SEATTLE UNIV OF WASHINGT, WA

Minimum of Minimum Temperature (Degrees Fahrenheit)

(457478)

File last updated on April 25, 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
1909	10.00	c	26.00		30.00		33.00	a	39.00	c	44.00		47.00		45.00	a	45.00		39.00		27.00		22.00		10.00	h
1910	18.00		22.00		30.00		27.00	c	41.00		45.00		46.00		43.00		44.00	g	32.00		28.00		31.00		18.00	j
1911	18.00		26.00	b	30.00		31.00		40.00		40.00		48.00		44.00		41.00		38.00	n	23.00		30.00		18.00	p
1912	25.00	b	30.00		30.00		37.00		45.00		46.00	a	52.00		50.00		46.00		41.00		36.00		34.00		25.00	c
1913	26.00		31.00		29.00		36.00		43.00		48.00		51.00		49.00		48.00		42.00		38.00		31.00	f	26.00	f
1914	33.00	b	31.00		24.00	e	32.00	a	42.00	b	40.00	d	-----	z	51.00		46.00		43.00		39.00	a	-----	z	-----	z
1915	26.00	h	28.00		31.00		37.00		41.00	f	47.00		48.00		51.00		42.00		39.00		29.00		24.00		24.00	n
1916	15.00		25.00		28.00		34.00		35.00		44.00		45.00		45.00		40.00		33.00		24.00		23.00		15.00
1917	16.00		26.00		27.00		33.00		38.00		44.00		46.00		47.00		43.00		31.00		31.00		23.00		16.00
1918	18.00		22.00		22.00		28.00		-----	z	41.00		46.00		50.00		44.00		38.00	a	33.00		27.00		-----	z
1919	22.00	a	28.00		34.00		36.00		37.00		-----	z	-----	z	-----	z	39.00	a	31.00	d	24.00		5.00		-----	z
1920	11.00	a	16.00		20.00	a	21.00		31.00		36.00	g	43.00		41.00		43.00		-----	z	24.00		33.00		-----	z
1921	28.00	g	24.00	b	30.00		32.00		36.00		45.00		46.00		48.00		36.00		34.00		29.00		18.00		18.00	i
1922	15.00		21.00		30.00		32.00		35.00		43.00		48.00		49.00		45.00		38.00		32.00		16.00		15.00
1923	20.00	b	15.00		27.00	a	36.00		38.00		42.00		49.00		51.00	a	45.00	b	35.00	a	36.00		19.00		15.00	g
1924	15.00	a	29.00	b	31.00		33.00	a	41.00		48.00	a	48.00	b	48.00	a	42.00		34.00		29.00		10.00		10.00	h
1925	29.00		32.00		32.00		37.00		40.00		44.00		50.00		46.00		43.00		37.00		32.00		30.00		29.00
1926	28.00		31.00		31.00		37.00		38.00		47.00		49.00		48.00		36.00		36.00		31.00	a	19.00	a	19.00	b
1927	17.00		29.00		31.00		29.00		39.00		46.00	a	49.00		48.00		46.00		38.00		33.00		15.00		15.00	a
1928	21.00		31.00		30.00		34.00		39.00		46.00		49.00		49.00		42.00		41.00	a	34.00		27.00	a	21.00	b
1929	14.00	c	15.00	a	32.00	a	32.00	b	39.00		43.00		48.00	d	49.00	a	42.00	b	38.00	i	30.00	a	31.00	d	-----	z
1930	15.00	b	29.00	a	32.00	a	38.00	a	30.00	a	43.00		47.00	b	50.00		42.00	b	34.00	f	25.00	g	28.00	b	15.00	y
1931	31.00		32.00		31.00		-----	z	-----	z	46.00	a	50.00		50.00		44.00		39.00		27.00		28.00		-----	z
1932	21.00	a	18.00		30.00		37.00	a	39.00		40.00		46.00		48.00		41.00		39.00		32.00		15.00		15.00	b
1933	28.00		13.00		31.00		32.00		39.00		42.00		48.00	a	50.00		40.00		38.00		34.00		31.00		13.00	a
