SNAKE RIVER, WY

Average of Minimum Temperature (Degrees Fahrenheit)

(488315)

File last updated on April 25, 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
1905	-----	z	-----	z	-----	z	-----	z	-----	z	34.70	t	36.45		37.90	b	29.11	c	19.38	b	15.67		6.90	j	27.70	g
1906	6.81	d	4.16	c	1.73	a	18.28	a	23.00		31.04	b	36.00	e	35.42		26.89	k	21.78	d	10.27		15.10	a	18.51	a
1907	1.39	c	7.88	c	19.07	a	20.86	a	-----	z	32.65	m	34.67	a	32.00	d	28.11	b	25.89	c	13.87		-0.93	b	18.28	b
1908	-4.57	c	2.28		9.32		-----	z	28.87		33.53		38.45	b	37.67	a	30.03		27.83	y	16.41	a	0.83	b	19.28	b
1909	6.71		4.00		10.39		13.83		23.87		35.47	m	38.03		38.90	a	34.07	a	23.32		17.83	a	-4.45		18.77	a
1910	0.29		-1.54		16.77	a	20.27		25.13		32.23		39.16		29.97		31.23		22.87		18.57		4.06		19.92
1911	2.52		-8.07		12.45	b	24.93	a	27.90		39.67		35.55		31.81		29.50		19.71		5.27		-2.58		18.22
1912	5.74		1.93		6.81		15.63		24.29		33.47		41.68		39.68		31.20		23.93	a	19.20		1.97		20.46
1913	-5.80	a	-10.08	b	5.83	b	18.13		28.65		37.03		37.97	a	38.00	a	28.97		19.17	a	10.97		-12.55		16.36
1914	-1.16		3.54		3.55		22.90		26.87		32.67		37.84		-----	z	-----	z	-----	z	-----	z	-----	z	18.03	e
1915	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	47.83	a	47.23		35.48	a	28.74		21.95	k	-----	z	39.82	h
1916	-----	z	-----	z	15.13		19.68	h	-----	z	-----	z	-----	z	47.77	a	-----	z	16.89	v	1.14	b	-6.47	p	21.35	i
1917	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	39.00	i	32.00		29.00		17.87		17.33		19.40	a	23.12	g
1918	2.97		-0.29		9.52		14.70		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	6.72	h
1919	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	32.13	o	11.60	f	2.89	c	-4.19	d	-0.65	j
1920	-3.39	c	-3.71	e	6.45		20.69	n	24.91	h	29.20		36.42		34.85	d	27.72	a	20.14	b	10.30	c	4.17	a	16.21	b
1921	-4.28	m	1.75		11.85	d	14.40	e	29.09	h	34.87		34.94		33.83	a	24.55	a	19.17	b	15.05	i	4.61		20.00	c
1922	-8.42	e	-1.88	l	7.18	i	9.42	f	23.24	j	31.92	e	35.29		37.50	c	25.96	f	18.69	e	5.59	h	1.95	i	23.00	g
1923	4.41	i	-10.94	l	-2.81	e	15.33	i	25.92	f	30.36	h	40.41	b	33.03		28.97	a	22.52		11.71	b	-3.75	k	22.31	f
1924	-3.86	i	5.61	k	4.64	c	20.25	f	25.60	f	30.70		36.07	a	31.62	e	28.20		24.26	d	5.28	e	-4.61	h	22.97	e
1925	6.60	k	13.43	n	11.19	o	23.62	f	29.70	h	34.89	k	37.07	c	-----	z	34.14	a	22.79	l	15.05	i	12.48	b	27.90	i
1926	1.00	n	4.71	n	9.40	f	21.50	n	30.15	k	33.73		39.06		38.06		21.72	a	23.61	c	21.40		1.53	l	29.60	f
1927	2.76	j	-1.73	m	4.70	k	17.82	s	25.59	i	-----	z	36.97	a	34.48		30.46	b	22.33	m	21.21	p	-8.00	u	33.97	i
1928	3.00	v	-0.50	m	6.15	k	10.81	n	24.62	r	29.86	w	37.74	l	30.58		25.77		23.31	b	13.96	f	-3.08	e	19.15	h
1929	-4.25	k	-2.09	q	7.40	k	14.75	j	21.19	o	32.74	k	38.45	k	38.44	d	-----	z	21.41	d	2.17	a	8.90	b	17.73	h
1930	-15.58		12.07		7.39		24.07	a	27.43	a	31.52	a	37.10	b	41.57	a	29.30		25.27	a	2.87		-4.86	b	18.18
1931	4.81		3.04	d	8.72	b	17.82	b	26.62	b	36.17		38.29		35.42		27.24	a	21.71		6.33	c	-5.09	t	20.56	a
1932	-6.57	h	-3.94	m	-5.64	t	15.74	g	27.52	f	34.48	a	36.29		33.61		25.47		16.42	e	11.93		-8.16		21.44	e
