BOTHELL, WA

Average of Average Temperature (Degrees Fahrenheit)

(450826)

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
1931	43.12	a	41.59		44.50	a	51.61	b	58.73		59.12		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	49.78	f
1932	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	61.37	a	56.88		51.60		45.90	a	34.82	a	50.11	g
1933	36.40	b	34.43	a	42.28	a	46.29	b	50.06		55.87		59.29		61.94		54.48		49.75	a	43.96	b	42.06	d	48.07
1934	42.84	c	43.88	b	48.00	a	52.93		54.58		57.65		59.52	b	61.75	a	55.38	b	51.56	e	47.10	a	40.59	b	51.31
1935	38.35		41.78	a	40.08	e	45.67	a	51.61		58.17	a	60.77		60.24		57.91	a	47.67	e	39.57		41.13		48.58
1936	40.60		32.42	c	41.12	b	49.78		55.45		59.76	a	60.90		61.21	c	55.45		52.53	b	44.82		44.45	c	49.87
1937	26.32		37.88	c	46.12	a	45.89	l	51.95	j	59.29	b	60.97	o	61.23	a	56.90	a	52.35		45.26	a	41.03	b	47.38	c
1938	38.37	a	41.24	a	42.95	a	49.40		53.05		58.71	a	62.93	b	58.73		59.47	a	50.58	k	40.78	e	39.90	b	49.59	a
1939	41.55	a	37.75		43.18		50.12		53.25	a	56.50	c	61.45		62.27		56.53	a	49.78	b	46.92	e	43.53	b	50.24
1940	41.39		43.63	b	47.19		50.40		55.84		59.27		62.08		62.08		60.14	b	53.95	c	41.03	a	41.64	b	51.55
1941	41.44		44.66		48.65	a	50.90		53.81	b	58.33	c	65.40	b	61.88	e	55.75	f	51.26		45.43		40.24		51.09	a
1942	37.73		39.38		43.56		48.90		52.98		57.22		63.77	a	64.18		56.68		52.69		41.65	d	40.90	b	49.97
1943	31.80	c	42.05		41.97		50.42		51.73		56.52		60.65		60.37		59.10		51.29		44.38		37.48		48.98
1944	39.89		39.26		42.33	a	48.77	b	53.16		57.69	a	62.40		60.66		60.40	e	52.05		43.73		38.02	a	49.86
1945	41.30	a	41.20	a	40.76	h	44.07	i	54.45	j	55.33	f	62.05	i	60.52	i	55.23	j	50.29	j	39.67	i	36.02	h	41.25	j
1946	38.31	j	40.09	k	42.91	h	46.63	k	55.46	g	56.64	e	61.60	g	61.55	b	58.53	k	46.60	k	39.45	i	36.61	l	59.10	j
1947	33.58	k	42.98	h	46.39	i	49.84	h	56.31	d	58.44	d	61.55	a	61.24	f	57.38		50.55		42.05		39.71	n	54.38	f
1948	40.72	v	-----	z	-----	z	-----	z	-----	z	59.90		61.02		61.30	a	55.83	a	49.65	a	41.23	b	34.80	a	51.96	e
1949	28.18	a	35.04	a	44.88	b	49.69	a	55.82		56.73		60.11		62.32		60.02		47.42		49.19	a	39.14	b	49.05
1950	22.48	e	38.89	a	42.68	a	46.34	a	50.83	a	59.47	a	61.26		63.06		59.09	a	49.61		42.83	d	44.66		48.43
1951	36.50	b	40.06	c	39.73	a	48.66	a	53.25	a	59.43		63.63	a	61.15		59.15		50.90	b	43.85		37.19	d	49.46
1952	35.95		41.27	a	42.58		48.17		52.89		54.68		62.15	g	62.63		60.18		55.79		41.72		41.47		48.85	a
1953	44.24		41.66		43.84		47.87		53.66		56.35		62.69		62.97		58.72		52.40		47.57		41.82		51.15
1954	36.22	b	42.93		40.45	b	46.30		53.03		54.45	a	58.43	a	59.55		57.77		49.19	b	48.16	a	40.00	b	48.87
1955	37.60		37.32		37.44		44.10		49.77		56.72		59.24		58.71		55.00		50.06		36.75		36.84		46.63
1956	36.95		33.43		40.70	a	47.52		55.27		56.05	a	63.03		61.34		57.95	s	48.54	h	41.30	b	41.32		47.69	b
1957	31.27	a	40.18		45.92		51.10		57.71		59.82	h	61.57	a	61.23	k	61.48		50.68		42.93		43.95		48.68	b
1958	43.35	a	48.88		44.37		50.12	e	59.57	b	63.88		68.17	e	64.76	h	59.07		53.59	b	41.21	d	45.31	j	53.22	b
1959	39.98	b	41.02		45.16		49.47	a	53.24	b	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	45.77	g
Period of Record Statistics
MEAN	37.35		40.07		43.32		48.89		53.98		57.87		61.81		61.41		57.96		51.14		43.57		40.30		49.47
S.D.	5.55		3.71		2.73		2.12		2.50		2.00		2.20		1.32		1.97		1.95		2.96		2.76		1.32
SKEW	-1.14		-0.14		0.05		-0.40		0.47		0.79		1.05		-0.32		-0.12		0.21		-0.05		-0.41		-0.23
MAX	44.24		48.88		48.65		52.93		59.57		63.88		68.17		64.18		61.48		55.79		49.19		44.66		51.55
MIN	22.48		32.42		37.44		44.10		49.77		54.45		58.43		58.71		54.48		47.42		36.75		34.80		46.63
YRS	25		25		24		23		24		25		22		23		23		23		25		23		15