1934	31.00		30.00		36.00		34.00		41.00		46.00		47.00		50.00		41.00		39.00		39.00		31.00		30.00
1935	12.00		29.00		30.00	a	30.00		40.00		43.00		48.00		47.00		44.00		29.00		23.00	b	29.00		12.00	c
1936	28.00		17.00		27.00		30.00	a	42.00		50.00		51.00		51.00		43.00		41.00		28.00		28.00		17.00	a
1937	15.00		28.00		34.00	a	36.00		40.00		49.00		50.00		47.00	a	43.00		40.00		31.00		30.00		15.00	b
1938	30.00		29.00		31.00		33.00		39.00		45.00		48.00		49.00		50.00		35.00		29.00		27.00		27.00
1939	30.00		24.00		31.00		34.00		40.00		40.00		47.00		50.00		45.00		33.00		40.00		28.00		24.00
1940	26.00		32.00		35.00		35.00		35.00		46.00		49.00		51.00		45.00		39.00		27.00		26.00		26.00
1941	29.00		31.00		28.00		37.00		40.00		47.00	a	51.00		51.00		42.00		31.00		34.00	a	19.00		19.00	b
1942	22.00		28.00		32.00		37.00		39.00	a	45.00		54.00		51.00		44.00		38.00	a	31.00		31.00	a	22.00	c
1943	12.00		30.00		28.00		32.00		40.00		43.00		48.00	d	48.00	c	42.00		33.00		34.00		28.00	b	12.00	i
1944	27.00		30.00		30.00		37.00		36.00		41.00		47.00	e	48.00	b	42.00		42.00		31.00		22.00	a	22.00	h
1945	27.00		30.00	b	29.00	c	33.00		41.00	a	44.00	a	41.00	a	47.00		40.00		37.00	a	29.00		21.00	a	21.00	j
1946	30.00		30.00		31.00	b	35.00		40.00	a	46.00	b	48.00	c	-----	z	43.00	j	35.00	b	29.00	i	22.00		-----	z
1947	10.00	a	-----	z	30.00	c	33.00	c	41.00	a	48.00	b	51.00		50.00	g	-----	z	-----	z	30.00		31.00		-----	z
1948	25.00		23.00		29.00		32.00		37.00	a	48.00		48.00	a	50.00		39.00		35.00		29.00		22.00		22.00	b
1949	13.00		21.00		30.00		36.00		35.00		43.00		44.00		49.00		41.00		29.00		36.00		23.00	a	13.00	a
1950	6.00		8.00		29.00		31.00		35.00		44.00		49.00		47.00		40.00		38.00		29.00	a	32.00	a	6.00	b
1951	15.00		27.00		26.00		31.00	a	38.00		44.00		50.00		49.00		42.00		33.00		29.00		20.00		15.00	a
1952	18.00		29.00		29.00		30.00		34.00		41.00	f	45.00	a	48.00		44.00		38.00		25.00		27.00	a	18.00	h
1953	30.00		31.00		30.00		32.00		40.00		41.00		48.00	b	50.00		45.00		37.00		34.00		32.00		30.00	b
1954	22.00		30.00		23.00	a	37.00		37.00	e	42.00		45.00		49.00		45.00		34.00		35.00		31.00	a	22.00	g
1955	29.00	a	25.00	c	17.00		31.00		38.00		36.00		47.00		46.00		42.00		39.00		10.00	a	25.00	a	10.00	f
1956	18.00	a	15.00		25.00		31.00		39.00		44.00		48.00		51.00		47.00		34.00	d	30.00		18.00		15.00	e
1957	13.00		22.00		34.00		34.00		46.00		43.00	f	-----	z	-----	z	42.00	h	38.00	f	30.00		32.00		-----	z
1958	-----	z	33.00		31.00	a	39.00		40.00	a	52.00	a	53.00	a	53.00	b	45.00	e	38.00	c	25.00	h	-----	z	-----	z
1959	14.00	a	31.00	d	34.00	a	36.00		36.00		45.00		50.00	d	50.00	a	46.00	a	38.00		27.00		30.00	a	14.00	m
1960	26.00	a	28.00		25.00		37.00		40.00		46.00		48.00		46.00		42.00		40.00	d	32.00		28.00	o	25.00	t
1961	29.00	g	34.00		30.00	d	-----	z	41.00	r	45.00	i	51.00	n	52.00	j	44.00	k	36.00	c	30.00	e	31.00	q	-----	z
