FOLSOM DAM, CA

Average of Average Temperature (Degrees Fahrenheit)

(043113)

File last updated on April 20, 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
1955	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	51.43		50.77		51.10	j
1956	48.92		47.47		54.77		59.08		65.18		73.52		77.24		74.58		73.95		63.65		56.63		47.21		61.85
1957	45.44		52.75		55.18		59.65		63.05		76.25		78.05		75.71		74.13		63.16		53.79	b	46.53		61.97
1958	46.47	b	55.04		51.48		59.35		67.69		70.47		76.15		81.34	b	75.15		69.62	a	56.87		53.71		63.61
1959	49.77	a	49.52	a	58.06		63.55	a	63.26		74.29	b	80.55		76.27		70.47		67.66		58.03	a	49.63		63.42
1960	46.24	b	50.50	a	56.27	a	59.05		64.19		76.55	a	80.18		76.02		73.58		64.08		53.25		46.84		62.23
1961	42.55		52.12		52.98		59.73		61.40		75.90		80.47	a	78.53		71.17		66.22	b	53.27		44.24		61.55
1962	42.39		47.41	a	51.18		62.67		62.65		72.33		76.28	a	75.32		71.63		62.05		55.72		46.63		60.52
1963	42.23		55.91		52.68		53.12		62.27		70.25		74.16		76.31		74.28	a	64.63		51.33		40.56		59.81
1964	44.34		50.17		50.82		56.45		61.48		68.80		76.76		76.52		69.70		67.84		50.22		49.60	a	60.22
1965	45.15		49.41		53.58		57.13		64.69		66.87		75.03		76.71		68.35		68.56		55.85		41.76		60.26
1966	46.61		47.91		54.32		63.43		66.79		72.80		73.66		78.68		72.12		65.32		55.85		45.68		61.93
1967	46.19		48.02		52.03		49.43		65.16		68.75		80.21		81.24		75.53		66.92		58.67		45.06		61.44
1968	44.37		54.38		55.79		59.57		63.94		74.65		77.58		73.37		72.78		63.63		52.70		44.82		61.46
1969	43.98		46.41		52.63		57.23		66.52		69.12	a	77.94		79.65		75.08		62.00		57.22		49.66		61.45
1970	49.90		52.34		55.37		55.52		66.84		71.20		78.42		75.29		72.60		62.29		55.30		44.85		61.66
1971	44.33	a	46.46		51.11		55.10		59.48		68.73		77.32		78.84		73.57		61.81		53.22		43.42		59.45
1972	41.48		51.16		58.18		57.57		66.26		72.42		77.31		76.94		69.95		62.06		49.92		39.90		60.26
1973	44.79		51.72	a	50.03		59.97	a	69.03		75.02		76.50		74.65		69.93		63.18		51.58		47.24		61.14
1974	46.88	a	49.00		53.50		56.23		64.82		73.12		76.03		76.04	c	74.40	a	68.13		52.86	b	45.68		61.39
1975	43.03		48.75	b	50.56		52.15		65.63		70.58		74.53	a	74.60	a	74.05		60.25	a	50.38	a	46.95		59.29
1976	47.53		50.91		52.56		54.90		67.21		70.62	a	76.26		71.95		72.83		68.21		57.77		50.32		61.76
1977	43.35		52.95		51.26		63.72		57.86	j	75.47		77.39		77.27		71.72		66.79		55.37		50.98		62.39	a
1978	51.00		51.73		58.50		56.53		66.44		71.15		77.47		77.76		71.27		69.97	a	52.80		43.34		62.33
1979	46.11		48.57		54.73		57.83		66.79		73.32		76.63		74.74		76.00		64.74		54.20		50.37		62.00
1980	48.81		53.69		53.11		59.12		63.18		67.52		77.18		74.07	a	71.82		67.97		57.67		48.76		61.91
1981	48.29		52.73		53.32		59.60		66.82		77.85		77.84		76.06		73.35		62.02		57.22		49.97		62.92
1982	43.62	b	51.46		52.66		56.54	b	66.68		68.41	a	75.65		76.27		71.92		64.66		50.43		46.94		60.44
1983	43.63	a	52.59		53.98	a	55.77		64.98		71.80		74.32		78.11		-----	z	68.07	a	53.32		49.93	c	60.59	a
1984	47.71		50.52		57.25	a	57.66	a	69.27		72.64	a	81.62	a	78.28	a	77.48		60.60		52.40		46.34		62.65
1985	42.55	a	51.23	b	50.68	a	62.53		65.26		76.95		80.33	b	73.17	a	68.92		63.87		51.68	b	41.78	a	60.75
1986	51.19	b	54.18		59.00	a	59.86	a	-----	z	73.34	a	76.44		-----	z	67.12		66.34	b	58.13		47.34		61.29	b
1987	45.72	b	52.12	c	52.52	d	64.24	c	69.66		73.27		72.25	a	-----	z	72.72		70.06		55.03	a	-----	z	62.76	b
1988	48.10		54.80	d	57.81	d	60.93	c	63.69	e	72.31	d	82.21		77.23		74.15		67.61	d	54.62		47.89		63.44
1989	44.23		47.02		55.73		63.77		66.94	g	72.88		78.19		75.24		70.12	a	63.77		56.28		45.89	c	61.19	a
1990	47.13	a	47.18		56.43	a	63.35		65.55		72.88		79.56		77.68	a	74.70	b	68.42		53.64	a	43.17	a	62.47
1991	47.43	a	55.56	d	50.42		57.71	a	62.32		71.04	b	78.98		74.63		76.85		70.89		57.67		47.37		62.57
1992	44.47		53.93	a	57.00		62.83		71.58		73.25		77.18		79.58		74.37		68.93	a	54.84	a	43.90	a	63.49
1993	45.40		50.16		58.82	a	58.76	a	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	53.28	h
Period of Record Statistics
MEAN	45.82		50.99		54.11		58.73		65.29		72.33		77.40		76.53		72.71		65.57		54.40		46.62		61.61
S.D.	2.52		2.69		2.68		3.46		2.59		2.72		2.24		2.17		2.40		2.95		2.54		3.15		1.17
SKEW	0.35		-0.02		0.30		-0.36		0.13		-0.02		0.07		0.28		-0.26		-0.02		-0.07		-0.12		-0.16
MAX	51.19		55.91		59.00		64.24		71.58		77.85		82.21		81.34		77.48		70.89		58.67		53.71		63.61
MIN	41.48		46.41		50.03		49.43		59.48		66.87		72.25		71.95		67.12		60.25		49.92		39.90		59.29
YRS	38		38		38		38		34		37		37		35		36		37		38		37		32