| TN10P cold nights | TN90P hot nights | TX10P cold days | TX90P hot days | |||||
| Changes | 71 - 00 | 81 - 10 | 71 - 00 | 81 - 10 | 71 - 00 | 81 - 10 | 71 - 00 | 81 - 10 |
| Positives | 43 | 9 | 25 | 18 | 30 | 8 | 31 | 19 |
| Negatives | 24 | 18 | 42 | 9 | 34 | 19 | 34 | 8 |
| Total | 67 | 27 | 67 | 27 | 64 | 27 | 65 | 27 |
| Average | 4.40 | 2.13 | −5.30 | 3.82 | −3.02 | −2.98 | −0.75 | 7.01 |
| Std. Dev. | 14.39 | 12.67 | 15.66 | 7.71 | 14.68 | 9.50 | 20.60 | 12.59 |
| Max | 40.00 | 35.77 | 42.00 | 15.36 | 38.00 | 22.09 | 45.00 | 22.46 |
| Min | −45.00 | −7.40 | −38.00 | −9.07 | −38.00 | −24.60 | −39.00 | −12.17 |
| % Positives | 64.18 | 33.33 | 37.31 | 66.67 | 46.88 | 29.63 | 47.69 | 70.37 |
| % Negatives | 35.82 | 66.67 | 62.69 | 33.33 | 53.13 | 70.37 | 52.31 | 29.63 |