PORTHILL, ID

Average of Minimum Temperature (Degrees Fahrenheit)

(107264)

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
1892	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	51.50	c	-----	z	-----	z	-----	z	-----	z	-----	z	51.50	k
1893	8.93	b	12.14		21.90		30.41	c	41.10		42.17		54.65		51.68		39.67		30.26		21.23		20.60	a	31.23
1894	11.20	a	14.25		25.55		31.45	a	41.81		48.27		51.24	j	52.50	a	38.87		30.77		27.53		15.74		30.72	a
1895	10.93	b	19.25		24.23		32.77		39.27	a	47.32	b	50.89	l	49.86	b	36.80		29.32		24.03		17.67	a	30.13	a
1896	15.52	b	20.97		21.90		30.87		40.39		49.00		57.80	a	53.87	a	39.90		31.80	a	16.60		22.44	d	33.42
1897	17.71		21.00		20.27	a	36.77		47.97		50.23		49.58		55.06		39.37		30.00	a	21.34	a	18.35		33.97
1898	14.00		24.44	a	22.52		33.83		41.81		45.93		58.14	q	-----	z	-----	z	35.29		20.11	b	14.08	g	29.74	d
1899	9.75	g	16.26	a	19.19		26.40		33.61		40.33		54.32		41.61		33.83		27.00		26.97		16.70	a	30.57	a
1900	21.06		7.86		23.81		39.53		37.81		54.87		52.58		45.87	a	44.93		25.77		14.89	b	30.17	b	33.26
1901	12.71		13.78	a	24.65		-----	z	50.65	n	49.00		55.43	a	55.61		41.63		35.52		32.27		25.39		34.60	b
1902	19.48		26.21		27.81		32.47		43.32		43.13		47.77		47.35		38.13		34.26		28.90		21.16		34.17
1903	23.16		12.71		24.00		31.10		37.90		49.50		48.81		49.90		39.37		33.06		26.33		26.48		33.53
1904	23.97		24.07		25.03		34.27		40.13		43.73		51.29		47.16		40.03		34.00		32.70		26.55		35.24
1905	22.81		11.11		30.65		33.37		38.84		46.87		52.42		48.68		42.20		30.77		26.10		24.42		34.02
1906	22.87		23.61		22.23		33.77		41.81		45.27		54.87		50.00		43.13		38.06		26.80		24.06		35.54
1907	6.52		21.75		28.06		31.30		39.94		47.67		50.55		49.26		42.47		35.45		30.97		26.23		34.18
1908	17.84		20.90		27.13		35.23		41.42		45.77		52.58		49.00		41.83		34.00		29.60		21.52		34.73
1909	10.55		25.00	a	26.68		29.40		39.00		46.33		49.61		44.77		42.70		34.70	a	30.00	b	17.35		33.01
1910	15.58		12.32		31.48		37.03		40.42		44.13		49.10		44.87		42.10		38.03		30.40		27.42		34.41
1911	17.26		17.25		26.32		32.10		39.58		44.77		50.23		45.87		41.90		30.55		18.63		20.58		32.09
1912	16.39		24.38		21.55		34.07		41.10		48.46	b	49.74		48.97		36.37		31.10		29.07		24.23		33.78
1913	11.74		9.18		19.65		31.97		40.55		47.27		48.74		49.39		39.50		32.19		29.13		22.80	a	31.84
1914	24.68		16.82		28.35		36.00		39.26		46.03		50.48		47.74		41.37		37.58		30.47		13.16		34.33
1915	17.10		26.32		29.68		36.77		43.71		45.00		49.16		52.13		41.10		36.61		26.30		18.81		35.22
1916	1.06		17.45		28.42		33.40		37.74		43.73		49.94		47.06		39.87		28.87		22.79	a	11.55		30.16
1917	17.13		19.93	a	20.26		31.47		38.74		44.60		50.42		46.39		42.47		31.19		30.13		22.00	b	32.89
