STEVENS PASS, WA

Average of Average Temperature (Degrees Fahrenheit)

(458089)

File last updated on April 26, 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
1939	-----	z	25.50	a	35.94		40.31	c	43.79	b	47.36	b	57.98	a	60.32		51.52	a	42.12	b	37.10	a	30.50	f	44.19	b
1940	25.28	f	28.67	c	36.19	e	37.98	b	47.73		55.12	b	57.38	b	59.09	d	54.81	c	42.93	a	-----	z	-----	z	46.66	c
1941	28.39	q	29.20		37.32		40.05		42.95		48.25		60.44		55.44		44.43	a	39.92		33.12		25.10	a	41.47	a
1942	20.31		26.20		31.23	e	40.17	a	41.27	a	48.52	a	59.90		60.30	c	55.40		43.65	a	27.30		27.03	a	40.11
1943	18.33	a	31.33	j	28.40		39.23		39.26		46.12	d	56.15		53.69		55.45		54.40	u	35.10	f	25.48		40.24	c
1944	23.87		25.81		28.84	b	38.00		-----	z	52.50	e	57.21		54.02		55.30	g	47.00	o	29.91	a	23.08		37.03	c
1945	25.52		28.21	b	28.98	a	32.65		47.88	w	49.62	f	57.45	c	58.87	h	47.85		53.60	u	-----	z	-----	z	36.78	f
1946	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1947	-----	z	32.00	s	36.95	c	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	28.98	i	36.95	k
1948	-----	z	21.83		27.75	i	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	21.83	k
1949	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1950	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	29.52		30.62	a	30.07	j
1951	21.76		26.04		26.71		40.08		42.52	f	55.04	r	55.03	o	53.12	k	52.14	b	38.74		29.33	c	22.32		32.14	d
1952	19.53		26.64		29.42		38.74	a	42.48	i	46.33		57.35	a	55.17	e	53.79	d	49.81	b	30.57	b	25.79		39.38	a
1953	32.16		29.09	a	30.64	b	34.93	g	40.69	j	42.35	j	54.41	c	55.88	c	51.26	a	43.82	c	32.94	d	29.46	c	39.96	c
1954	20.97	b	29.02	c	25.61	l	31.32	m	42.81	g	45.33	x	50.62	f	50.21	e	49.50	g	40.32	f	36.98	h	25.74	d	31.48	h
1955	26.62	g	23.24	g	24.46	d	32.29	d	38.68	i	46.50	e	50.67	g	55.46	q	48.45	j	41.00	i	18.15	m	-----	z	34.42	i
1956	21.95		20.11	a	27.87		39.87	g	-----	z	-----	z	-----	z	-----	z	50.91	g	38.27	g	29.38	b	28.19		25.50	g
1957	15.53		25.67	a	30.53		37.28		47.26		50.07		52.71		52.53		55.62		38.68		32.22	a	28.95		38.92
1958	26.39		31.46		29.58		35.75		50.05		54.13		62.58		60.00	a	47.80		43.94		27.35		28.90	a	41.49
1959	23.32	a	25.28	a	29.21		36.02		40.00		48.32		57.26	b	53.20	a	43.56	n	40.81		30.15		25.89		37.22	a
1960	21.52		25.40		30.74		36.40		39.53		48.57		59.81		52.21		49.83		42.61		29.98		24.58		38.43
1961	27.03		29.04		30.39		33.65		41.42		55.00		58.13		61.40		46.00		38.21		26.52		24.44		39.27
1962	23.95		27.88		27.74		38.07		38.26	b	47.83	a	53.91	c	53.18	c	51.13	d	41.07	c	31.21	a	28.52		38.56
1963	21.10	a	34.74	a	30.74		33.45	a	42.77		48.05		51.47		56.29		54.24	a	41.65		29.70		25.90	b	39.17
1964	25.48		27.45		27.84		31.23		38.70	a	46.12		54.19		50.83	b	45.29	a	41.08		28.70	b	19.82	a	36.39
1965	25.98	c	26.91	a	30.39		37.53		40.35		49.00	a	58.68	a	54.18	c	47.60		43.82		33.43		23.97		39.32
1966	24.85	a	27.22	a	30.23	a	37.33	a	42.25	c	46.27		53.20	a	55.37		52.63		40.24		31.85		28.58	a	39.17
1967	27.81		28.50		26.97		32.40	a	40.69		51.33		58.02		62.05		55.83	a	39.16		32.18		25.29		40.02
1968	24.56		32.14	a	33.15		33.02		42.37		48.47		58.40	a	53.27		-----	z	-----	z	29.03	o	18.56	d	38.22	c
1969	13.50		23.52	a	32.15	a	34.42		46.28	b	58.43		59.70	a	63.55	b	51.53		-----	z	28.79	r	25.39		40.85	b
