MOUNT ADAMS RS, WA

Total of Snowfall (Inches)

(455659)

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
1909-10	-----	z	-----	z	-----	z	-----	z	15.00		32.00		-----	z	61.50		0.00		2.50		-----	z	-----	z	111.00	g
1910-11	-----	z	-----	z	-----	z	-----	z	23.00		10.40		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	33.40	j
1911-12	-----	z	-----	z	-----	z	-----	z	-----	z	29.20	v	59.50		6.50		-----	z	-----	z	-----	z	-----	z	66.00	j
1912-13	-----	z	-----	z	-----	z	-----	z	-----	z	50.30	t	98.90		8.80	w	9.40	a	2.00		-----	z	-----	z	110.30	i
1913-14	-----	z	-----	z	-----	z	-----	z	20.60	v	26.20	w	47.40	r	6.00		-----	z	-----	z	-----	z	-----	z	6.00	k
1914-15	-----	z	-----	z	-----	z	-----	z	-----	z	22.30	w	44.00		12.00	v	0.00		-----	z	-----	z	-----	z	44.00	j
1915-16	-----	z	-----	z	-----	z	-----	z	31.70		48.80		92.00		70.30		84.70	u	1.20		-----	z	-----	z	244.00	g
1916-17	-----	z	-----	z	-----	z	-----	z	8.50	a	52.00		21.00		48.00		35.50		-----	z	-----	z	-----	z	165.00	g
1917-18	-----	z	-----	z	-----	z	-----	z	7.50		5.50		8.00		25.50		13.50		3.00		-----	z	-----	z	63.00	f
1918-19	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1919-20	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1920-21	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1921-22	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1922-23	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1923-24	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1924-25	-----	z	-----	z	-----	z	4.00		0.50		6.00		0.00		-----	z	0.00		0.00		0.00		-----	z	10.50	e
1925-26	-----	z	-----	z	-----	z	-----	z	3.50		16.40		8.90		3.10		-----	z	-----	z	-----	z	-----	z	31.90	h
1926-27	-----	z	-----	z	-----	z	-----	z	11.60		21.90	v	47.00		32.30	a	13.00		4.00		-----	z	-----	z	107.90	g
1927-28	-----	z	-----	z	-----	z	-----	z	4.50		37.40		21.60	a	6.60	u	-----	z	-----	z	-----	z	-----	z	63.50	i
1928-29	-----	z	-----	z	-----	z	-----	z	0.00		51.60		58.00		5.00		-----	z	13.00		-----	z	-----	z	127.60	g
1929-30	-----	z	-----	z	-----	z	-----	z	-----	z	29.50		58.50		13.00		0.00		-----	z	-----	z	-----	z	101.00	h
1930-31	0.00		-----	z	-----	z	-----	z	24.00		14.50		41.00		10.50		6.00		-----	z	-----	z	-----	z	96.00	f
1931-32	-----	z	-----	z	-----	z	-----	z	21.00		84.50		64.00		23.50		1.50		1.00		-----	z	-----	z	195.50	f
1932-33	-----	z	-----	z	-----	z	-----	z	-----	z	39.00		100.50		51.00		12.00		0.00		-----	z	0.00		202.50	f
1933-34	-----	z	0.00		0.00		-----	z	-----	z	26.70		3.00		0.00		0.00		0.00		-----	z	0.00		29.70	d
1934-35	0.00		-----	z	-----	z	-----	z	6.00		43.30		42.80	t	8.50		14.00		1.00		-----	z	-----	z	72.80	f
1935-36	-----	z	-----	z	-----	z	-----	z	-----	z	9.50	a	31.00		47.20		8.00		-----	z	-----	z	-----	z	95.70	h
1936-37	-----	z	-----	z	-----	z	-----	z	-----	z	6.50		39.50		45.00	r	-----	z	0.00		-----	z	0.00		46.00	h
1937-38	-----	z	-----	z	-----	z	-----	z	-----	z	43.50	y	31.50	s	61.00	j	35.50	x	-----	z	-----	z	0.00		0.00	k
