YELLOWTAIL DAM, MT

Maximum of Maximum Temperature (Degrees Fahrenheit)

(249240)

File last updated on April 23, 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
1948	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	85.00	a	103.00		101.00		90.00	a	65.00		59.00		-----	z
1949	57.00		59.00		60.00		86.00		90.00		93.00		104.00		107.00	a	90.00		80.00		73.00		60.00		107.00	a
1950	62.00		68.00		68.00		75.00	a	88.00		88.00		94.00		97.00		104.00		-----	z	-----	z	-----	z	-----	z
1951	-----	z	70.00	i	61.00	i	75.00		89.00		86.00		100.00		98.00		88.00	c	82.00		-----	z	-----	z	-----	z
1952	59.00		64.00		64.00		87.00		83.00		96.00		101.00		100.00	i	-----	z	-----	z	-----	z	-----	z	-----	z
1953	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1954	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1955	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1956	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1957	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
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	67.00		-----	z
1963	58.00	a	70.00	a	78.00		81.00		85.00		94.00		103.00		100.00		95.00	a	94.00		69.00		64.00		103.00	c
1964	67.00		57.00		72.00		78.00		93.00		97.00		103.00		104.00		90.00		86.00		69.00		62.00		104.00
1965	60.00		70.00		60.00		79.00		85.00		86.00		99.00		105.00		86.00		87.00		76.00		70.00		105.00
1966	64.00		55.00		78.00	a	73.00		92.00		99.00		106.00		102.00		97.00		81.00		67.00		61.00		106.00	a
1967	61.00		65.00		75.00		72.00		87.00		89.00		95.00		101.00		97.00		82.00		67.00		58.00		101.00
1968	67.00		65.00		76.00		83.00		83.00		93.00		98.00		98.00		92.00		82.00		68.00	f	60.00		98.00	f
1969	54.00	a	53.00		72.00		83.00		95.00		94.00	a	97.00		104.00		98.00		73.00		72.00		60.00		104.00	b
1970	57.00		59.00		62.00		75.00		91.00		99.00		99.00		103.00		98.00		87.00	a	62.00		61.00		103.00	a
1971	61.00		58.00		74.00		79.00		86.00		101.00	a	101.00		104.00		95.00		80.00		68.00		56.00		104.00	a
1972	54.00		66.00		75.00		74.00		90.00		94.00		98.00		100.00		88.00		81.00		60.00		59.00		100.00
1973	62.00		61.00		62.00		73.00	a	90.00	a	96.00		103.00		100.00		86.00		85.00		73.00	a	70.00		103.00	c
1974	68.00	b	66.00		70.00		87.00		85.00		100.00		99.00		97.00		88.00		84.00	a	68.00		57.00	b	100.00	e
1975	54.00		54.00	a	58.00		73.00	b	87.00		91.00	c	103.00	b	97.00		90.00		86.00		74.00	a	67.00		103.00	i
1976	62.00	a	62.00		69.00		83.00	b	86.00		90.00	a	103.00		99.00		98.00		86.00		70.00		64.00		103.00	d
1977	56.00		65.00	a	70.00		85.00		86.00		94.00		106.00		96.00		92.00		80.00		66.00		58.00		106.00	a
1978	52.00		54.00		79.00		75.00		91.00		93.00		100.00		98.00		101.00		80.00		74.00		49.00	a	101.00	a
