Greater Upper Marlboro

What is the climate like in Greater Upper Marlboro?

The best time to visit Greater Upper Marlboro is typically October, the year's most comfortable month (6.6/10). Greater Upper Marlboro is warmest in July, when daily highs average 88°F (31°C), and coolest in January, when lows fall to about 32°F (0°C). The wettest month is typically July and the driest is November; the year sees roughly 49 in (1232 mm) of precipitation.

• Best time to visitOctober — the year's comfort peak (6.6/10)
• Warmest monthJuly — average high 88°F (31°C)
• Coolest monthJanuary — average low 32°F (0°C)
• Wettest monthJuly (6.7 in (170 mm))
• Driest monthNovember (2.6 in (66 mm))
• Annual precipitation49 in (1232 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromCamp Springs Andrews AFB, 10 km away (1949-2026)