1933	8.48		-5.59	a	3.55		14.57		25.26		33.40		37.90		36.03	a	28.38	a	23.18	c	16.00		14.81	d	19.66
1934	7.97	b	12.80	c	18.85	d	21.72	e	29.61		33.03		37.00		35.45		26.83		26.58		17.83	a	7.94		22.97
1935	3.62	j	1.71		9.39		19.53		26.68		31.83		36.68		33.81		28.03		20.43	a	5.30		-3.60	a	19.07	a
1936	-1.39		2.43	a	0.43	a	16.27		25.77		34.77		44.06		38.48		25.63		20.94		2.47		6.10		18.00
1937	-9.39		0.07		8.45		17.50		26.81		35.67		41.45		34.97		30.87		23.00		17.73		7.65		19.56
1938	-0.26		10.54		14.30	u	18.21	a	27.29		35.03		40.13		35.55		31.77		-----	z	2.32	b	4.42	e	20.50	b
1939	4.07	d	-----	z	-----	z	21.10		27.55		-----	z	37.19		32.93	a	29.07		23.43	a	8.70		12.19		21.80	c
1940	4.73	a	11.59	b	10.68		22.08	e	27.32		34.07		36.55		32.77		31.39	b	23.21	c	7.17	a	2.71		20.36
1941	-----	z	1.37	a	11.23		19.70		29.87		36.17		41.16		41.52		28.90		23.23		12.60		10.26		23.27	a
1942	-3.67	a	-6.11		4.77		21.23		26.71		-----	z	-----	z	-----	z	30.79	a	-----	z	-----	z	-----	z	12.29	f
1943	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	35.65		34.04	c	29.03		24.76	b	11.33		1.28	b	22.68	f
1944	-7.13		4.59	b	4.50	a	19.59	a	29.19		34.13		36.39		30.39		27.60		22.26		11.97		0.00		17.79
1945	4.40	a	7.43		10.68		13.93		28.65		33.07	a	37.16		37.61		29.00		22.26		13.57		4.84		20.22
1946	-3.20	a	5.82		13.06		22.17		26.97		32.90		39.29		34.74		27.10		24.06		14.13		10.28	b	20.61
1947	-4.60	a	4.00		11.58		17.73		27.94		35.90		36.52		34.77		29.31	a	27.35		11.50		6.68		19.89
1948	-5.77		4.82	a	1.77		19.17		25.29		36.93		39.61		34.90		27.97		20.10		9.53		-2.44	d	17.66
1949	-13.52	d	1.33	d	15.28	f	17.81	c	30.23	a	34.23		36.77		39.12	n	29.60		22.77	e	18.03		5.71		18.30	b
1950	1.86	i	9.19	l	11.08	e	18.47		21.29	c	32.04	c	36.55		37.58		31.90	a	25.14	b	15.57	b	13.61		24.32	b
1951	0.57	a	5.79		4.12	o	24.86	p	28.21	g	31.37		37.50	a	39.19		28.52	a	24.55		5.80		6.84		20.01	c
1952	4.39		-1.83		4.00	a	18.70		28.73	a	33.07		36.26		36.48		28.31	a	17.61		2.72	a	6.84		17.94
1953	18.94		4.68		9.48		14.57		25.68		32.17		38.32		35.55		27.27		23.27	a	19.10		5.39		21.20
1954	11.13		8.29		6.10		22.13		27.71		33.77		39.42		34.03		27.04	b	17.48		15.60		-4.68		19.83
1955	-3.74		-2.82		-1.27	a	17.77		25.60	a	33.13		39.71		37.77		29.53		20.68		9.97		7.83	a	17.85
1956	5.48		-5.83		4.84		19.13		29.87		32.31	a	37.68		34.58		26.50		22.26		1.17		4.10		17.67
1957	-9.06		9.54		8.87		19.93		29.13		34.66	a	37.45		35.68		28.37		24.55		18.08	q	-----	z	21.91	b
1958	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1959	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1960	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1961	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1962	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1963	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1964	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1965	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1966	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1967	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1968	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1969	7.58		3.89		0.29		23.21	a	28.42		35.50		36.52		35.19		29.87		20.81		9.03		5.35		19.64