1938-39	-----	z	-----	z	-----	z	-----	z	-----	z	11.30	u	15.00	x	32.50	p	11.50	w	-----	z	-----	z	-----	z	0.00	l
1939-40	-----	z	-----	z	-----	z	-----	z	-----	z	5.90		18.40	a	35.00		-----	z	-----	z	-----	z	-----	z	59.30	i
1940-41	-----	z	-----	z	-----	z	0.00		8.00		5.00		28.80		1.00		-----	z	-----	z	-----	z	-----	z	42.80	g
1941-42	-----	z	-----	z	-----	z	-----	z	-----	z	24.20	a	25.00		17.00		0.00		-----	z	-----	z	-----	z	66.20	h
1942-43	-----	z	-----	z	-----	z	-----	z	34.50		78.90		77.00		12.00	a	9.00		0.00	a	0.00		0.00		211.40	d
1943-44	0.00		0.00		0.00		0.00		2.00		3.00		18.00		3.90	a	0.00		1.00		0.00		0.00		27.90
1944-45	0.00		0.00		0.00		0.00		8.50		7.20		11.80		15.40		4.60		10.00		0.00		0.00		57.50
1945-46	0.00		0.00		0.00		0.00		35.00		17.00	a	20.50	a	32.00		2.00		0.00		0.00		0.00		106.50
1946-47	0.00		-----	z	0.00		2.00		31.00		2.10		28.50		3.00		1.50		-----	z	0.00		-----	z	68.10	c
1947-48	0.00		0.00		0.00		0.00		5.00		8.00		35.00	u	28.00		-----	z	-----	z	-----	z	0.00	b	41.00	d
1948-49	0.00		0.00		0.00		0.00		17.70	c	78.80		17.00		83.00		1.00		0.00		0.00		0.00		197.50
1949-50	0.00		0.00		0.00		0.00		0.00		39.00	c	140.00	a	31.30		14.40		0.00		0.00		0.00		224.70
1950-51	0.00		0.00		0.00	a	0.00		61.50		19.00		91.00	b	12.00	g	52.20	j	0.00	b	0.00		0.00		171.50	b
1951-52	0.00		0.00		0.00		0.00		11.00		55.00	a	87.50		10.80		11.00		0.00		0.00		0.00		175.30
1952-53	0.00		0.00		0.00		0.00		0.00	j	59.00		20.00		3.50		8.00		6.00		0.00		0.00	j	96.50	b
1953-54	0.00		0.00	g	0.00		0.00		0.00		4.00		127.00		6.00		2.00		0.00		0.00		0.00		139.00	a
1954-55	0.00	g	0.00		0.00		0.00		0.00		25.00		32.00		17.10		25.00		4.00		0.00		0.00		103.10	a
1955-56	0.00		0.00		0.00		0.00		34.90	c	50.00		86.50		53.30		31.00		0.00		0.00		0.00	d	255.70
1956-57	0.00		0.00		0.00		0.00		3.90	d	12.50		37.70		26.30		21.80	a	0.00		0.00		0.00	e	102.20
1957-58	0.00	d	0.00	g	0.00		0.00		0.00	b	31.00	c	8.80	c	0.00		1.50	y	0.50		0.00		0.00		40.30	b
1958-59	0.00		0.00		0.00		0.00		7.60	b	6.30		11.10	b	36.40		0.00	d	0.00		0.00		0.00		61.40
1959-60	0.00		0.00		0.00		0.00		0.00	d	3.10		34.10	b	2.00		27.40		8.10		0.00		0.00		74.70
1960-61	0.00		0.00		0.00		0.00		5.60	c	11.20	h	6.80		18.20	b	26.70		2.00		0.00		0.00		59.30	a
1961-62	0.00		0.00		0.00		0.00		0.00	h	21.50	b	0.00	e	16.80	b	17.00	r	0.00		0.00		0.00		38.30	b
1962-63	0.00		0.00		0.00		0.00		0.00		0.00		9.40		2.30		-----	z	0.00		0.00		0.00		11.70	a
1963-64	0.00		0.00		0.00		0.00		0.00		-----	z	40.80	a	6.60		12.00		0.00	a	0.00		0.00		59.40	a
1964-65	0.00		0.00		0.00		0.00		23.00		70.50	c	70.00	d	-----	z	5.00		0.00		0.00		0.00		168.50	a
1965-66	0.00		0.00		0.00		0.00		0.00		59.00	c	52.50	a	2.00		33.00	a	0.00		0.00		0.00		146.50
1966-67	0.00		0.00		0.00		0.00		0.00		35.70	a	23.00		17.50		10.50		0.00		0.00		0.00		86.70
1967-68	0.00		0.00		0.00		0.00		9.00		32.50		70.00		0.00		0.00		0.00		0.00		0.00		111.50
