Darhan Muminggan United Banner is made up of 7 towns, 2 townships, and 3 sums.

Darhan Banner has a monsoon-influenced, continental semi-arid climate (Köppen BSk), barely avoiding arid designation, with very cold and dry winters, hot, somewhat humid summers, and strong winds, especially in spring.

The monthly 24-hour average temperature ranges from −14.2 °C (6.4 °F) in January to 21.7 °C (71.1 °F) in July, with the annual mean at 4.70 °C (40.5 °F).

The annual precipitation is 252 mm (9.9 in), with more than half of it falling in July and August alone.

There are 3,164 hours of bright sunshine annually, with each of the winter months having over 70% of the possible total, and this percentage falling to 58 in July.