1918	21.19		15.93		30.61		31.37		37.10		46.77		52.06		48.77		42.73		39.84		28.67		24.06		34.93
1919	22.68		22.74	a	25.55		34.13		40.48		43.53		49.29		49.06		39.57		28.57	a	24.37		13.58		32.80
1920	19.45		16.75	a	26.77		33.40		37.48		42.97		53.39		49.61		42.10		34.97		27.60		25.93	a	34.20
1921	20.27	a	24.21		27.07	a	32.83		40.06		48.77		48.58		49.00		38.50		34.58		26.07		19.21	c	34.10
1922	11.57	a	11.79		24.61		33.10		38.42		49.20		50.71		51.45		44.20		34.97		25.50		14.68		32.52
1923	24.39		9.52	a	24.71		32.97		40.77		49.17		53.52		49.16		41.03		34.00		28.90		24.00	a	34.34
1924	10.77		29.68	a	27.45		32.27		40.42		44.63		50.35		48.68		40.83	a	35.97	a	28.07		9.30	a	33.20
1925	18.97	a	31.31	b	29.71		35.90		42.32		48.93		53.00		47.87		42.70		29.48		26.73		31.90	a	36.57
1926	23.97		29.11		29.19		34.41	a	40.23		45.55	a	51.74		48.39		38.41	a	36.68		30.20		22.50	a	35.87
1927	18.23		22.81	a	28.52		32.47		38.65		48.00		51.16		50.55		43.80		38.68		30.20		11.67	a	34.56
1928	18.73	a	21.00		29.58		32.28	a	40.42		47.70		53.10		45.77		39.90		32.57	a	28.69	a	21.59	b	34.28
1929	6.07	b	8.64		29.29		32.87		39.26		46.77		48.10		47.65		38.33		31.13		21.67		25.71		31.29
1930	1.14	b	24.89		26.74		37.27		40.48		45.40		50.45		49.39		43.83		33.87		27.37		21.00		33.49
1931	27.00	a	24.82		31.00		34.50		40.23		47.54	b	49.42		47.29		41.53		31.97		22.79	b	19.27	a	34.78
1932	15.00	b	17.66		26.87		35.70		40.87		47.17		49.84		49.61		39.27		35.29		32.10		15.14	b	33.71
1933	23.43	a	11.04		29.19		32.53		39.61		45.80		50.39		51.06		41.17		35.52		32.47		27.27	a	34.96
1934	28.45		24.57		29.65		38.00		42.97		47.17		49.48		47.00		38.87		38.71		34.67		25.47	a	37.08
1935	16.84		20.21		26.19		29.70		37.00		45.13		50.39		46.26		41.40		32.70	a	24.17		25.68		32.97
1936	24.84		2.38		25.94		34.27		43.84		50.00		50.00		47.42		40.50		30.94		20.93		23.23		32.86
1937	-3.97		13.79		24.45		33.50		39.10		47.87		51.65		46.16		42.57		37.45		31.90		24.65		32.43
1938	21.65		19.96		29.00		32.73		39.87		48.37		53.32		44.87		45.43		35.81		24.70		22.74		34.87
1939	25.74		15.39		26.03		34.57		39.94		44.57		50.52		47.50	e	42.10		34.06		27.93		27.65		34.67
1940	18.97		25.14		31.29		35.10		40.74		47.17		52.48		47.16		47.70		38.55		24.20		24.81		36.11
1941	22.29		23.50		29.61		34.17		42.26		48.17		53.61		50.45		43.77		33.84		30.03		26.33	a	36.50
1942	13.70	a	22.93		27.35		32.97		40.13		46.87		50.58		48.10		40.27		33.39		25.67		21.61		33.63
1943	9.53	a	20.07		17.58		34.20		38.06		43.47		47.45		44.94		37.63		33.87		26.83	a	19.19		31.07
1944	17.81		20.79		22.94		30.87		39.35		46.19	c	47.13		45.39		42.97		34.77		28.21	a	19.03		32.95
1945	24.81		23.79		26.29		29.97		39.19		44.73		50.52		46.42		38.24	a	30.61		27.50		21.68		33.65
