October can be Maryland's prettiest month. But anything can happen. Record highs linger in the 90s. In 1941, we hit 97 degrees Oct. 5. Lows can reach the 20s, with a 25-degree record Oct. 24, 1969. It can be sweltering, or it can snow. The earliest trace fell Oct. 9, 1903, and most recently Oct. 22, 2003. The deepest measurable snowfall was 2.5 inches Oct. 30, 1925. The oldest daily record is a 2.22-inch rainfall on Oct. 25, 1872.