As the snow is melting, you might be turning your mind toward warm-weather staples like baseball, barbecues and hiring season. Yes, hiring season. As a human resources professional, you have probably noticed that it is easier to fill open positions in May, June and July. Smart Recruiters conducted a survey of 100,000 employees at 700 companies and found that these three months come with the highest number of job applicants. There are a few reasons that explain why these months stand out. Many companies try to fill open positions by the start of summer, which often leads to a hiring increase.