HEADQUARTERS, ID

Average of Minimum Temperature (Degrees Fahrenheit)

(104150)

File last updated on April 24, 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
1959	-----	z	-----	z	-----	z	-----	z	-----	z	42.61	b	42.36	c	40.21	l	39.54	b	30.94		19.83		16.62	g	35.05	g
1960	12.00	g	14.56	d	20.69	e	29.87	g	34.70	d	39.83		45.26		42.53	a	35.07	b	30.07	a	25.33		16.55		30.46	b
1961	16.20	a	27.82		25.10		30.20		34.74		41.90		44.35		45.03		31.11	c	27.10	b	17.28	a	18.10		29.91
1962	9.48		16.39		18.71		26.67		32.81		37.37		40.72	f	41.03	a	33.79	f	31.27	a	27.30		22.71		26.37	b
1963	5.61		22.54		22.65		28.67		34.03		41.53		39.70	d	39.70	a	37.11	c	30.26		26.90		17.63	a	28.86
1964	19.03		13.75	a	20.94		26.72	a	32.16		41.36	b	43.61		39.38	b	31.81	c	29.43	a	23.03		15.19		28.04
1965	20.32		19.27	b	15.90	b	29.53		33.06		40.32	b	44.28	b	46.18	c	31.34	a	29.55	b	26.79	a	19.17	a	29.64
1966	20.00	a	17.74	a	18.23	a	27.20		35.16		40.30		43.26		43.00	a	41.21	b	30.48	b	28.61	b	26.16		30.95
1967	26.42		20.70	a	22.68		27.31	a	33.42		43.70		43.16		42.40	a	38.21	a	30.87		24.07		18.48		30.95
1968	14.65		22.07		26.42		27.30		34.45		42.80		45.13		43.17	a	39.80		30.06		26.73		16.26		30.74
1969	13.67	a	15.79		17.13		28.40		32.97		42.93		42.21	b	39.93	b	37.40		28.87	a	24.50		21.16		28.75
1970	21.42		23.93		23.39		28.23		35.03		46.80		47.68		42.13		33.77		29.13		25.81	c	13.87	h	32.48	a
1971	20.71		17.89		18.10	a	26.60		35.18	c	39.83		43.00		43.00		28.93		23.81		21.30		16.16		27.88
1972	14.13		19.66		28.48	b	28.07		35.90	a	43.63		45.57	a	46.47	a	34.68	b	29.60	a	26.03		13.69	b	30.49
1973	14.97		18.39		27.45		28.03		34.65		42.92	d	43.10	b	42.42		37.34	a	30.06		25.40		25.45		30.85
1974	13.90		24.21		22.23		30.53		32.87		44.23		45.48		43.48		36.43		27.80	a	28.43	b	19.19		30.73
1975	18.74		14.14		18.68		24.67		32.03		39.20		51.13		43.17	a	35.13		32.32		21.50		18.90		29.13
1976	18.13		15.97		19.45		27.37		30.97		38.60		44.87		44.34	b	38.73		27.32		22.90		16.00		28.72
1977	12.10		21.39		25.45		28.93		34.19		44.17		44.43	c	44.90		39.81	c	29.88	g	22.73	d	23.32	l	31.81	b
1978	23.17	h	25.33	g	27.64	f	32.71	i	34.77	i	41.36	h	44.83	m	44.30	h	38.42	k	27.26	h	18.85	j	12.05	l	-----	z
1979	2.27	i	21.20	h	24.32	i	29.55	j	35.91	i	39.90	i	43.38	j	44.83	h	36.89	k	31.17	h	18.16	k	23.18	n	-----	z
1980	10.45	i	24.25	i	26.10	j	31.95	h	40.10	j	40.76	e	46.57	a	39.29	j	40.03		29.39		27.14	b	21.96	e	34.31	f
1981	24.00		22.36		26.35		32.86	a	38.20	a	42.10		43.26		46.38	b	39.17		30.97		27.63		23.31	b	33.05
1982	17.87	a	19.85	b	27.68		26.97		34.30	a	43.09	h	46.33	a	45.35	h	-----	z	32.21	b	-----	z	19.88	e	28.14	d
1983	24.04	f	24.52	a	29.71		28.63		35.69	b	43.96	c	45.83	a	49.22	h	34.80		28.40	k	28.10		10.13		31.26	c
1984	15.96	h	20.29	h	26.14	i	28.00	m	32.55	i	41.24	i	45.11	l	45.26	h	35.89	k	27.86	i	25.53	k	8.50	m	-----	z
1985	13.50	i	15.80	m	17.35	k	29.15	j	38.05	i	39.95	k	46.38	j	42.95	k	35.30	j	26.95	k	14.58	k	5.50	m	-----	z
