Let's not forget the significance of colloquial expressions in English-speaking countries like Canada for example. "Perfect wilting weather" is not necessarily a formal inference to agricultural conditions only. It is used to refer to outcomes for people too. "The crowd wilted in the heat." Meaning that the crowd was weakened and tired due to extremely hot, humid weather conditions. Yes, it's the same conditions that "wilt" plants, but it is sometimes used colloquially to describe the way that people responded to climatic conditions. That's the wonder of the endless collection of English colloquials and idioms. We play with words!

Hello! The term "perfect wilting weather" is not a commonly used phrase and is not found in standard dictionaries. However, based on the combination of the words "perfect" and "wilting," we can infer its meaning. "Wilting" typically refers to the drooping or withering of plants due to a lack of water or excessive heat. It occurs when the plant's cells lose water, causing them to lose turgidity and become limp. On the other hand, "perfect" implies an ideal or optimal condition. Therefore, "perfect wilting weather" could be interpreted as the ideal conditions that lead to the wilting of plants. This might refer to a combination of factors such as high temperatures, low humidity, and a lack of rainfall that can quickly dehydrate plants and cause them to wilt. It suggests that the environmental conditions are particularly conducive to plant wilting, which may not be desirable for gardening or agriculture.

"Perfect wilting weather" is not a commonly used or recognized term in meteorology or horticulture. It appears to be a phrase that might be specific to a certain context or region. However, based on the individual words, we can infer a general meaning. "Wilting" typically refers to the drooping or limp appearance of plants due to a lack of water or extreme heat. It occurs when plants lose more water through transpiration than they can absorb from the soil. This can happen during hot and dry conditions, especially if the plants are not adequately watered. Therefore, "perfect wilting weather" could imply weather conditions that are ideal for causing wilting in plants. It might refer to a combination of factors such as high temperatures, low humidity, and insufficient moisture in the soil, all of which contribute to the wilting of plants. However, without a specific context, it is challenging to provide a precise definition.

Thank you, it appeared in my Objective Proficiency book by Cambridge