Parts of the Darwin-Daly have received their heaviest May rain in over a decade. Darwin River Dam recorded 50.2mm in the 24 hours to 9am on Friday, the heaviest May rain since 1995. Karama had 52mm, its heaviest daily May total since 1987 and making this the wettest May in nine years. Some of the heavier falls exceeded 100mm. Batchelor received 101.4mm, making it the highest total since March last year and bringing its May total to 150mm. This has been its highest May total so far since at least 1998. Rainfall is typically scarce at this time of year as this part of the country moves into the dry season. For example in 2011, the Darwin River Dam gauge didn't record a single drop in May, a contrast to last night's deluge. A broad low pressure trough provided an influx of tropical moisture, which resulted in the brief and heavy rainfall across the region. Looking further ahead for the Darwin-Daly, rains are likely to ease and be confined to coastal areas. A strong high pressure ridge will extend over the region, bringing clear skies and dry conditions for the next few days.