1962	16.00	d	21.00		26.00	k	36.00	b	37.00		43.00	i	45.00	f	48.00	j	43.00	i	42.00	b	33.00	c	28.00	a	-----	z
1963	17.00		33.00		31.00	c	33.00	a	40.00		48.00	a	48.00	b	51.00		47.00	a	39.00	g	31.00		25.00	c	17.00	r
1964	-----	z	-----	z	32.00	a	35.00		37.00		44.00		-----	z	-----	z	46.00		39.00		30.00	i	10.00		-----	z
1965	24.00		33.00		28.00		36.00		36.00		45.00		50.00	a	48.00		42.00		43.00		32.00		25.00		24.00	a
1966	29.00		30.00		29.00	a	36.00		41.00		47.00		51.00		50.00		48.00		41.00		33.00		33.00		29.00	a
1967	28.00		30.00		28.00		34.00		43.00		51.00		51.00		53.00		48.00		36.00		31.00		24.00		24.00
1968	25.00		29.00		33.00		32.00		35.00		48.00		52.00		53.00		45.00	a	40.00	a	34.00		8.00		8.00	b
1969	16.00		29.00		29.00		36.00		38.00		50.00		51.00		48.00		44.00		35.00		32.00		28.00		16.00
1970	24.00		33.00		31.00	a	36.00		39.00		46.00		52.00		51.00		40.00	c	31.00		25.00		25.00		24.00	d
1971	24.00		27.00		24.00		35.00		42.00		46.00		46.00		52.00		44.00		28.00		32.00		25.00		24.00
1972	12.00		21.00		31.00		33.00		37.00		46.00		45.00		52.00		37.00		35.00		35.00		13.00		12.00
1973	18.00		29.00		32.00		37.00		41.00		42.00		49.00		48.00		47.00		40.00		32.00		33.00		18.00
1974	21.00		32.00		29.00		35.00	a	38.00		45.00		49.00		52.00		43.00		38.00		32.00		30.00		21.00	a
1975	27.00		29.00		30.00		33.00		39.00		47.00		52.00		50.00		47.00		37.00		25.00		29.00		25.00
1976	28.00		24.00		26.00		33.00		42.00		42.00		50.00		52.00		48.00		39.00		27.00		31.00		24.00
1977	25.00		32.00		34.00		37.00		39.00		46.00		50.00		51.00		45.00		40.00		21.00		29.00		21.00
1978	26.00		32.00		28.00		34.00		40.00		49.00	a	50.00		51.00		46.00		36.00		26.00		16.00	a	16.00	b
1979	18.00	j	21.00	j	34.00		38.00	d	45.00		46.00		-----	z	48.00	m	49.00	a	40.00		31.00		29.00		-----	z
1980	12.00	a	29.00		30.00		36.00		41.00	a	45.00	c	51.00		47.00		47.00		38.00		33.00		24.00		12.00	e
1981	28.00	a	23.00	d	28.00		32.00	b	40.00		45.00		48.00	d	49.00		43.00		35.00		29.00		27.00		23.00	k
1982	9.00		26.00	a	28.00		32.00		34.00	a	45.00		48.00	a	49.00		45.00		33.00	b	27.00	c	25.00		9.00	h
1983	22.00		30.00		24.00		29.00	a	42.00		49.00		44.00		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	21.09		26.76		29.41		33.77		38.86		44.99		48.40		49.02		43.54		36.79		30.26		24.94		19.66
S.D.	6.82		5.53		3.34		3.04		2.93		2.91		2.45		2.36		2.96		3.56		4.68		6.56		6.10
SKEW	-0.18		-1.26		-1.09		-1.14		-0.38		-0.22		-0.36		-0.86		-0.31		-0.47		-1.05		-1.04		-0.13
MAX	33.00		34.00		36.00		39.00		46.00		52.00		54.00		53.00		50.00		43.00		40.00		34.00		30.00
MIN	6.00		8.00		17.00		21.00		30.00		36.00		41.00		41.00		36.00		28.00		10.00		5.00		6.00
YRS	69		72		74		73		71		69		68		66		68		67		70		69		38