1946	19.57	a	19.54		29.03		33.77		38.35		43.67		46.58		45.29		39.33		28.68		18.60		19.29	c	31.81
1947	13.23		15.93		25.19		31.97		38.37	a	45.13		48.68		46.29		43.00		40.10		28.10		26.06		33.50
1948	17.26		17.79		24.48		34.55	a	43.52		51.90	a	49.45		48.97		41.33		29.81		28.37		13.45		33.41
1949	-0.74		9.89		22.13		33.87		41.87		43.90		48.26		46.10	a	40.83		29.67	a	32.67		21.14	b	30.80
1950	-1.58		19.71		24.81		30.80		36.90		44.97		49.10		48.84		38.53		37.32		27.40		27.29		32.01
1951	17.55		20.43		21.16		29.47		39.94		45.03		48.87		47.39		40.07		37.00		26.33		13.10		32.19
1952	14.97		21.38		25.45		32.67		39.84		45.60		47.87		45.77		39.87		29.74		21.73		25.48		32.53
1953	29.58		24.61		27.90		32.07		37.77		44.30		47.94		47.45		40.80		33.19		29.90		26.71		35.19
1954	13.74		25.04		21.84		32.30		39.39		43.50		49.32		48.42		41.97		30.48		33.47		24.55		33.67
1955	21.74		15.89		18.90		31.50		37.81		45.47		51.65		44.42		40.30		34.65		18.10		15.87		31.36
1956	19.45		14.93		22.74		31.73		40.97		45.63		50.00		47.00		39.67		35.68		20.30		20.87		32.41
1957	3.40	a	12.59	a	24.52		32.67		43.10		47.33		46.52		43.97		39.07		32.23		24.03		25.07	a	31.21
1958	26.85	k	28.25		-----	z	33.03		42.81		50.57		51.03		50.35		41.47		31.26		22.08	e	22.52		37.34	b
1959	19.81		16.89		28.45		32.80		37.74		46.33		48.90		47.00		42.83		33.42		17.27		20.94		32.70
1960	11.29		18.41		22.94		33.17		39.19		44.67		49.81		48.13		39.03		33.61		25.59	a	21.55		32.28
1961	22.10		29.36		30.06		34.37		41.26		49.27		50.58		49.26		36.24	a	31.97		20.03		18.67	a	34.43
1962	11.10	a	21.64		24.65		33.57		40.19		43.70		47.10		46.35		39.27		35.58		31.37		26.67	a	33.43
1963	7.29		23.18		27.32		31.90		37.42		47.03		47.23		48.03		43.00		34.74		27.53		17.14	c	32.65
1964	20.55		16.03		22.61		30.40		38.13		47.17		51.45		45.58		37.47		32.03		28.87		16.10		32.20
1965	22.35		21.14		16.10		33.40		37.87		47.47		51.35		52.77		37.40		36.45		29.17		23.83	a	34.11
1966	21.23		20.93		25.35		32.53		40.45		45.00		50.03		47.58		45.23		33.29		27.83		27.48		34.75
1967	25.65		25.50		26.45		29.97		39.45		47.13		49.65		48.61		44.63		34.97		26.10		20.42		34.88
1968	17.43	a	23.28		29.29		31.07		38.16		44.73		49.74		48.10		41.53		33.71		28.93		14.90		33.41
1969	6.50	a	16.14		22.58		36.10		42.61		50.57		48.06		48.06		45.33		33.29		29.53		26.29		33.76
1970	18.10		23.43		25.58		33.30		40.45		51.60		52.90		47.90	a	38.13		32.19		25.33		18.26		33.93
1971	18.55		23.18		26.03		34.27		41.06		44.97		49.29		51.06		38.93		32.71		30.03		18.10		34.02
1972	13.61		23.21		31.74		33.07		42.84		47.73		49.16		51.39		40.20		31.10		29.87		17.58		34.29
1973	16.94		23.50		30.00		33.43		39.52		46.93		50.39		49.19		42.90		35.16		25.97		26.35		35.02
