The featured map presents an analysis of the average number of hours per year that the wind chill reading is below zero. The total number of hours is presented in units of 24 hour day periods for easier comprehension. While there are some local poor data effects, the north to south pattern is clear with the nation's ice box around 50 days and the south under 1 day. The gradient over Iowa is fairly strong with northern Iowa near 30 days and southern Iowa around 10. The past week has seen the coldest wind chills over north central Iowa, which makes the preferred region in the state for the most frequent sub zero wind chills.

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Good = 67
Bad = 13

Tags:   windchill