Green Bay is characterized by a humid continental climate given its location close to the Lake Michigan. This fact also accounts to extreme temperature conditions, with hot summers and cold winters. Further, there are four distinct seasons here listed as follows-

• Spring: February to April is Spring. Given the fact that winters and summers can get extreme here, Spring could be counted as the best time to visit Green Bay, besides Fall. February is the driest month here.
• Summer: May to August is summer. As per observation summers in Green Bay are humid, hot, and long! July is the warmest month in Green Bay with an average high temperature being around 27.3 degrees Celsius. Summer is hands down the best time to visit Green Bay. The weather is pleasantly warm, making it’s a good time to head out to the amusement parks in the city along with friends and family or even watching an afternoon game of the NFL.
• Autumn: August is the wettest month is Green Bay with an approximate precipitation fall of 3.77 inches. Thunderstorms too are occasional. September to October is Fall in Green Bay. This is the best time to visit Green Bay, after summer owing to beautiful foliage and clear roads. This is also when lots of farm markets are operational.
• Winter: November to January, the temperatures are at their lowest in Green Bay. Winters are snowy, accounting for the city’s extreme climatic conditions.