Greater Upper Marlboro Climate: Weather by Month and Best Time to Visit

Best months for Greater Upper Marlboro: September, October, May, June.

Best time to visit

Year at a glance

Jan 5.2 Feb 5.6 Mar 6.2 Apr 7.2 May 7.6 Jun 7.5 Jul 6.8 Aug 7.4 Sep 7.7 Oct 7.7 Nov 6.8 Dec 5.7

Weather by month

Month	Avg high	Avg low	Rainfall	Rainy days	Humidity	Sunshine	Score
January	7°C	-1°C	78 mm	9	–	–	5.2
February	8°C	0°C	74 mm	8	–	–	5.6
March	13°C	4°C	101 mm	10	–	–	6.2
April	19°C	9°C	86 mm	10	–	–	7.2
May	24°C	15°C	93 mm	10	–	–	7.6
June	28°C	20°C	94 mm	11	–	–	7.5
July	31°C	23°C	109 mm	13	–	–	6.8
August	29°C	22°C	101 mm	11	–	–	7.4
September	26°C	18°C	108 mm	9	–	–	7.7
October	20°C	12°C	90 mm	8	–	–	7.7
November	14°C	6°C	74 mm	8	–	–	6.8
December	9°C	2°C	88 mm	9	–	–	5.7