IMPERIAL, CA

Average of Minimum Temperature (Degrees Fahrenheit)

(044223)

File last updated on April 19, 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
1901	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	46.47		39.74		43.10	j
1902	40.61		44.32		41.39		53.43		62.16		68.90		71.19		74.06		69.67		56.45		42.80		39.06		55.34
1903	38.65		37.29		51.29		58.43		63.52		74.80		77.23		79.19		70.33		58.52		-----	z	38.26		58.86	a
1904	35.77		42.03		50.42		51.23		57.45		65.73		71.42		76.74		67.67		51.97	a	43.13		38.26		54.32
1905	41.45		43.75		50.68		51.43		56.35		62.07		71.57	a	76.33	d	65.47		50.94		47.10		36.35		54.46
1906	33.35		47.71		46.34	b	52.37		55.97		63.90		76.03		74.45	b	64.13		52.97		42.80		37.97		54.00
1907	36.39		43.04		44.37	a	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	43.93		-----	z	41.93	h
1908	39.06		40.10		43.68		49.23		54.20	a	60.13		76.00	a	73.17	b	-----	z	-----	z	-----	z	-----	z	54.45	d
1909	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1910	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	44.52		44.52	k
1911	41.74		41.50		51.00		52.38	a	57.94		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	48.91	g
1912	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1913	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1914	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1915	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1916	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1917	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1918	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1919	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1920	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1921	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1922	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1923	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1924	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1925	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	55.26	d	42.96	e	38.93	d	45.72	i
1926	34.86	c	42.92	c	49.67	a	58.37		62.42	s	70.00	d	73.81	d	73.97	b	65.60	e	54.73	a	44.52	c	39.17	b	55.24	a
1927	38.81	e	43.89	a	44.93	a	53.70		62.29		66.89	b	76.40	a	77.81	d	64.73	d	55.14	c	47.43	b	37.75	c	55.82
1928	38.61		41.07		49.37	a	51.93	c	61.00	c	67.77		74.13	a	72.24	b	66.44	e	54.17	a	43.30	c	36.30	a	54.69
1929	33.07	a	37.74	a	44.81		48.17	a	59.52	b	66.52	a	75.69	e	78.06		64.34	a	58.59	d	39.30		39.00		53.73
1930	38.20	a	41.82		45.29		55.10		55.94		65.37		75.26		71.60	a	62.27		51.94		43.27		32.94		53.25
1931	37.94		46.14		46.61		56.00		63.61		69.66	a	81.71		77.32		66.70		57.10		42.97	a	35.68		56.79
1932	-----	z	43.21		46.39		52.07		60.52		67.23		75.07	a	74.42		68.40		56.10		44.67		37.75	k	58.81	b
1933	34.84		34.36		45.90		51.03		58.10		66.37		76.80	a	76.26		68.67		60.74		45.36	b	39.45		54.82
1934	38.35	h	46.71	d	53.17	h	57.65	d	65.43	a	64.30		77.68	c	79.74	d	68.56	e	59.80	a	49.30		43.32		61.25	b
1935	42.35		46.45	h	45.32	f	53.43	g	59.20	a	70.10		74.32		77.22	d	71.65	d	56.07	a	43.13		41.45		59.50	c
