | -1.40 | -0.54 | -1.40 | 436 | 1868 | 0 | 0 |
| 01/17/03 | 29 | 16 | 23 | 42 | 0 | T | 1.00 | 6.35 | 1.00 | -0.15 | -1.55 | -0.69 | -1.55 | 478 | 1910 | 0 | 0 |
| 01/18/03 | 28 | 5 | 17 | 48 | 0 | T | 1.00 | 6.35 | 1.00 | -0.15 | -1.70 | -0.84 | -1.70 | 526 | 1958 | 0 | 0 |
| 01/19/03 | 35 | 20 | 28 | 37 | 0 | T | 1.00 | 6.35 | 1.00 | -0.15 | -1.85 | -0.99 | -1.85 | 563 | 1995 | 0 | 0 |
| 01/20/03 | 56 | 35 | 46 | 19 | 0 | 0 | 1.00 | 6.35 | 1.00 | -0.15 | -2.00 | -1.14 | -2.00 | 582 | 2014 | 0 | 0 |
| 01/21/03 | 50 | 32 | 41 | 24 | 0 | 0.56 | 1.56 | 6.91 | 1.56 | 0.41 | -1.59 | -0.73 | -1.59 | 606 | 2038 | 0 | 0 |
| 01/22/03 | 41 | 22 | 32 | 33 | 0 | 0.03 | 1.59 | 6.94 | 1.59 | -0.12 | -1.71 | -0.85 | -1.71 | 639 | 2071 | 0 | 0 |
| 01/23/03 | 22 | 9 | 16 | 49 | 0 | 0.18 | 1.77 | 7.12 | 1.77 | 0.03 | -1.68 | -0.82 | -1.68 | 688 | 2120 | 0 | 0 |
| 01/24/03 | 24 | 4 | 14 | 51 | 0 | 0 | 1.77 | 7.12 | 1.77 | -0.14 | -1.82 | -0.96 | -1.82 | 739 | 2171 | 0 | 0 |
| 01/25/03 | 34 | 19 | 27 | 38 | 0 | 0 | 1.77 | 7.12 | 1.77 | -0.14 | -1.96 | -1.10 | -1.96 | 777 | 2209 | 0 | 0 |
| 01/26/03 | 38 | 21 | 30 | 35 | 0 | T | 1.77 | 7.12 | 1.77 | -0.14 | -2.10 | -1.24 | -2.10 | 812 | 2244 | 0 | 0 |
| 01/27/03 | 31 | 12 | 22 | 43 | 0 | T | 1.77 | 7.12 | 1.77 | -0.14 | -2.24 | -1.38 | -2.24 | 855 | 2287 | 0 | 0 |
| 01/28/03 | 46 | 24 | 35 | 30 | 0 | 0.05 | 1.82 | 7.17 | 1.82 | -0.09 | -2.33 | -1.47 | -2.33 | 885 | 2317 | 0 | 0 |
| 01/29/03 | 50 | 38 | 44 | 21 | 0 | 1.32 | 3.14 | 8.49 | 3.14 | 1.18 | -1.15 | -0.29 | -1.15 | 906 | 2338 | 0 | 0 |
| 01/30/03 | 42 | 36 | 39 | 26 | 0 | 0.01 | 3.15 | 8.50 | 3.15 | -0.13 | -1.28 | -0.42 | -1.28 | 932 | 2364 | 0 | 0 |
| 01/31/03 | 44 | 35 | 40 | 25 | 0 | 0.02 | 3.17 | 8.52 | 3.17 | -0.12 | -1.40 | -0.54 | -1.40 | 957 | 2389 | 0 | 0 |
| Average | 41.8 | 25.9 | 33.9 | ||||||||||||||
| Depart | -4.5 | -3 | -3.7 | 116 | -242 | 0 | 0 |