WEST YELLOWSTONE, MT

Maximum of Maximum Temperature (Degrees Fahrenheit)

(248857)

File last updated on May 5, 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
1924	36.00	a	54.00		45.00		59.00		70.00		82.00		90.00		88.00		86.00	d	62.00	c	55.00	c	39.00	b	90.00	m
1925	40.00	c	41.00	e	55.00	f	63.00	l	72.00	f	83.00	p	91.00		81.00		81.00	b	65.00	a	48.00	b	49.00	b	-----	z
1926	32.00	e	42.00	d	52.00	b	71.00	f	76.00		89.00	b	87.00		86.00		70.00	b	64.00		51.00		44.00	g	-----	z
1927	44.00	e	36.00	i	48.00	f	63.00	k	76.00	c	89.00		92.00		82.00	a	81.00		71.00	a	49.00		35.00	c	-----	z
1928	38.00	g	42.00	l	57.00		63.00	d	77.00		79.00	a	87.00	b	92.00		84.00	b	67.00	c	50.00	a	39.00		-----	z
1929	31.00	k	36.00	c	51.00	d	54.00	c	78.00	d	85.00		94.00		90.00		75.00	g	62.00	b	42.00		42.00		-----	z
1930	30.00		40.00	f	41.00	f	64.00	d	-----	z	79.00		91.00		83.00		80.00		63.00		61.00		35.00	e	-----	z
1931	47.00	c	43.00	c	49.00	j	65.00		75.00	o	-----	z	95.00	b	89.00		85.00	n	69.00	b	61.00		42.00		-----	z
1932	30.00		52.00		45.00	a	65.00		81.00		84.00	c	85.00	e	89.00		81.00		72.00	a	51.00		38.00		89.00	j
1933	42.00		37.00		50.00		59.00		77.00		85.00	b	96.00	b	93.00		84.00		76.00	b	51.00	b	41.00		96.00	h
1934	41.00		52.00		54.00		73.00		84.00		81.00		94.00		91.00		82.00		83.00		58.00	a	39.00		94.00	a
1935	46.00		49.00		55.00		62.00		71.00		85.00		96.00		93.00		81.00		76.00		41.00		38.00		96.00
1936	40.00		47.00		51.00	h	75.00		88.00		93.00		97.00		90.00		82.00	a	73.00		51.00	b	41.00	c	97.00	n
1937	26.00	g	42.00	g	55.00	f	64.00	j	78.00	b	89.00	a	91.00		89.00	a	83.00	a	70.00	c	54.00	d	40.00	d	-----	z
1938	40.00	g	55.00	f	51.00	f	69.00	a	76.00		82.00		86.00		86.00		83.00		70.00		37.00		37.00		86.00	t
1939	33.00		32.00		61.00		76.00		81.00		87.00		95.00		90.00		83.00		65.00	a	60.00		50.00		95.00	a
1940	40.00		40.00		57.00		62.00	a	79.00		91.00		92.00		96.00		86.00		70.00		45.00		42.00		96.00	a
1941	43.00		47.00		56.00		64.00		78.00	e	86.00		87.00		90.00		73.00	a	65.00	a	52.00		47.00		90.00	g
1942	41.00		38.00		54.00		65.00		80.00		81.00		93.00		92.00		86.00		74.00		40.00		39.00		93.00
1943	33.00		45.00		55.00		64.00		78.00		81.00	a	91.00		88.00		84.00		76.00		50.00	f	42.00		91.00	g
1944	39.00		45.00		50.00		61.00		76.00		85.00		88.00		87.00		83.00		71.00		44.00		41.00		88.00
1945	39.00		43.00		55.00		66.00		70.00		83.00		91.00		88.00		83.00		71.00		49.00		41.00		91.00
1946	38.00		52.00		60.00		72.00		71.00		82.00		92.00		91.00		88.00		58.00		48.00	b	54.00		92.00	b
1947	39.00		43.00	a	57.00	c	60.00	l	-----	z	85.00	l	89.00		85.00	a	84.00		68.00		61.00		36.00		-----	z
1948	40.00		44.00		-----	z	64.00	i	76.00	a	81.00	a	87.00	b	88.00		83.00		70.00		42.00		32.00		-----	z
1949	27.00		47.00		50.00	a	66.00		77.00		80.00		89.00		89.00		79.00	a	63.00		56.00	b	38.00	f	89.00	j
1950	38.00	b	50.00		51.00		58.00		71.00		84.00		81.00		86.00		91.00		73.00		51.00		40.00		91.00	b
1951	34.00		48.00		50.00		58.00		76.00	a	78.00		89.00		86.00		77.00	a	71.00		47.00	a	32.00		89.00	c
