| Table 2. 1999 Temperature and Precipitation Summary | |||||||||||
| May | June | July | August | September | |||||||
| Temperature | Average | Departure | Average | Departure | Average | Departure | Average | Departure | Average | Departure | |
| Location | Precipitation | Total | Departure | Total | Departure | Total | Departure | Total | Departure | Total | Departure |
| Arlington | Temperature | 59.9 | 2.0 | 67.8 | 1.0 | 74.8 | 3.5 | 66.7 | -2.2 | 59.5 | -1.4 |
| Precipitation | 3.9 | 0.8 | 5.3 | 1.5 | 3.4 | 0.0 | 2.5 | -1.4 | 1.0 | -3.3 | |
| Ashland | Temperature | 54.2 | 2.6 | 63.8 | 2.4 | 71.0 | 3.2 | 66.4 | 0.8 | 57.8 | 0.7 |
| Precipitation | 2.9 | -0.9 | 5.2 | 1.7 | 8.8 | 4.9 | 5.3 | 1.4 | 3.5 | -0.3 | |
| Chippewa Falls | Temperature | 60.2 | 2.9 | 67.1 | 0.7 | 74.8 | 3.3 | 68.3 | -0.3 | 58.9 | -0.1 |
| (Eau Claire) | Precipitation | 6.0 | 2.2 | 3.9 | -0.3 | 4.3 | 0.4 | 3.6 | -0.9 | 0.7 | -3.2 |
| Fond du Lac | Temperature | 60.3 | 2.8 | 68.4 | 1.4 | 74.9 | 2.9 | 67.9 | -1.6 | 61.2 | -0.1 |
| Precipitation | 5.0 | 1.9 | 2.9 | -0.6 | 8.1 | 4.9 | 1.9 | -2.6 | 2.2 | -1.6 | |
| Galesville | Temperature | 62.3 | 3.0 | 69.5 | 1.2 | 77.7 | 4.8 | 69.9 | -0.3 | 61.5 | 0.1 |
| (Tremp. Dam #6) | Precipitation | 4.0 | 0.2 | 2.4 | -1.6 | 9.2 | 5.1 | 3.5 | -0.6 | 2.8 | -1.5 |
| Hancock* | Temperature | 59.4 | 1.7 | 65.9 | -0.7 | 73.0 | 2.1 | 66.1 | -2.3 | 57.8 | -2.3 |
| Precipitation | 3.3 | 0.0 | 3.7 | 0.1 | 10.7 | 7.1 | 4.5 | 0.6 | 1.3 | -2.9 | |
| Janesville | Temperature | 61.0 | 2.8 | 69.3 | 0.6 | 76.4 | 3.7 | 68.7 | -1.2 | 61.1 | -9.0 |
| (Beloit) | Precipitation | 3.2 | 0.1 | 5.2 | 1.4 | 5.6 | 1.7 | 3.7 | -0.3 | 4.2 | 0.3 |
| Lancaster | Temperature | 59.4 | 1.1 | 67.6 | -0.1 | 74.7 | 2.7 | 67.6 | -2.1 | 59.6 | -1.9 |
| Precipitation | 6.1 | 2.5 | 4.2 | 0.2 | 5.4 | 1.4 | 2.5 | -1.9 | 1.7 | -2.1 | |
| Marshfield | Temperature | 59.1 | 3.1 | 66.5 | 1.9 | 72.7 | 3.4 | 66.6 | -0.2 | 57.7 | -0.6 |
| Precipitation | 3.5 | -0.6 | 1.8 | -2.2 | 8.3 | 4.3 | 3.7 | -0.4 | 1.4 | -3.1 | |
| Seymour | Temperature | 58.1 | 2.6 | 65.4 | 0.9 | 72.2 | 2.5 | 65.4 | -1.7 | 58.5 | -0.5 |
| (Green Bay) | Precipitation | 3.8 | 1.0 | 4.0 | 0.6 | 5.7 | 2.6 | 1.3 | -2.2 | 1.2 | -2.2 |
| Spooner* | Temperature | 60.0 | 4.1 | 66.0 | 1.6 | 73.2 | 3.7 | 67.9 | 1.3 | 57.7 | 0.1 |
| 4.5 | 1.3 | 4.4 | 0.5 | 7.1 | 3.3 | 5.4 | 1.1 | 3.7 | -0.1 | ||
| Valders | Temperature | 57.2 | 3.1 | 65.8 | 2.0 | 74.3 | 4.5 | 68.5 | 0.2 | 61.3 | 0.7 |
| (Manitowoc) | Precipitation | 5.0 | 2.2 | 5.5 | 2.4 | 4.1 | 1.1 | 2.6 | -0.8 | 2.4 | -0.9 |
| White Lake | Temperature | 56.2 | 3.0 | 63.1 | 1.1 | 69.8 | 2.7 | 63.1 | -1.1 | 53.9 | 53.9 |
| (Antigo) | Precipitation | 4.9 | 1.6 | 4.0 | 0.1 | 10.1 | 6.4 | 3.4 | -0.8 | 1.7 | 1.7 |
| *Irrigation applied at Hancock and Spooner - Irrigated Sand Trials. | |||||||||||