This is a conceptual knitting pattern. You can use any weight yarns and any size needles. You’ll need about 15 different colours, depending on the temperature range in your climate. You will be knitting one stripe a day based of the temperature high in your region. Each colour represents an increment of 5 degrees (celsius), but you can choose to have it represent a larger increment and use less colours. At the end of the year, you will have a scarf that will show you a chart of your area’s temperatures for a whole year.