1970	22.08	a	30.04		29.87		31.33		43.70	a	-----	z	-----	z	-----	z	-----	z	-----	z	24.29	p	22.12	b	29.86	f
1971	24.71	c	27.57		24.44		31.92	k	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	29.78		21.15		25.53	g
1972	20.35	a	25.10		30.35		29.57	a	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	29.58	l	20.19		25.11	g
1973	21.15		28.95		30.45		35.43	a	42.68		47.02		55.02	d	54.23	g	49.32		38.54	d	24.37	c	27.43	a	36.39	a
1974	19.82		26.83	a	28.39		33.37		37.16		47.41	c	51.85		56.10	e	53.96	b	43.87		30.60		27.35	a	38.06
1975	23.23		22.46		26.35	a	30.57		39.06		43.77	b	56.77	a	50.40	f	51.83		37.34	b	27.93		26.07	a	35.03	a
1976	27.00	a	25.95		25.98	b	33.54	d	40.65	a	42.78	a	52.58	a	51.82		52.88		41.95		34.31	a	30.98	a	38.37
1977	24.22	a	30.00	a	28.03	a	38.34	a	38.63		51.73		52.72	b	61.33	b	44.63	c	39.65	h	25.88	b	24.43	a	38.18	a
1978	25.77	a	27.91		33.27		33.69	i	40.61	i	51.90	d	54.98	d	53.64	i	44.35	d	43.08	a	26.86	b	18.74	d	36.32	c
1979	15.23		23.80	a	32.84		35.00	a	44.24	h	48.19	d	55.97	a	55.74	d	52.84	e	44.60	f	27.19	i	28.68	a	38.70	c
1980	18.60		25.21		28.63		37.83		41.85		44.73	d	56.03	b	53.62	k	48.55	i	41.71	b	31.34	k	30.38	g	36.82	d
1981	29.68		27.95		33.85		34.38	a	40.71	l	44.37		52.20	d	59.74	f	49.66	b	39.52	c	34.85	f	25.02		37.40	c
1982	23.75	a	24.75	b	29.37	a	31.67		40.23	e	50.66	a	54.59	d	57.76	n	49.14	e	39.10	k	25.41	n	25.65	k	38.02	d
1983	29.90	a	29.06	c	33.71		36.98	b	43.89	d	48.24	g	52.24	n	56.58	e	45.02	j	40.43	b	31.18	k	16.71	b	35.91	d
1984	28.03	b	29.33	b	33.23	a	33.62		37.90	e	45.26	i	58.95	i	55.56	d	45.28	e	34.73	e	28.04	c	20.71	c	34.64	b
1985	21.27	a	22.94	a	29.66		36.98	f	42.74		48.00	h	62.63	p	54.96	g	44.93		37.45	c	16.00	f	24.56	e	31.94	e
1986	-----	z	26.54	b	35.37	d	32.98	i	41.02	e	52.16	e	50.12	k	62.00	t	45.10	a	45.14	c	32.31	f	23.44	e	38.40	e
1987	23.73		29.37	b	32.00		38.97	a	44.60	e	51.60	f	54.04	d	55.50	b	54.39	l	46.22	b	34.52	f	22.02	b	38.49	c
1988	22.83	a	29.10	c	30.90	a	35.86	b	40.93	d	46.86	a	56.64	j	55.36	j	43.87	o	46.74	b	29.96	f	27.07	a	35.04	d
1989	26.70	a	20.42	d	27.63		37.85		41.85	e	49.98	f	53.17	d	52.84	c	51.94	e	38.67	d	30.72	n	28.54	h	39.01	c
1990	26.93	c	23.60	c	32.94		39.61	b	38.89	h	46.06	d	59.75	q	58.60	g	53.24	k	35.89	h	30.50	p	19.17	b	31.38	f
1991	23.45	c	33.69	b	29.02	a	34.06	e	39.62	e	44.56	d	56.52	i	57.10	e	51.79	k	40.67	e	31.74	k	28.41	c	36.73	c
1992	26.75	a	31.26	b	37.20	h	38.81	d	47.98	e	58.55	j	55.22	h	57.74	n	47.96	f	40.39	h	30.82	m	22.68	a	33.50	g
1993	18.43	c	23.85	b	31.23	a	34.81	a	48.68	f	46.09	c	47.42	r	55.35	d	50.55	j	46.07	h	30.67	l	25.45	i	34.96	f
1994	31.76		25.04	c	34.16	b	36.96	f	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	30.32	i
Period of Record Statistics
MEAN	23.49		27.04		30.49		35.76		41.98		48.63		56.07		55.94		50.30		41.46		30.01		24.85		39.02
S.D.	4.07		3.08		3.02		2.96		3.06		3.50		2.81		3.44		3.76		3.08		2.79		3.47		1.20
SKEW	-0.18		0.04		0.33		-0.20		0.82		0.81		0.21		0.53		-0.23		0.40		0.31		-0.39		-0.11
MAX	32.16		34.74		37.32		40.31		50.05		58.43		62.58		63.55		55.83		49.81		37.10		30.98		41.49
MIN	13.50		20.11		24.44		29.57		37.16		42.78		51.47		50.21		44.35		34.73		24.37		16.71		36.39
YRS	46		50		50		43		35		36		34		32		33		33		28		43		13