BULLFROG BASIN, UT

Minimum of Minimum Temperature (Degrees Fahrenheit)

(421020)

File last updated on August 10, 2026
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
1967	-----	z	-----	z	25.00	a	33.00		34.00		48.00		63.00		61.00		50.00		34.00		28.00		8.00		-----	z
1968	5.00		23.00		29.00		30.00		37.00		50.00		57.00		50.00		48.00		36.00		22.00		12.00		5.00
1969	20.00		22.00		26.00		25.00		45.00		44.00		54.00		59.00		45.00		38.00		26.00		19.00		19.00
1970	7.00		18.00		24.00		31.00	a	37.00		51.00		59.00		65.00		44.00		28.00		24.00		19.00		7.00	a
1971	3.00		15.00		15.00	b	31.00	c	43.00	c	54.00		62.00		58.00		44.00		25.00		26.00		12.00		3.00	h
1972	11.00		15.00		31.00		28.00	a	40.00		48.00		63.00		46.00		49.00		30.00		24.00		14.00		11.00	a
1973	9.00		19.00		31.00		31.00		40.00		51.00		62.00		59.00		45.00		34.00		21.00		18.00		9.00
1974	4.00		17.00		18.00	a	32.00		44.00	a	52.00		60.00		58.00		46.00		38.00		24.00		15.00	a	4.00	c
1975	12.00	a	19.00	c	21.00		21.00		33.00	a	48.00		59.00	a	49.00		44.00		31.00		20.00		18.00		12.00	f
1976	14.00		25.00		24.00	e	36.00	a	45.00		49.00	a	65.00		61.00		51.00		36.00		13.00		17.00		13.00	g
1977	11.00		22.00		24.00		32.00		40.00		60.00		64.00		57.00		52.00		42.00		28.00		21.00		11.00
1978	24.00	d	23.00		33.00		37.00		38.00		44.00		61.00		60.00		45.00		41.00		29.00		5.00	a	5.00	e
1979	4.00		6.00	a	28.00		33.00		35.00	e	45.00		62.00		58.00		56.00		33.00	d	19.00		20.00		4.00	j
1980	25.00		23.00	a	26.00	a	32.00	a	40.00	b	42.00	b	59.00		57.00		49.00	b	32.00		23.00	a	26.00		23.00	j
1981	23.00		22.00		32.00		34.00	b	38.00		51.00		64.00		61.00		44.00		35.00		25.00		21.00		21.00	b
1982	8.00	a	12.00	a	27.00	d	34.00	b	43.00	b	51.00	d	54.00		62.00	b	49.00	c	33.00	c	28.00	c	18.00	c	-----	z
1983	19.00	e	25.00	b	32.00	b	31.00	c	40.00	b	52.00	a	63.00		64.00	a	45.00	a	43.00	c	27.00	c	17.00	f	-----	z
1984	12.00		21.00	b	22.00	d	31.00	b	40.00		45.00		65.00	b	65.00	g	48.00	i	32.00	d	22.00	d	24.00	e	-----	z
1985	15.00	e	12.00	d	22.00	b	39.00	c	45.00	d	46.00	b	64.00	c	63.00	c	46.00	c	39.00	e	22.00	e	20.00	e	-----	z
1986	26.00	h	17.00	e	29.00	f	36.00	d	36.00	e	54.00	f	62.00	b	55.00	b	47.00	k	35.00	j	29.00	l	22.00	f	-----	z
1987	16.00	h	27.00	a	25.00	c	26.00	d	46.00	g	51.00	b	62.00	f	60.00	c	50.00	a	45.00	e	27.00	h	20.00	c	-----	z
1988	19.00		24.00		25.00		33.00	c	41.00		55.00	b	68.00	d	62.00	e	47.00	j	41.00	a	24.00	h	13.00	i	-----	z
1989	13.00	d	4.00	c	23.00	f	40.00	l	45.00	m	51.00	h	63.00	c	60.00	a	49.00	d	32.00	b	24.00	h	17.00	h	-----	z
1990	18.00	j	20.00	c	24.00	g	38.00	i	40.00	g	-----	z	-----	z	-----	z	-----	z	36.00		27.00	c	-0.00	e	-----	z
1991	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1992	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1993	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1994	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1995	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1996	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1997	-----	z	-----	z	25.00	c	31.00	a	37.00	e	58.00	c	57.00	a	62.00	c	53.00	d	32.00	c	25.00	a	20.00	a	-----	z
1998	23.00	d	21.00	b	27.00	e	34.00	d	45.00	c	50.00	g	66.00	d	63.00	b	55.00	c	40.00	a	30.00		10.00		-----	z
1999	24.00	a	21.00	a	32.00	b	31.00	b	37.00		48.00	a	65.00	b	59.00	a	44.00	a	38.00	a	25.00	a	19.00	a	19.00	n
