BACK BAY WILDLIFE REFUGE, VA

Total of Precipitation (Inches)

(440385)

File last updated on April 20, 2024
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.

YEAR(S)	JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC		ANN
1953	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	2.58	k	0.00	l
1954	6.75		1.18		3.01		3.20		4.86		0.08		5.15		5.48		1.95		0.88		1.91		2.13		36.58
1955	2.59		2.74		4.06		1.57		2.07		3.51		1.86		8.63	c	6.51		0.93		1.68		1.61		37.76
1956	2.20		4.77		3.29		3.38		4.80		2.19		8.68		3.34		4.52		6.51		1.20		1.55		46.43
1957	4.43		6.04		4.18		1.28		2.90		1.46		2.67		11.49		5.86		4.16		7.25		5.06		56.78
1958	4.43		2.72		4.12		2.93		5.55		4.74		5.13		9.46		1.00		6.67		1.86		2.57		51.18
1959	1.95		2.92		6.00		4.65		1.11		1.57		7.02		1.35		3.32		5.98		2.38		2.46		40.71
1960	3.35	b	4.43		2.31		1.32		5.25		5.20		6.30		7.29		4.05		5.78		1.75		2.60		49.63
1961	3.47		5.82		3.41	a	3.41	a	4.65		5.15		4.62		5.19		3.53		6.23		2.11		3.33		50.92
1962	6.53	a	3.21		4.23		3.08		3.09		4.28		6.81		3.31		2.93		5.72		4.92		2.53		50.64
1963	3.56		4.04		3.05		1.23		1.78		8.77		4.32		4.51		4.87		0.80		4.86		2.99		44.78
1964	4.43		4.77		2.93		3.79		2.16		2.54		4.01		9.24		17.03		4.46		0.87		4.98		61.21
1965	1.54		3.08		2.72		3.24		1.41		-----	z	7.46		3.03		1.65		1.37		0.41		0.63		26.54	a
1966	4.81		4.37		1.68		1.46		8.15		3.57		2.66		8.43		2.63		0.93		0.60		3.75		43.04
1967	3.69		3.48		1.64		0.96		2.45		2.09		9.31		12.66		4.84		0.42		2.29		4.16		47.99
1968	4.01		1.80		5.48		4.12		2.52		2.82		5.40		3.63		1.28		6.82		4.00		2.43		44.31
1969	2.86		2.47		6.22		2.86		1.52		3.15		7.70		6.18		4.34		1.49		3.81		4.03		46.63
1970	2.69		4.43		2.45		4.77		3.34		2.99		6.94		4.62		1.26		1.28		4.25		3.73		42.75
1971	3.14		3.14		4.96		2.47		4.11		2.02		3.90		4.61		4.76		9.32		2.11		1.30		45.84
1972	3.52		3.77		3.52		1.88		6.96		3.62		4.95		3.31		6.70		5.10		6.02		3.55		52.90
1973	3.17		2.81		4.80		3.44		5.40		2.87		5.19		4.69		1.70		0.86		1.01		5.81		41.75
1974	3.75		4.88		4.71		1.92		3.71		5.69		4.04		5.48		4.70		2.01		1.41		2.65		44.95
1975	4.94	a	3.51	b	5.46		4.17		2.85		2.09	k	5.62	c	2.13		10.88		3.85		2.09		4.16		49.66	a
1976	3.73		1.61		2.43		1.15		3.58		2.27	d	3.89		7.81		4.79		1.71	d	2.16		1.84	d	36.97
1977	2.36		1.57		4.37		1.74		4.21		1.94		2.41		4.48		2.17		7.28		6.22		4.63	a	43.38
1978	7.50		0.76	a	4.82	a	3.27		9.31		3.95		3.30		3.08		0.30	a	1.35		5.45		1.52	b	44.61
1979	6.15		4.31	a	3.38		3.75		6.91		3.75		4.20		4.27		7.83		2.34		4.14		1.57		52.60
1980	3.52	a	1.41	a	3.14	b	4.05	b	5.98		0.94		1.92		4.77		1.74		5.84		1.70		2.54		37.55
1981	1.37		3.21		2.10		1.60	i	2.25		4.97		5.40		10.30		3.61		2.66		1.82		4.67		42.36	a
1982	5.14	c	6.25		3.57		3.53		2.39		5.31	b	9.30		6.18		6.66		3.41		4.13	b	3.80		59.67
1983	3.14	a	5.78		5.55		5.83		3.43		5.36		1.59		1.99		7.58		3.03		2.52	a	4.68		50.48
1984	3.31		4.80	a	3.87		2.11	b	5.72		0.48		7.40		3.59		6.43		0.47		2.42		1.84	a	42.44
1985	3.63	a	4.97		1.53		0.78		2.19		4.03	c	3.87		1.86		5.23		3.30		4.38		1.47	a	37.24
1986	2.42	a	1.25		0.94		2.06		0.51		3.89		0.75		9.16		0.38		0.60		2.06	b	2.80		26.82
