National Weather Service Forecast Office - Charleston, WV

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March 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	Snow
1	51	31	41	77	1976	2	1934	24	0	.13	0.2
2	51	32	41	81	1991	7	1980	24	0	.13	0.3
3	51	32	42	80	1976	-2	1943	24	0	.12	0.2
4	52	32	42	84	1976	-5	1943	23	0	.13	0.2
5	52	32	42	83	1992	5	1978	23	0	.13	0.3
6	52	32	42	80	1956	10	1917	23	0	.13	0.2
7	53	33	43	81	2009*	11	1917	22	0	.12	0.3
8	53	33	43	82	2000	7	1943	22	0	.13	0.2
9	53	33	43	81	1974*	10	1996	22	0	.13	0.2
10	54	34	44	82	1925	6	1996	21	0	.13	0.3
11	54	34	44	83	1990	13	1933	21	0	.12	0.2
12	55	34	44	87	1990	11	1934	21	0	.13	0.2
13	55	34	45	88	1913	10	1960	20	0	.13	0.2
14	55	35	45	89	1990*	11	1960	20	0	.14	0.2
15	56	35	45	83	1944	5	1993	20	0	.13	0.2
16	56	35	46	85	1942	12	1911	19	0	.13	0.2
17	57	36	46	82	1927	17	1941	19	0	.13	0.1
18	57	36	46	84	1903	13	1941	19	0	.14	0.2
19	57	36	47	87	1945*	14	1967*	18	0	.13	0.2
20	58	37	47	90	1921	15	1923	18	0	.12	0.2
21	58	37	48	85	1921	9	1965	18	0	.13	0.2
22	59	37	48	86	1907	16	1986	17	0	.13	0.1
23	59	38	48	87	1907	19	2004*	17	0	.12	0.2
24	59	38	49	90	1929	20	1973	17	0	.12	0.2
25	60	38	49	92	1929	17	1960	16	0	.12	0.1
26	60	38	49	88	1921	16	1955	16	0	.12	0.2
27	61	39	50	90	1921	16	1955	16	0	.12	0.1
28	61	39	50	86	1989*	15	1947	15	0	.12	0.1
29	61	39	50	85	1910*	22	1966*	15	0	.12	0.1
30	62	40	51	87	1998	20	1964*	15	0	.11	0.1
31	62	40	51	87	1998	17	1923	14	0	.12	0.1
Totals	56.2	35.4	45.8	92	1929	-5	1943	600	5	3.91	5.8

NOTES:

Temperatures are degrees F, precipitation is inches of liquid. All normals are based on the period 1981-2010.
RH Year=Year of record high, RH Low=Year of record low. Temperature records for Charleston began in 1901.
HDD=Heating degree days, CDD=Cooling degree days
An asterisk (*) after the year of occurrence of record highs and lows indicates the record was reached more than once, with the indicated year being the most recent.
For some dates the degree days are shown by a pound sign (#). The symbol represents a value of less than one degree day, but more than zero degree days. It is used to smooth through aperiodic oscillations of zeroes and ones that are climatologically unreasonable. For example, if a station has 17, 15, and 18 normal heating degree days in June, July, and August, respectively, it is not possible to distribute the 15 July degree days evenly throughout the month using integer values (zeroes and ones) without creating unrealistic oscillations through the 3-month period. The use of fractional degree days (pound signs) does allow for a smooth transition from June through July to August.
Daily normal precipitation/snowfall values are more appropriate for calculating normals over a period of at least several days, rather than on a strict day-to-day basis.
Averages/totals may differ slightly from expected due to rounding.

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