1974	17.77		27.39		29.26		36.20		39.48		48.97		51.19		49.48		40.43		30.87		32.37		26.42		35.82
1975	16.45		12.21		24.32		30.30		39.39		45.67		54.90		47.29		38.45	a	35.35		23.67		21.83	a	32.49
1976	18.74		22.38		21.74		34.50		39.84		44.17		49.50	a	48.39		39.20		28.94		24.17		22.55		32.84
1977	16.68		23.79		26.26		32.10		39.94		48.20		49.23		49.77		42.53		29.74		22.43		15.61		33.02
1978	15.84		21.36		25.74		34.33		39.03		46.87		51.74		47.97		44.34	a	30.19		20.87		11.74		32.50
1979	2.67	a	23.52	a	25.97		33.30		40.10		46.77		51.13		50.84		41.80		33.77		22.63		27.29		33.32
1980	7.19		23.59		26.10		36.20		44.94		45.93		49.16		44.32		39.03		31.87		28.43		23.90		33.39
1981	24.16		23.54		28.06		34.07		41.90	a	44.27		48.83	a	48.61		39.77		31.52		28.20		16.83	a	34.15
1982	15.63	a	18.28	c	27.07	a	31.34	a	38.52		50.37		48.77		48.50	a	41.10		31.57	a	23.70		19.43	a	32.86
1983	23.97	a	27.71		33.15	d	34.17		41.84		48.47		51.00		52.00	a	36.80		31.68		32.73		8.55		35.17
1984	22.39		25.69		31.52		33.27		37.81		46.27		51.87		48.48		38.43		30.94		28.53		12.13		33.94
1985	18.00		13.07		23.77		34.83		43.39		47.07		53.45		46.52		38.90		32.81		14.14	a	17.10		31.92
1986	22.58		17.61		29.03		33.43		42.52		50.27		48.29		51.45		42.20		33.16		26.67		22.61		34.98
1987	21.26		23.68		29.65		36.37		43.84		48.43		52.55		47.32		40.69	a	28.71		29.47		18.03		35.00
1988	14.74		23.17		28.87		34.87		42.32		48.90		50.74		48.48		40.00		35.52		28.73		20.77		34.76
1989	18.94		10.29		25.16		33.33		40.13	a	48.38	a	51.03		49.00		40.07		32.58		29.97	a	25.84		33.73
1990	26.52		19.89		28.35		36.37		40.74		47.40		53.65		51.19		42.30		30.42		28.83	a	11.00		34.72
1991	13.10		26.96		24.00		32.50		41.52		46.10		51.48		50.84		41.13		27.87	a	25.20		22.23	a	33.58
1992	24.48		28.34		28.61		33.69	a	39.77		51.03		50.24	b	48.39		37.70		34.42		29.86	a	11.65		34.85
1993	12.69	b	13.18		25.67	a	34.87		46.34	b	47.90	a	48.03		48.33	a	39.40		32.71		18.40		23.42		32.58
1994	27.03	b	18.96	a	27.61		37.47		42.74		46.00		52.90		49.90		41.80		32.61		24.13		22.23		35.28
1995	20.52		24.04	b	26.89	c	32.33		42.13		46.47		51.57	a	45.32		43.10		33.03		29.47		20.19		34.59
1996	14.47	a	17.24		24.03	a	33.83	a	39.43	a	46.40		51.26		45.97		37.93		32.48		24.73		14.77		31.88
1997	17.35		20.25		26.07	c	-----	z	41.84		46.71	b	51.19		48.60	a	41.97	a	33.13		24.24	a	20.00	b	33.76	a
1998	21.44	d	27.54		31.39		34.90		43.31	e	48.46	f	56.52	b	47.93	b	42.50		31.30	a	30.00		18.93	a	35.07	a
1999	22.65		24.79		26.13	a	29.11	b	36.23		45.83		50.10		53.45	b	38.71	b	32.03	b	34.07		27.65		35.06
2000	21.61		21.89	a	30.33	a	34.00	c	41.13		47.03		51.59	b	49.28	b	39.62	a	32.33	a	24.10		18.43	a	34.28