1979	45.00		61.00		65.00	a	83.00		89.00		101.00		98.00	a	99.00		100.00		86.00		67.00		68.00		101.00	b
1980	57.00		66.00		63.00		89.00		93.00		93.00		104.00		96.00		99.00		88.00	a	72.00		72.00		104.00	a
1981	62.00		69.00		68.00		85.00		89.00		91.00		99.00		97.00		97.00		85.00		73.00		65.00		99.00
1982	63.00		72.00		68.00	a	79.00		85.00		88.00	a	98.00		99.00	d	95.00		77.00		63.00	a	60.00		99.00	g
1983	61.00		67.00		73.00		81.00	a	87.00		94.00		105.00		103.00		103.00		80.00		74.00		52.00		105.00	a
1984	62.00		60.00	a	63.00	d	83.00	c	97.00	a	102.00		100.00	a	103.00		97.00		85.00	c	68.00	a	59.00	c	103.00	q
1985	56.00	a	62.00	a	72.00	b	85.00	a	93.00		100.00	a	103.00	c	104.00		91.00		79.00	a	73.00	a	62.00		104.00	k
1986	66.00		70.00		80.00		85.00		90.00		99.00		98.00		101.00	a	83.00		76.00	a	65.00		57.00	a	101.00	c
1987	64.00	a	67.00		76.00		88.00		91.00		97.00		99.00	a	99.00		98.00		87.00	a	74.00		69.00		99.00	c
1988	60.00	a	69.00	a	73.00	a	83.00	a	94.00		104.00	a	105.00		103.00		97.00		86.00	a	75.00	b	64.00	a	105.00	i
1989	63.00		57.00	c	68.00	a	85.00		87.00		102.00		107.00	a	104.00		95.00		91.00		72.00	a	66.00		107.00	f
1990	63.00		61.00	c	70.00		82.00		87.00	a	101.00	a	102.00	a	104.00	a	100.00		87.00	a	75.00		68.00		104.00	h
1991	57.00	a	65.00	b	72.00	a	81.00	a	82.00		94.00	d	106.00	c	104.00		93.00	d	88.00	a	65.00		59.00		106.00	q
1992	66.00	b	72.00	b	72.00	a	87.00	a	95.00		92.00	a	93.00	a	99.00	a	95.00		93.00		66.00	a	52.00		99.00	j
1993	58.00	c	55.00		80.00	a	73.00		89.00	a	94.00		96.00		96.00		89.00	a	88.00		65.00	a	66.00	a	96.00	h
1994	62.00	a	63.00	b	78.00	b	85.00		89.00		99.00	a	100.00	b	102.00	c	98.00	a	76.00	d	66.00	a	64.00	f	102.00	w
1995	60.00	a	72.00	a	72.00	a	76.00	a	82.00	a	95.00		107.00	a	107.00	b	98.00		87.00	a	69.00	e	69.00	a	107.00	o
1996	64.00	d	71.00		67.00	a	85.00		78.00		97.00	d	102.00	a	104.00	b	99.00	b	88.00	b	61.00	a	61.00	b	104.00	s
1997	67.00	c	62.00	a	77.00		78.00	d	92.00	c	92.00	a	98.00	b	98.00	f	92.00	d	91.00	g	72.00		63.00	d	-----	z
1998	62.00	a	60.00	d	67.00	c	82.00	f	87.00	d	85.00	e	106.00		99.00	g	101.00	g	81.00	b	67.00	b	64.00	c	-----	z
1999	58.00	e	68.00	f	77.00	j	78.00	l	88.00	j	101.00		105.00	e	99.00	e	93.00	k	79.00	i	78.00	c	58.00	d	-----	z
2000	57.00	k	61.00	g	70.00	g	82.00	k	83.00	i	96.00	a	101.00	d	100.00	i	98.00	i	78.00	d	62.00	d	55.00	g	-----	z
2001	60.00	d	51.00	g	63.00	g	86.00	d	98.00	h	98.00	c	103.00	d	106.00	d	97.00	c	86.00	d	73.00	g	54.00	j	-----	z
2002	64.00	e	60.00	a	61.00	c	82.00	e	92.00	d	102.00	f	110.00	g	99.00	e	98.00	f	79.00	h	66.00	b	62.00	b	-----	z
2003	61.00	f	57.00	d	76.00	b	82.00	a	94.00		97.00		106.00	a	105.00	a	95.00	c	86.00	c	69.00	b	60.00	a	106.00	x