1987	11.70	b	1.84	c	3.04	c	0.88		2.58		2.44		0.60	c	3.28	a	4.55		1.30		2.65		3.00	b	37.86
1988	3.65	b	2.23		2.07	a	3.51		5.33	e	6.23		2.29		7.53	a	1.82		2.10	b	3.27		0.57		40.60
1989	3.75	f	6.21	b	8.41	c	4.19	c	4.37	c	5.32	b	4.24	b	11.73	a	5.13	i	4.52	b	4.86		4.77	a	58.62	b
1990	3.37	b	3.02		3.66	a	2.95	a	6.33	c	1.01	a	7.29	c	6.24	a	1.87		4.76	a	2.53		3.27	h	43.03	a
1991	6.08	b	1.63	c	5.56	c	4.62		1.32	a	3.22	c	8.45	d	6.47	a	2.82		5.40	a	0.87	a	2.40	a	48.84
1992	4.18	b	2.31	b	2.32		0.96	b	-----	z	2.00	a	4.42	b	12.81	b	7.41	a	2.35	b	5.30	a	2.81	d	46.87	a
1993	6.05	b	1.85	c	5.68		1.39	e	2.14	a	3.22		0.62	e	0.74	a	6.06	a	4.52	e	2.67	a	3.26	d	38.20
1994	5.86	d	4.01	a	7.71	a	0.63		2.96	a	1.92	b	5.11	b	5.44	b	2.28	c	2.59	a	2.92	c	1.54	d	42.97
1995	2.78	e	4.11	c	3.10	a	1.45	a	3.79		2.64		1.41	a	2.08	b	3.65		4.49	a	2.90	g	0.49	q	29.50	b
1996	2.07	l	2.95	d	4.27		3.08	a	3.44	d	4.20	b	11.97	d	4.15	a	1.84		5.77		3.06	b	3.64	c	48.37	a
1997	2.22	c	3.49	c	2.89	d	3.36	b	1.22	c	3.16	b	3.97		0.97		2.07	b	3.99	b	3.23	e	4.86	d	35.43
1998	7.05		2.93	d	3.31	c	2.95	c	4.90	d	4.30	c	2.57	c	5.36	e	3.03	c	2.04	d	2.59	b	5.66	c	46.69
1999	2.98	k	1.90	h	3.23	d	3.22	d	2.72	f	3.14	d	5.77	d	5.88	h	11.54	f	8.46	n	1.75	c	1.82	f	17.11	g
2000	4.17	h	1.67	g	3.78		6.07	c	4.54	b	8.00	c	7.09	b	11.21	e	4.47	c	0.00		1.74	f	2.06	d	47.22	c
2001	0.90	c	3.59	e	3.63	h	4.54		1.39	f	2.88		2.52		3.69		1.99		1.10	e	0.06		1.29		22.56	b
2002	6.04	k	2.32	a	8.68	m	5.15	e	3.25	c	7.86	c	2.04		4.17	f	7.91	j	3.72	j	6.14	k	5.38	d	26.00	f
2003	1.88	d	6.80	i	6.23	g	9.07	a	4.29	b	7.26	e	5.52	a	4.85	c	8.99	g	-----	z	1.79	b	7.00	b	41.66	d
2004	4.09	i	2.13		2.42	b	2.47	c	3.59	c	9.44	g	10.47	v	13.45	c	5.00	a	4.53	f	2.82	f	0.42	w	29.06	f
2005	2.82	e	3.06	b	3.51	g	3.00	k	5.92	f	5.02	a	3.68	h	7.75	d	1.03	b	5.85	e	2.88	b	2.99	d	31.40	d
2006	2.38	g	-----	z	1.49	f	3.20	f	-----	z	11.09	f	5.66	o	0.52	e	10.30	i	2.90	h	6.58	d	1.65	b	8.75	i
2007	3.23	j	2.62	b	0.88	b	2.53	g	0.51	f	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	3.50	j
2008	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
2009	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
2010	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
2011	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
2012	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
2013	-----	z	-----	z	-----	z	-----	z	-----	z	0.16	y	0.90	s	0.22	x	0.09	u	-----	z	-----	z	-----	z	0.00	l
2014	-----	z	0.26	y	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
2015	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
2016	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
2017	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
Period of Record Statistics
MEAN	3.97		3.33		3.72		3.00		3.77		3.65		4.79		5.76		4.10		3.42		2.91		3.11		44.84
S.D.	1.95		1.41		1.59		1.62		1.90		1.92		2.52		3.35		2.96		2.29		1.69		1.47		7.11
SKEW	1.53		0.34		0.71		1.05		0.70		0.65		0.46		0.63		1.95		0.39		0.70		0.46		0.13
MAX	11.70		6.25		8.41		9.07		9.31		8.77		11.97		13.45		17.03		9.32		7.25		7.00		61.21
MIN	0.90		0.76		0.88		0.63		0.51		0.08		0.60		0.52		0.30		0.00		0.06		0.57		26.82
YRS	46		50		49		50		48		49		50		51		48		48		49		49		37