1936	39.74		43.11	j	51.23	a	55.80		62.68		70.87		78.29		78.10		67.67		59.19		47.40		41.10		59.28	a
1937	30.35		40.00		45.77		52.45	a	61.06		68.53		79.00		78.84		73.23		57.97		46.93		43.81		56.50
1938	39.61		41.93		46.90	a	52.67		61.45		68.63		76.42		76.74		70.70		56.53	a	39.17	a	42.97		56.14
1939	38.90		37.68		46.74		56.20		62.42		68.10		77.16		79.10		69.43		55.81		49.70		43.00		57.02
1940	43.35		43.93		50.03		56.90		66.17	a	71.37		73.68		77.13		68.97		59.35		45.17		45.65		58.47
1941	44.87		48.04		49.55		52.03		63.45		67.03		76.23	a	72.97		62.20		55.19		47.93		42.42		56.83
1942	40.81		41.82		46.81		54.37		60.03		67.93		78.39		76.90		66.37		57.94		46.33		42.58		56.69
1943	40.61		45.25		52.52		55.63		60.71		63.97		71.39		74.06		72.00		58.68		44.70		42.06		56.80
1944	39.06		41.00		45.71		55.47		60.23		63.53		70.00		75.13		70.20		59.84		49.57		41.61		55.95
1945	41.13		45.07		46.90		51.93		61.65		66.93		77.42		77.39		72.23		62.00		46.43		40.23		57.44
1946	40.61		39.57		47.06		57.10		61.26		70.47		77.39		79.13		71.37		54.71		45.13		43.52		57.28
1947	37.10		45.64		49.77		54.57		62.39		68.07		76.48		73.97		72.13		58.55		42.03		37.26		56.50
1948	36.84		42.17		44.58		54.43		60.29		66.37		72.71		75.16		70.57		60.42		42.30		37.90	a	55.31
1949	34.23	a	38.68		47.35		58.13		60.87		69.40		75.23		73.39		74.53		55.94		49.73		36.90		56.20
1950	36.55		44.64		49.03		58.27		58.55		66.27		76.16		74.03		66.90		61.52		50.83		44.10		57.24
1951	38.65		42.57		46.71		54.97		61.23		65.63		76.00		75.13		70.10		60.23		45.80		42.13		56.59
1952	38.65		44.28		46.61		54.80		64.29		65.83		74.74		77.68		72.93		64.13		42.17		40.87		57.25
1953	43.74		42.32		47.55		53.40		56.90		65.17		79.29		76.23		69.17		59.55		49.73		38.45		56.79
1954	41.71		47.64		48.26		58.07		61.43	a	67.07		79.00		73.42		70.50		59.68		51.20		41.68		58.30
1955	39.58		40.32		47.84		53.00		59.16		67.27		74.58		78.65		70.60		61.52		48.20		43.77		57.04
1956	43.29		38.31		47.87		53.63		60.42		70.90		75.77		71.74		74.67		58.74		44.53		39.16		56.59
1957	42.74		49.93		50.39		55.10		59.26		72.43		77.97		77.48		70.77		58.87		46.63		43.06		58.72
1958	42.00		48.61		48.39		55.10		66.84		70.30		75.13		80.55		73.33		63.29		48.13		42.68		59.53
1959	42.71		43.36	f	50.30	a	58.37		60.77		72.53		81.00		77.61		68.80		58.65		49.27		43.61		60.33	a
1960	38.52		43.83		52.48		58.00		62.06		72.50		78.45		78.10		74.37		60.77		48.57		39.90		58.96
1961	42.71		45.96		49.55		55.90		60.35		71.10		76.61		77.71		67.37		57.87		46.43		41.77		57.78
1962	40.00		46.39		45.19		57.43		58.00		67.90		75.00		78.97		73.30		60.94		52.13		44.39		58.30
1963	38.42		50.93		48.26		53.43		63.68		66.10		76.06		77.52		73.60		65.10		51.57		40.45		58.76
1964	37.58		41.48		46.87		54.47		60.90		68.07		78.39		77.42		68.27		65.03		47.93		43.10		57.46
1965	43.68		44.96		48.45		56.53		62.29		64.93		75.74		77.16		67.73		61.55		54.40		43.58		58.42
1966	39.23		42.64		50.87		58.33		65.13		70.23		78.45		79.48		72.10		60.26		51.87		44.55		59.43
1967	41.00		44.96		52.74		50.87		61.39		67.73		80.10		80.52		73.47		62.10		54.37		41.10		59.19
