National Weather Service Forecast Office

May Daily/Monthly Normals for Charleston
(see notes below table)
Date	Normal High	Normal Low	Average	Record High	RH Year	Record Low	RL Year	HDD	CDD	Precip
1	72	49	60	94	1942	31	1969	6	1	.13
2	72	49	61	90	1944*	28	1963	6	1	.14
3	72	49	61	92	1942	31	2005	6	1	.13
4	73	49	61	94	1928	29	1986	5	1	.15
5	73	50	61	94	1932	31	1907	5	1	.15
6	73	50	61	94	1930	31	1968	5	1	.15
7	73	50	62	95	1930	29	1968	5	1	.15
8	73	50	62	96	1930	30	1947	5	2	.15
9	73	51	62	98	1930	28	1947	5	2	.15
10	74	51	62	97	1930	26	1966	5	2	.15
11	74	51	63	94	1936	28	1966	4	2	.15
12	74	52	63	90	1979	35	1913	4	2	.16
13	74	52	63	91	1982	33	1996	4	2	.15
14	74	52	63	94	1916	31	1996	4	2	.16
15	75	52	63	92	1916	35	1920	4	2	.17
16	75	53	64	92	1962*	35	1974	4	2	.15
17	75	53	64	91	1962	34	1974	4	3	.16
18	75	53	64	95	1931	33	1973	4	3	.16
19	75	54	64	94	1911	35	2009*	3	3	.15
20	76	54	65	96	1934	32	2002	3	3	.16
21	76	54	65	97	1934	35	2002	3	3	.16
22	76	54	65	96	1941	30	2002	3	3	.15
23	76	55	65	92	1939	34	1963	3	3	.16
24	76	55	66	93	1933	32	1963	3	3	.16
25	77	55	66	92	1991*	33	1956	2	3	.15
26	77	56	66	94	1916	37	1925	2	4	.17
27	77	56	67	95	1918	37	1949	2	4	.16
28	77	56	67	96	1931	38	1907	2	4	.17
29	78	57	67	96	1931*	38	1949	2	4	.17
30	78	57	67	96	1931	38	1949	2	4	.16
31	78	57	68	98	1929	38	1966	2	4	.17
Totals	74.8	52.7	63.7	98	1930	26	1966	117	78	4.80