Commonly known as age spots or liver spots, the correct term for a single lesion is benign solar lentigo (plural lentigines). Lentigines are due to accumulated pigment cells (melanocytic hyperplasia) and don't disappear in the winter (though they may fade). It is important to distinguish the benign solar lentigo from an early malignant melanoma the lentigo maligna. If the freckle has arisen recently, is made up of more than one colour or has irregular borders, see your dermatologist for advice.