1970	8.48		1.68		7.58		14.81	i	26.81		35.76	i	39.23		35.94		26.67		16.65		15.90		3.77		18.27	b
1971	7.87		1.64		9.39		14.05	j	26.06		32.13		37.03		40.00		26.57		23.10		9.07		1.61		19.50	a
1972	4.35		7.59		15.77		20.30		25.55		35.37		36.32		38.87		28.50		21.87		13.30		-2.42		20.45
1973	-1.94		2.43		7.94		15.13	g	25.45		33.77		38.16		37.19		-----	z	22.10		16.24	e	7.29		18.86	b
1974	4.32		1.96	c	13.85	e	18.96	c	25.15	k	32.47		38.00		34.39		22.30		18.58		9.33		-3.39		17.34	a
1975	-2.61		-1.48	a	7.55		14.37	c	22.94		30.83		41.00		31.35		23.33		19.33	a	2.83		5.58		16.25
1976	1.77		-1.93		-3.06		17.50	b	26.17	a	30.96	c	36.90		34.15	d	28.53		17.68	c	10.66	a	-6.26		16.09
1977	-6.55		-4.46		1.77		15.56	e	28.50	c	37.60		38.32		37.23		27.48	a	18.84		11.21	b	4.45		17.50
1978	8.06		5.04		10.55		22.10		26.23	a	32.67		37.82	c	31.97		27.59	a	15.97	a	9.77		-11.57	a	18.02
1979	-14.13		3.29		7.42		17.90		25.07	a	31.74	c	36.71		37.93	a	26.53		20.59	d	-0.47		-0.32		16.02
1980	-0.94		6.00		7.65		15.20		29.77	a	34.00		38.45		35.61		29.14	b	17.81		10.67		5.90		19.11
1981	-0.35		2.68		12.10		22.24	a	30.90		35.00		35.48		35.03		27.87		22.03		14.83		5.42		20.27
1982	-2.81		-4.93		11.42		12.50		24.28	b	33.24	a	39.77		36.54	c	28.41	h	22.00	b	3.71	b	0.67	a	16.04	a
1983	-0.74		2.19	a	11.90		14.76	a	24.08	e	31.04	b	37.10	b	41.52	d	27.40		22.42		14.04	b	-3.28	b	18.53
1984	-0.03	a	-6.11	a	10.90		-----	z	25.94		32.59	h	38.86	b	39.03	b	27.48	a	12.53	a	6.50	b	-10.00		14.51	b
1985	-11.26		-13.57		0.84		18.15	d	28.45		33.79	b	40.10		31.72	b	-----	z	-----	z	-----	z	-----	z	16.03	d
1986	-0.48		11.50		13.13		20.31	a	23.11	c	35.00	d	35.54	e	35.33	g	26.79	b	-----	z	7.40		-11.03	a	16.13	b
1987	-7.32		0.46		-----	z	15.22	g	30.63	a	33.46	b	37.07	a	30.83	b	23.15	c	11.54	c	10.53		-1.32		16.90	b
1988	-7.81		-6.04	a	1.23		17.12	d	24.73	a	33.52	a	32.19	d	27.63	a	21.37		18.79	c	9.77		-4.03		14.04
1989	-5.30	a	-3.93		11.23		17.57		26.03		31.63		36.55		33.13		23.83		20.23	a	7.70		-4.81		16.16
1990	2.90		-3.43		6.35		21.43	b	25.94		31.93		37.42		35.61		29.57		16.30	d	11.00	b	-14.42		16.72
1991	-9.53	a	2.85	a	6.52		16.50		26.45		32.53		34.71		36.14	b	27.04	c	15.86	b	6.27		-8.93	a	15.53
1992	-9.10		6.43	a	15.13		21.33		28.93	b	34.07		35.45	b	32.39	c	23.70		20.23		5.53		-3.13	a	17.58
1993	-5.39		-5.21		9.94		19.21	a	28.13		33.21	a	33.00	a	32.58		24.52	a	19.93	a	-2.72	a	0.58		15.65
1994	3.40	a	-4.30	a	7.19		17.83		27.29	c	31.75	b	34.90	a	31.81		23.33		19.70	a	-0.47		2.55		16.25
1995	-4.40	a	9.68		9.30	a	18.20		24.07	b	31.39	b	34.81		30.32		23.13		14.55	b	17.60		1.13		17.48
1996	-1.74		-0.79		8.23		17.13		26.48	b	32.43		38.58		32.52		25.66	a	17.32		12.41	a	8.55	b	18.07
1997	0.00		-4.39		7.19		14.70		27.45		36.07	b	37.37	a	36.70	a	-----	z	18.53	a	11.10		-7.23		16.14	a
1998	6.48		3.29		8.55		18.10		27.76	b	32.13		39.26		35.48		34.69	a	22.84		18.72	a	1.21	b	20.71
1999	7.31	b	4.04		6.81		18.29	b	26.33	a	33.62	a	35.58		37.40	a	24.66	a	18.04	d	15.60		2.26		19.16