1952	33.00		43.00		45.00		69.00		71.00		83.00	a	87.00		86.00		82.00		75.00		51.00	a	35.00	c	87.00	e
1953	44.00		39.00		58.00	b	63.00		69.00		81.00		91.00		87.00	a	85.00	a	74.00	a	55.00		35.00		91.00	e
1954	40.00		46.00		46.00	c	60.00		83.00		87.00		92.00		90.00		83.00		70.00		57.00		38.00	a	92.00	d
1955	33.00		41.00		52.00		60.00		75.00		86.00		93.00		87.00		87.00		72.00	b	46.00		41.00	b	93.00	d
1956	40.00		45.00		59.00		65.00		80.00		84.00		90.00		86.00		85.00		75.00		50.00	a	39.00		90.00	a
1957	34.00		49.00		51.00		67.00		72.00		83.00	a	89.00		88.00		80.00		79.00		51.00		37.00		89.00	a
1958	37.00		56.00		50.00		57.00		83.00		85.00		84.00		90.00		85.00		75.00		55.00		41.00		90.00
1959	39.00		43.00		49.00		60.00		76.00		88.00		93.00		87.00		84.00		65.00		56.00		43.00		93.00
1960	41.00		35.00		59.00		63.00		80.00		81.00		95.00		88.00		81.00		71.00		52.00		38.00		95.00
1961	37.00		41.00		54.00		59.00		80.00		86.00		90.00		96.00		77.00		69.00		49.00		35.00		96.00
1962	42.00		46.00		49.00		70.00		65.00		86.00		84.00		86.00		80.00		72.00		64.00		42.00	a	86.00	a
1963	37.00		52.00		54.00		63.00		72.00		78.00		88.00		92.00		83.00		74.00		49.00		35.00		92.00
1964	34.00	a	34.00		58.00		62.00		79.00	a	85.00		90.00		87.00		75.00		77.00	a	54.00		39.00		90.00	c
1965	36.00		42.00		58.00		58.00		72.00		80.00		85.00		89.00		72.00		70.00		61.00		42.00		89.00
1966	36.00		43.00		61.00		58.00		81.00		87.00		92.00		87.00		82.00		64.00		49.00		36.00		92.00
1967	35.00		41.00		46.00		50.00		78.00		82.00		89.00		88.00		87.00		62.00		53.00	a	32.00		89.00	a
1968	38.00		47.00		54.00		66.00		73.00		85.00		89.00		88.00		81.00		64.00		41.00		41.00		89.00
1969	40.00		40.00		52.00		65.00		80.00		89.00		88.00		93.00	a	85.00		61.00		53.00		40.00		93.00	a
1970	39.00		45.00		46.00		55.00		73.00		91.00		88.00		89.00		76.00		74.00		47.00		35.00		91.00
1971	39.00		41.00		48.00		58.00		79.00		84.00		89.00		90.00		77.00		73.00		54.00		35.00		90.00
1972	34.00		46.00		59.00		61.00		80.00		81.00		88.00		89.00		75.00		68.00		41.00		35.00		89.00
1973	40.00		49.00		48.00		54.00	c	75.00		83.00		90.00		86.00		79.00		68.00		51.00		38.00		90.00	c
1974	45.00		31.00	s	45.00	c	65.00		73.00		89.00		92.00		84.00		79.00		71.00		44.00		36.00		92.00	v
1975	40.00		35.00		44.00		46.00		69.00		81.00		88.00		85.00		80.00		73.00		53.00		43.00		88.00
1976	42.00		41.00		48.00		59.00		73.00		85.00		89.00		84.00		84.00		71.00	a	46.00	q	34.00		89.00	r
1977	35.00		45.00		52.00	d	71.00	a	76.00		87.00		86.00		85.00		83.00		66.00	b	50.00		37.00		87.00	g
1978	35.00		42.00	a	59.00		58.00		75.00		83.00	a	87.00		86.00		84.00		70.00	a	55.00	k	31.00	m	-----	z
1979	29.00	k	39.00	g	-----	z	56.00	x	79.00	a	88.00		88.00		90.00		85.00		73.00		44.00	a	40.00		-----	z
1980	38.00		-----	z	44.00	p	43.00	x	75.00		79.00		88.00		81.00		80.00		73.00		60.00		44.00		-----	z
1981	42.00		49.00		50.00	a	68.00		73.00		86.00		88.00		91.00		85.00		63.00		59.00		43.00		91.00	a
1982	33.00		43.00	a	49.00		59.00		75.00	a	84.00		87.00		89.00		83.00	a	67.00		43.00		35.00		89.00	c
1983	34.00		43.00		46.00		54.00		80.00		80.00		88.00		92.00	a	83.00	a	65.00		53.00		33.00	c	92.00	e
