Will it snow when the sun shines on the winter solstice?

Snow in winter depends not only on the sun. The decisive factor of snow is temperature. When the weather is cold enough and the water in the atmosphere is saturated, it will snow. On the solstice of winter, if the temperature is not low enough or there is not enough moisture in the atmosphere, it will not snow. Snow is formed because the water mist in the cloud turns into snow because the temperature is too low before it condenses into water droplets.