In common with most of southern England, the weather in Oxford is generally a bit dull and wet. Records have been kept in the town since 1815 and a month has never gone by without some rain, although Oxford is comparably one of the driest cities in the country. The wettest month statistically is October, and the driest March. Summers are usually mild to warm, although there have been occasional heat waves. Winters are mild, with temperatures seldom approaching freezing, the coldest month being January with an average temperature of around 38°F (4°C). Nights bring frost, and snow falls in late winter and early spring.