1968-69	0.00		0.00		0.00		0.00		0.00		54.00	a	152.80	a	14.00		0.00		0.00		0.00		0.00		220.80
1969-70	0.00		0.00		0.00		0.00		0.00		30.50	a	44.00	h	3.00		0.00	a	0.00		0.00		0.00		33.50	a
1970-71	0.00		0.00		0.00		0.00		22.00		84.50		56.80		14.00		29.30		0.00		0.00		0.00		206.60
1971-72	0.00		0.00		0.00		0.00		3.00	a	71.50	c	54.00		16.00		11.50		13.00		0.00		0.00		169.00
1972-73	0.00		0.00		0.00		0.00		1.50		-----	z	20.00		-----	z	0.00		0.00		0.00		0.00		21.50	b
1973-74	0.00		0.00		0.00		0.00		24.50	b	33.10	c	6.50	d	45.00		15.00		0.30		0.50		0.00		124.90
1974-75	0.00		0.00		0.00		0.00		0.00		15.00		-----	z	-----	z	8.50		2.00		0.00		-----	z	25.50	c
1975-76	-----	z	-----	z	0.00		0.00		-----	z	8.50	o	13.00	b	46.00	c	7.00		0.00		0.00		0.00		66.00	d
1976-77	0.00		0.00		0.00		0.00		0.00		2.00	b	-----	z	-----	z	7.00		0.00		0.00		0.00		9.00	b
1977-78	0.00		0.00		0.00		0.00		16.50		9.00		28.90		11.50		1.30		2.00		0.00		0.00		69.20
1978-79	0.00		0.00		0.00		0.00		6.50		2.80		18.10		12.00		0.00		0.00		0.00		0.00		39.40
1979-80	0.00		0.00		0.00		0.00		-----	z	1.00		22.00	g	2.50	d	7.50		0.00		-----	z	0.00		11.00	c
1980-81	0.00		0.00		0.00		0.00		-----	z	-----	z	-----	z	-----	z	0.00		0.00		0.00		0.00		0.00	d
1981-82	0.00		0.00		0.00		0.00		0.00		49.00		0.00	a	0.00	y	-----	z	-----	z	-----	z	0.00		49.00	d
1982-83	0.00		0.00		0.00		0.00		3.00		28.60		8.50	d	15.30	a	0.00		2.00		0.00		0.00		57.40
1983-84	0.00		0.00		0.00		0.00		4.60		-----	z	0.50	a	2.00		0.00		2.00		0.00		0.00		9.10	a
1984-85	0.00		0.00		0.00		1.00		31.60		0.00	d	-----	z	33.40		23.00	a	0.00		0.00		0.00		89.00	a
1985-86	0.00		0.00		0.00		0.00		-----	z	-----	z	46.40		-----	z	0.00		0.00		0.00		0.00		46.40	c
1986-87	0.00		0.00		0.00		0.00		-----	z	-----	z	-----	z	0.00	c	0.00		0.00		0.00		0.00		0.00	c
1987-88	0.00		0.00		0.00		0.00		0.00	a	22.90		29.40		0.00		4.00		0.00	a	0.00		0.00		56.30
1988-89	0.00		0.00		0.00		0.00	a	-----	z	24.30		19.30	a	26.30	c	14.10	a	6.00		0.00		0.00		90.00	a
1989-90	0.00	a	0.00		0.00		0.00		0.00	c	0.00		16.00	e	68.60	a	0.50	d	0.50		0.00		-----	z	85.60	a
1990-91	0.00		0.00		0.00		0.00		2.50		26.00	c	17.00	d	0.00		11.00	b	3.80	a	0.00		0.00		60.30
1991-92	0.00		0.00		0.00		4.50	b	0.50	d	9.80	a	10.00	a	0.00	a	0.00		0.00	b	0.00		-----	z	24.80	a
1992-93	-----	z	0.00		0.00		0.00		0.00	b	44.00	d	27.50	b	9.00	a	1.30	a	0.00		0.00		0.00		81.80	a
1993-94	0.00		0.00		0.00		0.00		3.50	a	0.50	a	0.00		16.80	b	1.00	a	0.00		0.00		0.00		21.80
1994-95	0.00		0.00		-----	z	0.00		15.10		17.50	b	17.50	c	10.50		0.50	a	0.00		0.00		0.00		61.10	a
1995-96	0.00		0.00		0.00		-----	z	2.00	a	6.10	l	53.60	h	12.30		0.00		0.00		0.00		0.00		14.30	c
1996-97	0.00		0.00		0.00		0.00		15.00	e	22.60	n	6.50	d	4.30		13.00	c	17.00		0.00		0.00		55.80	a
1997-98	0.00		0.00		0.00		0.00		2.00		0.00		23.00	b	0.00		0.00		0.00		0.00		0.00		25.00
1998-99	0.00		0.00		0.00		0.00		0.00		17.00	a	17.50	c	29.00	e	20.50	d	5.00	c	0.00		0.00		89.00