2000	7.87		7.45		9.81		22.17	a	29.79	c	33.76	a	37.71		35.34	b	26.21	b	22.87		0.78	g	-3.52	d	20.86	a
2001	-6.97		2.50	d	11.44	d	18.64	h	27.77		35.33		40.26		35.97		28.79	a	19.55	b	16.00	h	2.84	f	21.63	c
2002	1.84	f	-7.27	f	8.52	d	20.41	h	27.47	a	36.33		41.19		33.14	b	28.41	a	17.11	d	9.65	g	3.33	g	27.45	e
2003	11.19	d	-----	z	-----	z	21.87	o	29.42		33.14	a	39.48		39.30	a	26.58	d	21.50	i	5.77	d	5.13	h	26.41	e
2004	-2.00	g	4.00	e	14.33	a	21.70	c	28.63	d	35.27		38.50	a	35.42		29.42	d	24.69	e	8.52	c	8.88	g	24.05	b
2005	7.96	f	-6.64	f	14.26	h	18.46	q	29.81	d	34.67		38.71		36.41	b	28.26	c	23.13	h	10.64	h	2.96	h	33.57	g
2006	7.24	f	0.10	g	5.35	h	22.70	g	28.45	b	34.80		41.16		32.90	a	27.92	e	19.97	b	7.44	l	-1.61	h	30.87	f
2007	-10.32	c	8.48	a	14.26	l	22.90	t	26.69	e	33.50	d	44.12	e	37.57	c	30.22	c	24.40	a	12.43	i	4.04	e	22.08	c
2008	-5.40	a	4.33	b	3.23	i	15.00	x	26.00	c	31.90	a	36.87	a	33.14	b	25.81	c	20.56	d	-----	z	-1.05	k	21.65	d
2009	1.00	b	1.19	b	5.85	e	21.67	o	25.73	e	35.07	a	36.57	a	34.13	a	28.52	a	18.90		10.86	a	3.00	i	19.78	b
2010	2.30	a	1.39		9.14	i	13.80	o	24.08	g	34.43		35.52		34.60	a	25.53		23.35		12.79	p	5.59	i	22.45	e
2011	4.06		-2.07		12.71	c	19.67	r	27.14	j	31.24	a	33.81		34.24	b	27.03		23.87	a	5.77		-2.42		16.82	b
2012	2.32		2.48		16.32		24.07		28.00		31.57		39.87		33.26		26.03		18.19		16.23		6.00		20.36
2013	-7.35		2.82		6.97		15.23		27.23		31.33		38.06		34.65		34.80		19.60	a	11.97		-2.52		17.73
2014	0.03		5.11		14.81		20.33		26.10		32.30		37.29		38.19		30.17		22.48		13.90		9.19		20.83
2015	3.13		9.29		11.00		22.33		32.35		37.30		37.16		35.77		28.47		27.74		7.80		3.03		21.28
2016	7.16		11.59		13.61		23.63		28.97		34.57		36.23		32.00		30.17		27.90		18.30		-5.58		21.55
2017	-7.19		12.61		20.81		20.97		26.65		34.40		39.55		34.71		29.60		19.45		14.93	a	2.65		20.76
2018	5.39		6.00		10.58		22.53		30.87		34.90		37.81		33.84		25.20		22.58		8.67		2.00		20.03
2019	-2.00		2.43		4.32		25.23		27.58		33.10		38.94		35.77		30.52	a	12.74		11.27		3.81		18.64
2020	8.68		-4.34		14.60	a	19.20		30.00		34.17		36.19		36.42		26.47		17.55		8.60		-4.23		18.61
2021	-0.94		4.50		8.06		16.37		29.65		35.67		41.13		37.10		25.40		24.29		17.97		12.06		20.94
2022	-4.39		-3.25		9.84		16.50		27.32		34.13		38.55		39.34	b	29.47		20.71		1.27		1.71		17.60
2023	2.61		-5.07		3.55		15.93		30.93	a	35.77		37.58		40.05	j	30.87		22.65		11.27		3.42		17.23	a
2024	3.81		10.24		11.26		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	8.44	i
Period of Record Statistics
MEAN	-0.16		2.15		8.74		18.87		27.24		33.64		37.81		35.50		28.04		21.05		10.47		1.80		18.69
S.D.	6.52		5.51		4.81		2.99		2.10		1.83		2.30		3.22		2.75		3.33		5.50		6.67		1.89
SKEW	-0.03		-0.22		-0.13		0.05		-0.18		0.42		1.05		0.89		0.11		-0.32		-0.23		-0.04		-0.17
MAX	18.94		12.80		20.81		25.23		32.35		39.67		47.83		47.77		35.48		28.74		21.40		19.40		22.97
MIN	-15.58		-13.57		-3.06		12.50		21.29		29.20		32.19		27.63		21.37		11.54		-2.72		-14.42		14.04
YRS	87		88		86		75		85		90		101		100		97		95		89		85		52