I don’t work in agriculture, but I understand that you can’t grow one plant perfectly in every single season.
Oranges are harvested once a year, and if there is too much frost or ice during the winter season, it could destroy that year’s crop or diminish it considerably.
The cannabis plant is no different, especially if you’re growing in “hoop houses” or partially-climate-controlled green houses that are built outdoors. Cannabis benefits from a strictly controlled light cycle during its flowering stage, which is why indoor growing operations have the lights set on automatic timers that give them the same exact amount of light each day until the settings are adjusted during the growing cycle. In a hoop house you have natural sunlight and a few grow lights above for supplemental light. There are dehumidifiers to keep the humidity from getting out of control, but the temperatures are contingent upon the season. During the summer the plants get really hot during the day and it stresses them out. And if the grow teams inadvertently harvest the plants too early, it could also have a negative effect on the quality of the batch compared to ones in the past. You could buy a strain like Queso Perro one month and then get a version in diminished quality a month or two months later. Thankfully as the temperatures drop in my state, the greenhouse-grown cannabis flower products tend to improve across the board. The quality of marijuana grown increases so much that by February we get some killer batches of weed buds that rival some of the amazing marijuana out west.