1984	38.00		37.00		42.00	a	61.00		80.00	c	86.00		86.00		88.00		82.00	b	70.00	a	43.00	a	34.00		88.00	h
1985	35.00		38.00		50.00	a	66.00		76.00		84.00		89.00		86.00	a	71.00	b	62.00	a	36.00	l	34.00		89.00	q
1986	47.00		51.00		59.00	a	64.00	a	84.00		84.00		84.00		87.00	a	-----	z	62.00		51.00	b	37.00		-----	z
1987	41.00		48.00		54.00		75.00		79.00		82.00	g	84.00	a	81.00	c	84.00		75.00		51.00		41.00		84.00	k
1988	40.00		52.00		49.00	a	68.00	d	80.00		91.00		90.00		89.00		82.00	b	74.00		57.00	a	33.00		91.00	h
1989	37.00	a	44.00		53.00		53.00	i	69.00		84.00	d	91.00		84.00	a	76.00		64.00	h	49.00	g	38.00	c	-----	z
1990	40.00	a	43.00	a	53.00	a	67.00		70.00	a	89.00		89.00		90.00		86.00		70.00	a	50.00	c	43.00	e	90.00	m
1991	32.00	a	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	88.00		84.00		74.00	f	42.00	b	33.00		-----	z
1992	42.00		47.00		55.00		75.00	a	80.00		85.00		87.00		90.00	l	77.00		78.00		39.00		33.00	d	90.00	q
1993	30.00	l	36.00	n	53.00		55.00		77.00		83.00	b	83.00		84.00		77.00		73.00	a	43.00	a	39.00	i	-----	z
1994	36.00	a	42.00	a	56.00	a	71.00		81.00		85.00	o	93.00		92.00	a	83.00		63.00		42.00	a	37.00	a	93.00	u
1995	36.00		46.00		46.00	a	55.00		74.00		80.00	a	86.00		87.00	h	-----	z	69.00		46.00		43.00	b	-----	z
1996	35.00	d	43.00	a	48.00	b	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1997	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1998	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1999	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
2000	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	91.00	v	87.00	u	85.00	r	60.00	x	42.00	s	-----	z	-----	z
2001	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	55.00	w	31.00	s	-----	z
2002	34.00	o	41.00	k	46.00	l	53.00	q	77.00	g	88.00	i	99.00	g	80.00	k	84.00	e	61.00	e	41.00	q	38.00	o	-----	z
2003	40.00	m	40.00	d	54.00	f	62.00	e	66.00	k	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
2004	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
2005	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
2006	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
2007	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
2008	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
2009	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
2010	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
2011	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
2012	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
2013	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	37.96		44.06		52.13		62.89		76.40		84.30		89.34		88.04		81.61		69.56		50.21		38.74		91.24
S.D.	4.14		5.10		4.82		6.19		4.38		3.46		3.32		3.19		4.06		5.10		6.28		4.37		2.56
SKEW	-0.08		0.00		0.01		0.00		-0.11		0.29		0.10		-0.00		-0.80		-0.07		0.04		0.88		0.33
MAX	47.00		56.00		61.00		76.00		88.00		93.00		97.00		96.00		91.00		83.00		64.00		54.00		96.00
MIN	27.00		32.00		42.00		46.00		65.00		78.00		81.00		81.00		70.00		58.00		37.00		32.00		86.00
YRS	67		64		62		63		67		66		71		70		69		71		67		68		33