Having lived all along the Front Range and now in Cheyenne for the last 40 years - The last 5 years have been getting worse every year for severe weather. We have been tracking storms and torados for the last 2 weeks. As far as the south part of Denver - you are in a good spot. Get up around Greeley and Cheyenne (where I am), the weather is pretty rough all the time. It has something to do with the way the mountain ranges direct the wind / moisture.