Rainfall Trend Analysis in Uma Oya Basin, Sri Lanka, and Future Water Scarcity Problems in Perspective of Climate Variability

Table 3

Trend analysis results on monthly basis.

Month	Sen’s slope (mm/month in year)
	Dyraaba Estate	Hilpankandura Estate	Kirklees Estate	Ledgerwatte Estate	Welimada Group
Jan	IS	IS	IS	IS	IS
Feb	IS	IS	IS	IS	IS
Mar	IS	IS	7.2	4.3	3.2
Apr	IS	IS	IS	IS	IS
May	IS	IS	IS	IS	IS
Jun	IS	−2.7	IS	IS	IS
Jul	IS	IS	IS	IS	IS
Aug	IS	IS	IS	IS	IS
Sep	IS	IS	IS	IS	IS
Oct	IS	IS	IS	IS	IS
Nov	IS	IS	IS	IS	IS
Dec	IS	IS	IS	IS	IS

IS: insignificant.