hitterish
adj.— «“How many years did you hear that a lefty could never win at Fenway? It’s not true.” In July and August, when the air is conducive to what the late Ned Martin referred to as hitterish weather, the wind blows from the Southwest, toward The Wall.» —“Wild weather, no wild games” by Alan Greenwood Nashua Telegraph (New Hampshire) Apr. 14, 2007. (source: Double-Tongued Dictionary)
Further reading
Enthusiastic book recommendations! Martha’s savoring the biography of Alexander von Humboldt, the 19th-century explorer, polymath, and naturalist who revolutionized our understanding of nature and predicted the effects of human activity on...
The words tough, through, and dough all end in O-U-G-H. So why don’t they rhyme? A lively new book addresses the many quirks of English by explaining the history of words and phrases. And: have you ever been in a situation where a group makes...
Cites for “hitterish” back to 1927 here, though this is the first I’ve seen the word applied to weather.