After a bitter winter, the season opens with a pretty warm March, which is unusual for the seasonal average. Even the month of April has recorded exceptionally warm temperatures, with peak temperatures equal to 35°. June proves to be one of the most rainy months of the year, in spite of the temperatures, which persist above the seasonal average and give the first signs that an early harvesting is very likely to happen.
The third decade of July is unusually cold despite the season. August has registered a variable weather, yet without rainsfalls. Bad period of draught. An early harvesting for Prosecco grapes is ,therefore, definitely confirmed, while the red grapes remain on the plants until the middle of October, benefiting the optimum night and day temperature range; to the advantage of nose-flavours.
| Axis x | Period | Day temperatures(°C) | Night temperatures (°C) | Rainfalls (mm) | Thermal Summation(°C) | Notes |
|---|---|---|---|---|---|---|
| 1 | 3rd ten days April | 20,6 | 9 | 52 | 145 | |
| 2 | 1st ten days May | 20,2 | 12,6 | 93 | 241 | |
| 3 | 2nd ten days May | 23 | 12,4 | 40 | 291 | |
| 4 | 3rd ten days May | 27,7 | 14,3 | 26 | 412 | |
| 5 | 1st ten days June | 28,6 | 15,9 | 11 | 535 | |
| 6 | 2nd ten days June | 28,6 | 18,4 | 55 | 701 | |
| 7 | 3rd ten days June | 28 | 16,6 | 0 | 800 | |
| 8 | 1st ten days July | 32,7 | 20,5 | 60 | 966 | |
| 9 | 2nd ten days July | 33,2 | 18,8 | 40 | 1149 | |
| 10 | 3rd ten days July | 32 | 18,5 | 72 | 1295 | |
| 11 | 1st ten days August | 29,2 | 16,8 | 16 | 1429 | |
| 12 | 2nd ten days August | 28,7 | 18 | 33 | 1602 | |
| 13 | 3rd ten days August | 31,6 | 19,8 | 13 | 1896 | |
| 14 | 1st ten days September | 24,1 | 19,8 | 12 | 1872 | |
| 15 | 2nd ten days September | 25,8 | 14,4 | 25 | 1972 | |
| 586 |
Thermal Summation: this value, expressed in Celsius degrees, shows the sum of differences between average dayly temperature and the so called “vine’s zero of vegetation”, which is equivalent to 12° for the vines. The values reported into the column “Thermal Summation”, show the thermal sum from the beginning of the year up to the relevant week of that same year; these values show the performance of seasonal temperatures.
WHAT: This graphic shows the data related to rainfalls, daytime and nighttime temperatures registered for every single vintage within the production area Montello and Asolo hills. (official statistics data provided by “C.e.c.a.t Institute”)
HOW: These data have been registered in the period between the third April’s week and the first September’s week, which is the most active and intense period of physiological activity for the vines, starting from the initial growth until the final maturation of the fruits right before harvesting, which usually takes place in the month of September and/or October, depending from the grape variety.
HORIZONTAL AXIS: shows the values registered during the 14 mentioned weeks of the year
VERTICAL AXIS: shows the values related to temperatures and rainfalls, as reported in the legend
