In the south, we're the opposite. Training in the winter is 8,000 ops a day... training in summer is 5,000 - but you run into severe weather.
I know people in smaller facilities that train in towers / approach controls. They wouldn't check the CPC-IT until they hit a busy winter day. Then they suspended training until winter, so that they could see "Busy" for the radar positions. But, then again, pay wasn't an issue.