1986	16.00	k	17.05	h	24.33	j	27.62	i	35.77	i	44.30	j	40.95	i	42.57	j	35.48	i	26.90	k	23.39	l	12.14	j	-----	z
1987	11.38	j	18.06	k	25.41	i	30.27	h	37.24	j	39.10	i	44.89	l	36.35	k	32.38	i	-----	z	19.77	q	16.62	j	-----	z
1988	10.05	l	13.86	h	20.39	h	26.89	k	32.85	k	42.24	i	41.32	l	37.48	h	30.48	i	28.45	k	25.40	j	14.20	k	-----	z
1989	14.65	k	3.35	h	22.59	i	26.75	j	30.77	i	39.91	h	44.68	l	41.65	h	31.55	h	26.91	i	23.63	k	17.62	j	-----	z
1990	20.30	h	9.60	h	18.14	i	27.57	i	31.36	i	40.10	j	46.81	j	46.36	i	37.58	k	28.13	h	24.55	j	9.25	o	-----	z
1991	10.33	j	22.55	h	22.32	i	26.72	l	32.62	j	37.45	j	43.81	j	42.48	j	31.42	k	19.85	k	22.41	m	16.20	p	-----	z
1992	15.09	i	17.46	p	22.11	m	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1993	-----	z	-----	z	-----	z	-----	z	-----	z	43.00	i	44.27	a	44.13		35.30		32.13		18.60		22.52		32.82	f
1994	25.90		19.32		23.61		31.53		38.16		40.53		46.00		44.19		37.57		30.84		22.23		20.71		31.72
1995	18.42		23.82		24.94		29.33		36.58		42.17	a	46.77		41.20	a	39.59	a	30.61		29.50		21.74		32.06
1996	22.71		16.55		24.07	a	31.83		35.42		40.69	a	44.87		42.65		37.17	a	30.50	a	27.10		21.65		31.27
1997	18.42		20.89		26.40	a	28.53		37.52		43.93		45.03		47.83	a	41.50		31.87		27.33		21.65		32.58
1998	23.81		26.29		26.48		31.00		39.19		43.37		51.77		45.97		43.50		31.32		30.67		20.58		34.50
1999	26.13		24.07		23.71		26.07	a	33.23		42.23		41.94		48.48		33.38	a	29.80	a	29.90		23.48		31.87
2000	21.77		26.21	a	27.77		31.33		37.87	a	40.80		44.45		40.84		37.17		31.71		18.77		18.97		31.47
2001	19.71		18.29		25.16		30.90		35.35		40.90		47.81		44.52		38.33		31.16		28.47		19.71		31.69
2002	23.42		17.71		23.03		28.37		35.61		44.00		49.48		40.81		37.17		24.90		24.10		24.00		31.05
2003	25.16		21.75		28.26		31.33		36.52		42.53		46.26		45.68		38.30		32.58		20.90		23.77		32.75
2004	19.81		20.72		26.35		30.00	a	36.10	k	43.53		-----	z	-----	z	-----	z	-----	z	25.70	t	23.23		27.27	f
2005	20.84		18.43		25.77		29.34	a	38.39		41.43		44.48		41.19		32.53		32.65		25.13		14.71		30.41
2006	26.23		15.07		24.90		31.34	a	37.74		45.27		47.71		42.16		36.63		28.13		27.63		17.23		31.67
2007	11.35		23.39		26.10		30.53		34.97		43.13		50.33	a	42.19		36.13		31.32		22.87		20.16		31.04
2008	12.39		22.59		22.48		24.33		34.90		39.60		40.19	o	43.71		35.60		30.10		28.17		17.06		28.27	a
2009	15.81		18.32		19.26		26.20		34.03		41.53		44.29		46.16		38.43		27.61		26.10		13.19		29.25
2010	24.97		24.57		24.16		29.00		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	25.68	h
Period of Record Statistics
MEAN	18.84		20.29		23.63		28.75		35.06		42.01		45.30		43.44		36.75		29.97		25.13		19.47		30.76
S.D.	5.18		3.66		3.52		2.05		1.98		1.95		2.56		2.29		3.15		1.99		3.35		3.62		1.55
SKEW	-0.45		0.05		-0.46		-0.09		0.22		-0.05		0.66		0.25		-0.38		-1.22		-0.58		-0.38		0.07
MAX	26.42		27.82		29.71		32.86		39.19		46.80		51.77		48.48		43.50		32.65		30.67		26.16		34.50
MIN	5.61		13.75		15.90		24.33		30.97		37.37		39.70		39.38		28.93		23.81		17.28		10.13		27.88
YRS	36		38		38		37		36		38		37		35		37		37		38		37		29