2004	56.00		64.00		82.00		82.00	f	87.00	a	92.00	e	102.00	c	98.00	a	97.00	d	85.00	e	71.00	a	66.00		-----	z
2005	68.00		68.00		72.00		81.00		84.00		102.00		109.00		99.00		97.00		89.00		71.00		65.00		109.00
2006	65.00		68.00		71.00		78.00		90.00		99.00		105.00		101.00		91.00		79.00		75.00		63.00		105.00
2007	57.00		62.00	a	76.00	b	87.00		88.00	a	99.00		106.00		102.00		101.00		81.00		70.00		62.00		106.00	d
2008	60.00		58.00		66.00		83.00		87.00		89.00		99.00		105.00		86.00		83.00		71.00		61.00		105.00
2009	61.00		65.00		71.00		83.00		96.00		100.00		100.00		99.00		95.00		77.00	a	74.00	a	57.00	b	100.00	d
2010	57.00		50.00		70.00	a	74.00		82.00		98.00		101.00		102.00		92.00		89.00		74.00	a	56.00	b	102.00	d
2011	56.00	a	63.00	a	66.00	b	75.00		74.00		102.00		102.00		98.00		92.00		93.00		67.00		59.00		102.00	d
2012	64.00		55.00	a	82.00		89.00		90.00	a	106.00		105.00		103.00		94.00		79.00		74.00	a	68.00	d	106.00	g
2013	55.00		52.00		70.00		78.00		95.00		96.00		98.00		98.00		94.00	e	75.00		65.00		62.00	f	98.00	k
2014	59.00		58.00		68.00	a	76.00		90.00		86.00		103.00		94.00		93.00		80.00		70.00		67.00		103.00	a
2015	71.00		70.00		81.00		85.00	c	79.00	f	99.00		99.00	e	104.00		98.00		87.00	c	65.00		59.00	b	104.00	s
2016	57.00	a	69.00		75.00	a	87.00	a	88.00	e	102.00		102.00		97.00		97.00		84.00		71.00		51.00	a	102.00	i
2017	58.00	e	62.00	o	75.00		76.00		90.00		94.00	a	103.00		97.00		95.00		77.00		70.00		61.00	e	-----	z
2018	-----	z	-----	z	69.00	a	83.00		86.00		94.00		99.00		102.00		89.00		74.00		64.00		58.00		-----	z
2019	58.00	a	58.00		68.00		81.00	a	84.00	f	91.00		98.00		96.00		98.00		75.00		67.00		61.00		98.00	h
2020	59.00		63.00		69.00	a	80.00		86.00		101.00	a	100.00		102.00		102.00	a	85.00	b	68.00	a	68.00	d	102.00	j
2021	62.00	a	61.00	c	70.00		85.00		87.00	f	107.00	b	104.00	d	102.00	c	93.00	a	86.00	c	71.00		70.00		107.00	w
2022	59.00	b	63.00		77.00		61.00	q	81.00	u	94.00	i	106.00		102.00		104.00		78.00	q	63.00		58.00	e	-----	z
2023	48.00	b	59.00		64.00		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
2024	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	60.08		62.63		70.90		81.02		88.37		95.84		101.23		100.77		94.88		83.42		69.18		61.83		103.25
S.D.	4.75		5.58		5.86		4.79		4.39		5.11		4.01		3.14		4.77		4.99		4.19		5.07		2.47
SKEW	-0.44		-0.16		-0.11		-0.28		-0.56		-0.16		-1.01		-0.00		-0.31		-0.10		-0.14		-0.18		0.14
MAX	71.00		72.00		82.00		89.00		97.00		107.00		109.00		107.00		104.00		94.00		78.00		72.00		109.00
MIN	45.00		50.00		58.00		72.00		74.00		85.00		85.00		94.00		83.00		73.00		60.00		49.00		99.00
YRS	61		59		61		59		57		62		64		61		60		59		60		59		28