1999-00	0.00		0.00		0.00		0.00		0.00		2.90	a	81.60	l	13.40	f	0.00		0.00		0.00		0.00		2.90	b
2000-01	0.00		0.00		0.00		0.00		0.00	d	14.30	g	3.00	e	10.00	a	0.00	b	0.00		0.00		0.00	a	13.00	a
2001-02	0.00		0.00		0.00		0.00		16.00		62.70	h	5.00	h	3.70	b	18.00	b	0.00		0.00		0.00		37.70	b
2002-03	-----	z	0.00		0.00		0.00	d	0.00		20.30	g	3.50	b	0.00	c	2.00		0.00		0.00		0.00		5.50	b
2003-04	0.00		0.00		0.00		0.00		6.80		19.40	e	23.90	b	6.00	b	0.00		0.00		0.00		0.00		56.10
2004-05	0.00		0.00		0.00		0.00		0.50		4.80	h	9.60	c	5.60	c	0.00		0.00		0.00		0.00		15.70	a
2005-06	0.00		0.00		0.00		0.00		18.60	c	23.50	d	17.50	d	4.00		15.40		0.00		0.00		0.00		79.00
2006-07	0.00		0.00		0.00		0.00		27.10	d	17.00	d	8.10	b	20.00	a	1.50		0.00		0.00		0.00		73.70
2007-08	0.00		0.00		0.00		0.00		19.10	e	51.40	h	66.30	d	19.00	c	12.60		0.60	b	0.00		0.00		117.60	a
2008-09	0.00		0.00		0.00		0.00		0.00	a	53.50	f	20.00	c	5.00	h	12.20	f	0.00		0.00		0.00		20.00	c
2009-10	0.00		0.00		0.00		1.10	b	9.60	b	27.60	e	3.50	b	0.00		7.40		13.50	b	0.00		0.00		62.70
2010-11	0.00		0.00		0.00		0.00		31.70	a	39.20	d	7.00	e	22.50	h	11.00	h	2.00	l	0.00	u	0.00	a	77.90	d
2011-12	0.00	c	0.00	a	0.00	b	0.00	f	14.30	h	2.00	g	28.00	t	16.30	j	29.50	k	0.00	j	0.00	g	0.00	d	0.00	h
2012-13	0.00	b	0.00	b	0.00		0.00	b	1.50		49.00	k	2.10		1.10	f	7.50	g	0.60	b	0.00		0.00		4.20	c
2013-14	0.00	b	0.00	a	0.00	a	0.00	r	0.00	f	2.50	e	0.20	f	16.00	j	10.00	k	0.00	h	0.00	e	0.00	b	2.50	f
2014-15	0.00	a	0.00	a	0.00	c	0.00	g	1.50	l	4.70	k	5.60	f	0.00	g	0.00	x	0.00	p	0.00	v	0.00	g	0.00	i
2015-16	0.00	a	0.00	g	0.00	h	0.00	l	-----	z	48.50	k	20.50	l	4.50	j	3.00	o	0.00	x	-----	z	0.00	f	0.00	k
2016-17	0.00	e	0.00	c	0.00	g	0.00	q	0.00	y	44.10	l	40.00	l	47.00	i	9.50	h	0.00	y	0.00	p	0.00	u	0.00	j
2017-18	0.00	x	-----	z	0.00	n	0.00	v	4.00	y	-----	z	13.00	w	12.00	l	9.50	i	0.00	t	-----	z	-----	z	0.00	l
2018-19	0.00	s	0.00	u	0.00	q	0.00	x	-----	z	5.00	y	-----	z	70.00	l	6.50	l	0.00	v	-----	z	-----	z	0.00	l
2019-20	0.00	s	0.00	s	0.00	r	-----	z	1.00	x	8.50	l	39.50	k	0.00	j	3.00	p	0.00	h	0.00	m	0.00	l	0.00	l
2020-21	0.00	l	0.00	q	0.00	n	-----	z	9.50	t	5.50	n	10.50	o	10.00	n	0.00	v	0.00	e	0.00	a	0.00		0.00	i
2021-22	0.00	c	0.00		0.00		0.00		0.20		38.70	m	22.00	r	0.00	r	0.50	c	14.50	b	0.00	a	0.00		15.20	c
2022-23	0.00		0.00		0.00		0.00		24.00	d	38.00	h	5.50	k	14.00	j	9.00	i	3.50	j	0.00	d	0.00		24.00	e
2023-24	0.00		0.00		0.00		0.00	c	1.10	c	10.00	h	51.10	i	4.40	i	7.50	l	0.00	x	-----	z	-----	z	1.10	g
Period of Record Statistics
MEAN	0.00		0.00		0.00		0.17		9.68		26.24		34.29		17.56		7.69		1.78		0.01		0.00		104.80
S.D.	0.00		0.00		0.00		0.75		12.26		22.89		33.62		18.84		9.37		3.77		0.06		0.00		66.42
SKEW	0.00		0.00		0.00		4.82		1.57		0.89		1.51		1.47		1.25		2.56		8.25		0.00		0.82
MAX	0.00		0.00		0.00		4.50		61.50		84.50		152.80		83.00		35.50		17.00		0.50		0.00		255.70
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		21.80
YRS	75		73		75		73		79		74		80		77		77		80		71		74		29