Spatio-Temporal Rainfall Variability and Concentration over Sri Lanka

Table 3

Summary of the annual and seasonal rainfall of the Sri Lanka (1990–2019).

SN	Stations	Annual					SWMS					NEMS
		Mean	Max	Min	SD	CV	Mean	Max	Min	SD	CV	Mean	Max	Min	SD	CV
1	Jaffna	1382	1965	903	318	23	224	565	28	123	55	373	976	81	201	54
2	Vavuniya	1433	2106	1038	238	17	311	588	144	126	40	438	838	216	174	40
3	Trincomalee	1648	2910	996	367	22	335	603	96	126	38	601	1619	205	252	42
4	Puttalam	1205	1734	819	263	22	256	539	48	134	52	246	579	83	110	45
5	Mahailluppallama	1480	2090	1011	272	18	292	848	53	178	61	390	748	104	167	43
6	Parakrama Samudraya	1790	2941	846	480	27	245	581	51	140	57	771	1532	294	313	41
7	Batticaloa	1870	3621	1010	542	29	247	500	30	112	45	890	2403	388	423	48
8	Kurunegala	1991	2737	1228	326	16	632	1119	334	203	32	283	719	57	142	50
9	Katugastota	1868	2666	1300	287	15	590	898	375	147	25	404	767	95	175	43
10	Badulla	1777	2525	1035	349	20	398	785	209	133	33	574	1354	250	217	38
11	Colombo	2402	3370	1774	371	15	1001	1703	639	243	24	326	582	102	120	37
12	Ratnapura	3682	4711	2801	499	14	1782	2508	1271	376	21	475	894	220	178	37
13	Wellawaya	1996	3158	1466	457	23	342	665	98	158	46	446	855	190	167	38
14	Galle	2335	3091	1537	406	17	1068	1590	471	296	28	333	586	136	127	38
15	Hambantota	1064	1734	649	232	22	304	734	78	125	41	258	466	73	113	44

SWMS = southwest monsoon season; NEMS = northeast monsoon season; Max = maximum; Min = minimum, SD = standard deviation; CV = coefficient of variability.