2000	18.00	b	25.00		30.00	c	37.00		42.00		61.00		65.00		67.00		43.00		39.00	a	25.00	a	21.00		18.00	g
2001	22.00	a	23.00	b	31.00		33.00	a	39.00		46.00	a	70.00	u	62.00	a	49.00		40.00	b	24.00		16.00	a	-----	z
2002	15.00	b	18.00	a	20.00		38.00		44.00	a	56.00		67.00		60.00		49.00	a	37.00	a	26.00		23.00		15.00	f
2003	25.00	b	18.00		31.00	a	32.00	e	36.00	a	53.00	b	63.00	a	64.00	g	49.00	b	41.00		22.00		18.00	a	18.00	v
2004	17.00	c	18.00	c	29.00	a	34.00	a	42.00	b	55.00		60.00		59.00		47.00	b	35.00	d	22.00	a	16.00		16.00	q
2005	24.00	a	25.00	a	26.00	b	32.00		43.00	b	48.00	b	62.00	a	55.00	f	52.00		40.00	a	17.00		13.00	a	13.00	q
2006	17.00	a	21.00	d	25.00	c	35.00	e	47.00		55.00	a	66.00		61.00	c	44.00	a	38.00	d	17.00	a	19.00	a	17.00	x
2007	14.00	a	20.00	c	21.00	e	37.00	c	41.00	c	53.00		65.00		63.00	b	45.00	c	37.00	b	21.00	b	17.00	c	-----	z
2008	13.00	c	20.00	d	19.00	h	34.00	c	35.00	b	48.00	b	64.00	e	64.00	c	53.00	c	34.00	c	28.00	a	15.00	g	-----	z
2009	17.00	b	23.00	c	20.00	d	32.00	a	54.00	f	54.00	a	67.00		60.00	c	49.00	b	32.00		24.00	a	16.00	a	16.00	x
2010	21.00		24.00		31.00	c	30.00	b	37.00	b	50.00	a	56.00	c	59.00	a	53.00		35.00	h	18.00	a	12.00		12.00	u
2011	10.00	b	10.00	c	26.00		29.00	a	36.00		48.00	e	62.00		66.00	c	55.00	a	35.00		27.00	a	17.00	a	10.00	q
2012	18.00	a	22.00		21.00		35.00		48.00		57.00		68.00	d	65.00		54.00	a	34.00	b	26.00		18.00		18.00	h
2013	9.00		22.00		21.00	a	32.00	c	39.00		54.00		67.00		64.00		45.00		35.00		27.00		9.00		9.00	d
2014	18.00		23.00		28.00		31.00		40.00		55.00	b	67.00		57.00		52.00		38.00	a	22.00	a	19.00		18.00	d
2015	12.00		28.00		28.00	a	31.00		41.00		54.00		58.00		63.00		54.00		42.00		22.00		19.00	a	12.00	b
2016	19.00		14.00	a	32.00		34.00		45.00		58.00		63.00		59.00		47.00		40.00		25.00		16.00		14.00	a
2017	19.00		24.00	a	24.00		34.00		41.00		52.00		66.00		59.00		43.00		34.00		24.00		18.00		18.00	a
2018	18.00	a	19.00		22.00	a	35.00	b	45.00	a	64.00		65.00		63.00		49.00		39.00		23.00		16.00		16.00	e
2019	11.00		17.00		30.00		35.00		41.00		49.00		62.00		63.00		51.00		22.00		24.00		18.00		11.00
2020	19.00		16.00		31.00		31.00		46.00		44.00		58.00		64.00		44.00		25.00		21.00		15.00		15.00
2021	16.00		21.00		20.00		29.00		43.00		58.00		68.00		51.00		49.00		36.00	c	25.00	f	17.00	g	16.00	p
2022	14.00	l	14.00	j	20.00	e	31.00		44.00		53.00	a	68.00	a	62.00		53.00	a	32.00		19.00		15.00		-----	z
2023	21.00		4.00		26.00		25.00		43.00		52.00		61.00		62.00		51.00		29.00		20.00		17.00		4.00
2024	16.00		25.00		28.00		32.00		40.00		57.00		63.00		45.00		44.00		36.00		22.00	g	20.00		16.00	g
2025	10.00		17.00		26.00		34.00		41.00		59.00		61.00		47.00		41.00	a	37.00		33.00		22.00		10.00	a
2026	18.00		22.00		27.00	b	21.00		42.00	a	42.00	a	46.00		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	15.46		19.45		25.96		32.02		40.68		51.56		62.33		59.47		48.33		35.51		23.72		16.72		11.65
S.D.	5.93		5.38		4.31		3.69		3.57		5.08		4.25		5.06		3.85		4.75		3.77		4.79		5.24
SKEW	-0.30		-1.21		-0.30		-0.99		-0.12		0.14		-1.31		-1.36		0.16		-0.59		-0.30		-1.21		0.20
MAX	25.00		28.00		33.00		39.00		48.00		64.00		68.00		67.00		56.00		45.00		33.00		26.00		21.00
MIN	3.00		4.00		15.00		21.00		33.00		42.00		46.00		45.00		41.00		22.00		13.00		-0.00		4.00
YRS	48		51		50		52		50		50		51		49		49		51		47		47		17