in Thoreau’s Journal:

Some of the phenomena of an average March are increasing warmth, melting the snow and ice, and gradually the frost in the ground; cold and blustering weather, with high, commonly northwest winds for many days together; misty and other rains taking out frost, whitenings of snow, and winter often back again, both its cold and snow; bare ground and open waters, and more or less of a freshet; some calm and pleasant days reminding us of summer, with a blue haze or a thicker mist over the woods at last, in which perchance, we take off our coats a while, and sit without a fire; the ways getting settled, and some greenness appearing on south banks; April-like rains after the frost is chiefly out; ploughing and planting of peas, etc., just beginning, and the old leaves getting dry in the woods.