2001	21.21	b	18.74	a	26.39	c	32.93	a	41.63	a	46.60		51.65		52.00		45.00		33.23	e	32.53		21.67	d	35.30
2002	23.54	c	21.41	a	23.39		33.72	e	40.45	b	49.80		53.13	a	48.77		41.48	a	27.10		26.39	b	28.81		34.83
2003	25.10	a	21.96	a	29.67	a	34.97		41.97		49.27		52.61		52.16		44.43	b	36.40	a	21.83	a	18.41	d	35.73
2004	21.70	d	23.96	a	29.71	c	34.48	a	41.86	b	48.58	f	53.89	d	54.87		42.75	b	32.71	g	29.00	d	28.14	b	36.04	b
2005	15.79	c	20.68		27.80	a	34.14	a	44.17	a	47.73		49.84		44.62	e	40.61	b	37.25	c	29.81	c	13.46	c	33.82
2006	28.37	a	19.64	c	27.35		34.68	b	41.33	a	50.59	a	55.53	a	48.13	a	41.10	i	33.14	b	27.93	c	18.92	f	36.67	b
2007	18.78	h	25.42	d	30.75	c	34.57	b	40.37	d	48.29	b	57.04	h	49.26	h	43.08	d	34.86	j	24.86	a	20.31	b	33.46	d
2008	13.71		21.68	d	26.86	i	28.96	c	41.16	f	46.76	i	51.08	f	44.96	e	37.09	h	31.46	e	28.41	h	13.08	f	28.16	g
2009	13.54	g	18.38	d	22.04	e	31.45	j	41.05	k	44.50	n	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	20.21	j
2010	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	34.83	y	23.60		19.03		21.32	j
2011	19.23		15.79		29.52		32.12	f	39.97		46.80		49.74		50.64	c	43.53		33.03		24.55	a	23.00		34.16	a
2012	20.52		23.79		29.13		35.11	b	40.13		47.63		54.33	a	49.85	k	40.47		34.03	a	31.70		27.32		34.92	a
2013	20.58		27.11		29.03		33.14	a	42.55		48.34	a	52.90		52.81	d	49.03	a	32.57	a	26.68	e	16.84		35.97
2014	24.52		13.29		25.77		32.22	g	41.53	a	47.23		54.35		52.77		43.67		37.45		22.80		23.97	b	35.21	a
2015	23.41	b	26.96		-----	z	36.44	n	43.55	b	51.63	c	53.13	h	51.21	l	41.67	r	42.31	r	26.68	b	24.25	s	34.45	g
2016	25.39	m	29.34		31.77		36.81	d	43.23	i	47.24	m	-----	z	51.18	t	-----	z	-----	z	-----	z	16.87		28.70	h
2017	11.55		18.64		32.68		38.33		44.74		50.89	c	50.23		49.65		42.37		31.61		30.97		21.55		35.27
2018	25.68		16.71		27.30	a	35.00		46.58		46.50		49.00	c	47.55		41.13		31.32		28.66	a	28.13		35.30
2019	22.97		9.21		18.45		36.03		43.84		47.30		48.87		49.29		47.70		28.29		25.63		27.33	p	34.33	a
2020	26.17	a	25.43	a	26.26		29.93		42.73	a	46.33		46.81		47.23		42.60		34.23		31.07		27.48		35.52
2021	27.35		20.71		26.61		29.27		42.94		53.37		53.42		50.00		41.57		-----	z	-----	z	-----	z	38.36	c
Period of Record Statistics
MEAN	17.68		20.19		26.32		33.37		40.60		46.96		50.77		48.54		41.04		33.08		26.64		21.12		33.79
S.D.	6.76		5.49		3.38		2.16		2.21		2.35		2.20		2.47		2.45		2.83		4.16		4.93		1.37
SKEW	-0.92		-0.56		-0.51		-0.08		0.34		0.37		0.53		0.34		0.32		0.10		-0.66		-0.38		-0.20
MAX	29.58		31.31		33.15		39.53		47.97		54.87		57.80		55.61		49.03		40.10		34.67		31.90		37.08
MIN	-3.97		2.38		16.10		26.40		33.61		40.33		46.52		41.61		33.83		25.77		14.14		8.55		30.16
YRS	123		128		125		122		124		123		121		122		122		122		125		122		108