1968	41.23		52.03		52.48		54.77		63.65		70.37		77.97		75.29		69.73		61.48		53.07		38.42		59.21
1969	48.32		44.86		49.35		56.40		64.10		67.63		79.52		82.29		75.33		58.58		52.40		44.74		60.29
1970	41.55		47.75		50.16		52.97		62.45		70.83		78.77		80.61		69.53		58.32		50.23		42.94		58.84
1971	40.03		44.07		48.23		53.40		59.77		68.00		77.23		79.45		71.40		56.16		48.03		41.06		57.24
1972	37.45		46.38		54.90		56.60		63.42		71.07		79.13		76.26		70.23		61.94		47.03		41.35		58.81
1973	40.35		48.54		49.13		53.57		64.48		71.47		75.65		76.61		67.77		59.94		50.60		42.61		58.39
1974	43.94		43.14		52.03		55.40		62.97		71.70		77.74		75.45		75.20		62.26		49.47		39.61		59.08
1975	39.52		43.39		48.26		50.73		60.10		68.50		77.26		76.39		74.20		58.84		47.70		41.84		57.23
1976	41.23		48.10		49.10		53.50		63.71		70.07		76.77	a	74.39		71.41	a	61.10		51.10		41.19		58.47
1977	43.68		47.11		47.19		56.47		58.84		72.03		78.77		78.74		72.00		63.65		51.00		47.61		59.76
1978	46.77		48.21		55.29		56.20		63.42		74.03		78.58		77.32		70.80		65.94		50.97		40.13		60.64
1979	42.13		45.04		51.19		57.10		62.55		71.07		77.26		75.29		75.77		63.77		47.67		43.52		59.36
1980	48.81		50.69		51.00		56.33		59.84		70.60		80.87		76.87		71.90		61.48		49.23		46.39		60.33
1981	48.52		47.39		51.29		58.37		63.71		74.13		79.58		80.13		74.83		59.06		51.70		45.29		61.17
1982	42.97		48.46		50.77	a	56.53		61.06		66.30		75.26		79.07	a	71.61	b	59.10		49.37		43.74		58.69
1983	45.48		48.56	a	53.77		53.40		63.03		68.03		77.26		78.06		78.07		64.81		52.43		46.94		60.82
1984	44.87		45.66		51.39		55.80		65.87		70.97		80.03		79.58		76.73		59.87		50.27		44.77		60.48
1985	42.74		42.96		50.10	b	58.70		63.87		71.40		79.39		77.16		67.37		61.13		48.63		42.97		58.87
1986	46.84		50.07		55.19		58.03		63.35		71.97		76.87		80.94		67.97		59.10		50.87		43.32		60.38
1987	40.74		46.64		50.16		60.40		64.06		71.20		74.10		77.00		71.83		66.52		50.90		41.68		59.60
1988	41.42		47.31		50.68		55.57		61.90	a	69.17		77.55		76.61		69.66	a	65.23		50.53		41.61		58.94
1989	40.48		46.11		53.71		60.83		63.77		70.10		77.97		75.71		70.40		60.19		48.47		41.10		59.07
1990	40.61		43.21		51.94		59.80		61.29		71.37		78.77		75.74		73.50		60.06		49.33		36.77		58.53
1991	41.29		48.82		47.47	a	55.00		59.48		66.20		74.32		76.87		73.43		65.33	a	49.00		44.32		58.46
1992	42.03		49.66		51.16		59.23		64.97		68.97		74.68		79.10		73.23		61.81		45.50		39.17	a	59.12
1993	43.26		46.68		52.26		56.93		63.03		70.93	a	73.94		76.00		69.37		62.13		46.47		39.80	a	58.40
1994	41.55		43.11		51.93	b	55.83		59.97		71.69	a	77.71		80.87	a	73.77		60.48		43.27		40.77		58.41
1995	44.48		50.14		50.65		53.17		58.45		65.77		76.26		80.42		76.27		59.97		53.17		44.03		59.40
1996	43.48		50.17		51.58		56.80		64.65		68.93		76.27	a	77.90		70.33		59.06		48.83	a	42.13		59.18
1997	44.52		43.21		49.23		54.93		66.19		67.62	a	72.52		79.48		75.17	a	58.68		50.97		40.55		58.59
1998	42.58		45.86		48.53	a	52.30		58.13		66.00		77.13		78.58		71.00		56.65		46.67		39.79	b	56.93
