WALLA WALLA 13 ESE, OR

Total of Snowfall (Inches)

(358985)

File last updated on April 19, 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)	JUL		AUG		SEP		OCT		NOV		DEC		JAN		FEB		MAR		APR		MAY		JUN		ANN
1947-48	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1948-49	-----	z	0.00		0.00		0.00		10.20		59.80	a	22.10		61.00		0.00		0.00		0.00		0.00		153.10	a
1949-50	0.00		0.00		0.00		0.40		0.00		45.50		76.00		17.00		20.00		-----	z	1.50		0.00		160.40	a
1950-51	0.00		0.00		0.00		0.00		12.00		13.50	a	23.10		8.00	a	20.80	g	0.00		0.00		0.00		56.60	a
1951-52	0.00		0.00		0.00		0.00		0.00		40.80		24.80		14.00		17.00		0.00		0.00		0.00		96.60
1952-53	0.00		0.00		0.00		0.00		0.00		2.50		2.00		18.00		8.00		1.00		0.00		0.00		31.50
1953-54	0.00		0.00		0.00		0.00		0.00		12.00		17.10		4.00		3.00		0.00		0.00		0.00		36.10
1954-55	0.00		0.00		0.00		0.00		0.00		11.60		26.60		26.50		29.40		0.00		0.00		0.00		94.10
1955-56	0.00		0.00		0.00		2.00	a	21.40		20.60		25.30		43.10		21.30	a	0.00		0.00		0.00		133.70
1956-57	0.00		0.00		0.00		2.10		8.80		2.60		38.70	a	33.40	a	5.00		4.00		0.00		0.00		94.60
1957-58	0.00		0.00		0.00		0.00		1.10		5.00		6.00		0.00		5.50		1.00		0.00		0.00		18.60
1958-59	0.00		0.00		0.00		0.00		4.80		3.00		18.00		15.80		7.60		0.00		0.00		0.00		49.20
1959-60	0.00		0.00		0.00		0.00		3.00		4.60		18.70		14.00		14.80		0.00		0.00		0.00		55.10
1960-61	0.00		0.00		0.00		0.00		1.50		5.80		0.50		9.00		15.00		0.00		0.00		0.00		31.80
1961-62	0.00		0.00		0.00		0.00		15.00		12.50		6.00		4.50		19.00		0.00		0.00		0.00		57.00
1962-63	0.00		0.00		0.00		0.00		2.00		1.00		13.50		1.50		2.50		0.00		0.00	a	0.00		20.50
1963-64	0.00		0.00		0.00		0.00		0.00		12.00		41.00		12.90		23.50		1.00		0.00		0.00		90.40
1964-65	0.00		0.00		0.00		0.00		11.00		28.50		26.70		15.50		2.00		0.00		0.00		0.00		83.70
1965-66	0.00		0.00		0.00		0.00		3.00		9.80		41.00		30.00		32.80		0.00		0.00		0.00		116.60
1966-67	0.00		0.00		0.00		0.00		0.00		2.50		8.00		7.00		20.50		0.00		0.00		0.00		38.00
1967-68	0.00		0.00		0.00		0.00		2.00		9.00		6.00	j	0.00		0.00		2.50		0.00		0.00		13.50	a
1968-69	0.00		0.00		0.00		0.00		1.00		33.60		55.40		12.20		6.00		7.00		0.00		0.00		115.20
1969-70	0.00		0.00		0.00		0.00		2.00		10.70		13.90		4.50		1.50		7.00		0.00		0.00		39.60
1970-71	0.00		0.00		0.00		0.00		2.50		8.50	c	14.80		9.00		17.00		0.00		0.00		0.00		51.80
1971-72	0.00		0.00		0.00		4.00	a	0.00		55.00		19.70		13.00		2.50		4.00		0.00		0.00		98.20
1972-73	0.00		0.00		0.00		3.00		0.00		9.50		5.80		10.00		2.00		0.00		0.00		0.00		30.30
1973-74	0.00		0.00		0.00		2.00		53.00	a	26.00	a	10.20		3.50		1.00		2.00		0.00		0.00		97.70
1974-75	0.00		0.00		0.00		0.00		2.00		14.00		31.50		18.00		2.00		7.00		0.00		0.00		74.50
1975-76	0.00		0.00		0.00		0.50		14.00	a	8.50	n	-----	z	0.00	j	-----	z	-----	z	-----	z	-----	z	14.50	g
1976-77	0.00		0.00		0.00		-----	z	0.00		-----	z	-----	z	0.00		0.00		0.00		0.00		0.00		0.00	c
1977-78	0.00		0.00		0.00		-----	z	-----	z	22.10	c	6.30		2.00	i	5.00		0.00		0.00		-----	z	33.40	d
1978-79	-----	z	-----	z	-----	z	-----	z	8.00		-----	z	-----	z	-----	z	-----	z	-----	z	0.00		0.00		8.00	i
1979-80	0.00		0.00		0.00		0.00		8.00		1.00		14.50		6.00		7.50		0.00		0.00		0.00		37.00
1980-81	0.00		0.00		0.00		0.00		5.00		6.60		-----	z	0.50		0.00		0.00		-----	z	-----	z	12.10	c
1981-82	-----	z	0.00		0.00		0.00		4.50		21.80		32.00	a	7.10		4.00	b	1.90		0.00		0.00		71.30	a
1982-83	0.00		0.00		0.00		0.00		3.50		12.00		0.00		0.50	b	0.00		-----	z	0.50		0.00		16.50	a
1983-84	0.00		0.00		0.00		0.00		-----	z	-----	z	0.00	y	13.60		1.90		1.70		0.00		0.00		17.20	c
1984-85	0.00		0.00		0.00		0.50		5.90		34.60		2.80	a	25.50	a	5.10		4.10		0.00		0.00		78.50
1985-86	0.00		0.00		0.00		1.80		25.00		5.50		4.80	b	12.60		0.00		-----	z	-----	z	-----	z	49.70	c
1986-87	-----	z	-----	z	-----	z	0.00		2.40		3.30		13.30		2.80		4.00		0.00		0.00		0.00		25.80	c
1987-88	0.00	a	0.00		0.00		0.00		0.00		6.60		15.60	g	0.00		4.00		0.00		0.00		0.00		10.60	a
1988-89	0.00		0.00		0.00		0.00		10.00	a	12.40	a	32.20		9.20		6.00		0.00		0.00		0.00		69.80
1989-90	0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00	o	0.00		0.00		0.00		0.00		0.00	a
1990-91	0.00		0.00		0.00		0.00		0.00		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	g
1991-92	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1992-93	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1993-94	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1994-95	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1995-96	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1996-97	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1997-98	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1998-99	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1999-00	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
2000-01	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
Period of Record Statistics
MEAN	0.00		0.00		0.00		0.41		5.92		15.42		19.78		12.72		8.11		1.19		0.05		0.00		66.93
S.D.	0.00		0.00		0.00		0.94		9.64		15.12		16.67		12.81		8.93		2.13		0.25		0.00		32.94
SKEW	0.00		0.00		0.00		2.40		3.20		1.46		1.32		1.85		1.18		1.81		5.26		0.00		0.25
MAX	0.00		0.00		0.00		4.00		53.00		59.80		76.00		61.00		32.80		7.00		1.50		0.00		133.70
MIN	0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		18.60
YRS	39		41		41		40		41		38		35		38		39		37		39		38		26