1999	41.48		43.48	a	46.81		50.57		60.26		67.40		75.32		75.29		71.87		59.65		51.70		43.13		57.25
2000	46.26		49.33	b	51.29		59.76	a	66.65		74.13		77.19		81.00		72.70		62.19		44.47		44.19		60.76
2001	42.42		44.62	b	53.29		56.40	e	67.77		74.14	b	77.63	a	79.07	b	75.00	b	65.07	c	55.68	b	41.24	b	61.03
2002	42.03		44.00		49.10	a	57.77		62.87	a	71.86	a	78.68		75.90	a	73.33		60.94		51.60		43.68		59.31
2003	48.48		49.07		52.81		54.37		64.58		70.03		80.45		81.93	a	77.13		68.32		48.27		43.29		61.56
2004	43.06		45.10		58.32		59.83		66.81		70.87		78.19		77.81		71.18	b	60.42		47.53		42.77		60.16
2005	46.58		47.89	a	51.90		54.73		63.17	a	67.90		75.52		75.32	c	70.69	a	61.90	a	51.86	a	44.42		59.32
2006	43.97		47.07	a	51.59	b	56.87		65.87	a	75.96	b	79.30	a	76.13	a	73.10		61.67	a	51.60		40.74		60.32
2007	39.03	a	47.57		53.26		57.23		64.10		71.03		79.13		80.19		71.82	b	60.33	a	50.77		38.00	a	59.37
2008	39.48		43.10		48.61		51.73		57.84		66.83		74.23		73.19		67.83		56.94		49.39	b	41.10		55.86
2009	42.61		43.64		48.81		53.69	a	-----	z	-----	z	80.03	a	76.48		73.07	b	57.68		48.37		40.97		56.54	b
2010	43.26		46.64		49.06		52.07	a	59.30	a	-----	z	76.48		75.42		68.67		59.23		45.03		43.13		56.21	a
2011	37.97		39.07		48.10		53.57		54.45		66.30		75.58		74.48		67.87		54.68		41.30		31.55		53.74
2012	34.32		38.38		41.48		48.60		56.45		63.50		68.87		71.35		66.00		52.61		41.23		34.94		51.48
2013	32.16		41.57		54.23		60.43		68.00		73.43		80.87		75.68		73.20		57.71		52.00		41.94		59.27
2014	44.26		49.54		55.68		59.73		65.26		73.37		81.29		78.55		76.67		65.29		52.03		47.84		62.46
2015	45.42		51.75		56.39		59.17		62.19		74.17		77.90		81.55		78.57		69.19		47.70		41.39		62.12
2016	44.23		47.52		-----	z	-----	z	62.19		73.00		78.19		76.94		69.87		65.06		50.63		45.26		61.29	b
2017	45.65		49.00		55.84		61.03		63.23		69.17		80.45		81.26		72.37		61.06		55.97		42.58		61.47
2018	46.26		45.18		52.77		59.17		64.81		69.77		81.16		81.26		74.70		62.23		48.87		43.35		60.79
2019	41.03		42.54		50.90		57.90		60.04	c	66.80		76.10		76.32		69.20		54.00		51.37		43.48		57.47
2020	-----	z	49.00		51.03		54.47		65.19		69.20		76.50	k	78.74		75.47		65.52		51.27		40.29		60.02	b
2021	43.81		47.11		49.10		61.50		64.71		75.37		84.65		83.45		79.53		61.71		56.13		47.23		62.86
2022	44.19		45.46		53.52		60.47		66.84		76.60		81.45		83.55		78.33		66.58		46.93		44.19		62.34
2023	44.45		43.68		51.45		57.57		64.00		69.27		82.94		80.90		74.30		64.61		51.43		45.39		60.83
2024	43.45		49.62		52.61		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	48.56	i
Period of Record Statistics
MEAN	41.18		44.93		49.70		55.47		61.88		69.13		76.98		77.27		71.13		59.90		48.16		41.56		58.19
S.D.	3.63		3.57		3.14		2.92		2.94		3.13		2.72		2.61		3.52		3.65		3.64		2.97		2.22
SKEW	-0.40		-0.34		-0.02		-0.13		-0.30		-0.05		-0.26		0.03		-0.10		-0.02		-0.25		-0.61		-0.40
MAX	48.81		52.03		58.32		61.50		68.00		76.60		84.65		83.55		79.53		69.19		56.13		47.84		62.86
MIN	30.35		34.36		41.39		48.17		54.20		60.13		68.87		71.35		62.20		50.94		39.17		31.55		51.48
YRS	104		104		104		103		103		102		103		104		103		104		105		105		92