BOTHELL, WA

Average of Minimum Temperature (Degrees Fahrenheit)

(450826)

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
1931	35.53	a	30.89		34.57	a	41.83		47.19		50.63		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	40.11	f
1932	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	50.16		42.13		42.16		39.00	a	27.70	a	40.23	g
1933	31.73	a	26.85	a	33.32		34.61	b	40.39		43.30		45.58		47.97		44.63		40.74		37.87		36.58		38.63
1934	36.00	b	33.04		36.40	a	40.47		42.90		44.00		46.34	b	47.80	a	44.07	b	39.78	d	40.70		34.40	a	40.49
1935	31.23		31.93	a	32.56	d	32.38	a	38.06		46.72	a	48.19		46.77		43.55	a	37.69	e	31.17		34.29		37.88
1936	33.97		24.07	b	32.03	a	38.67		44.06		48.53		47.81		46.57	a	41.90		41.86	b	32.10		35.03	b	38.88
1937	18.97		31.18		36.48		38.14	h	40.50	a	47.69	a	47.79	c	49.39		45.83	a	41.52		38.47		34.61		39.31	a
1938	31.42		32.04		33.83	a	37.77		40.16		45.50		47.77	a	44.68		46.72	a	39.95	k	32.92	d	33.29		38.74	a
1939	36.83	a	30.86		34.03		38.57		40.63	a	46.82	b	48.19		47.00		44.59	a	40.37	a	37.69	d	36.97	b	40.21
1940	33.87		36.93	b	38.00		40.43		43.13		44.83		48.77		48.42		48.79	b	44.61	c	33.63		34.23		41.30
1941	32.39		33.54		34.77		38.53		43.97	b	47.73		50.29		49.39	c	46.59	c	42.65		36.90		34.42		40.93
1942	28.77		31.07		33.35		38.23		42.81		46.80		51.77	a	50.74		42.90		41.81		34.14	b	36.35		39.90
1943	25.50	a	31.86		32.03		39.33		41.32		44.60		47.52		47.81		45.03		41.74		34.80		29.39		38.41
1944	31.45		31.31		31.97	a	37.86	b	40.58		46.13		48.97		48.35		46.44	e	41.74		35.90		28.53	a	39.10
1945	33.13		34.32		32.74	h	35.67	i	43.95	j	43.79	f	46.09	i	46.32	i	42.70	j	39.10	j	35.30	g	30.00	g	33.73	j
1946	33.54	g	33.61	j	33.61	h	36.58	k	40.04	g	44.20	e	47.96	g	47.38	b	45.32	k	35.65	k	29.50	h	31.20	k	45.79	j
1947	26.00	i	33.05	h	32.91	i	36.68	h	41.56	d	46.54	d	47.20	a	46.24	f	43.73		42.45		35.53		32.65	k	42.84	f
1948	28.35	h	-----	z	-----	z	-----	z	-----	z	47.07		48.03		51.55		41.67		37.13		34.14	a	27.97	a	41.08	e
1949	19.61		27.00		34.70	a	37.83	a	41.26		43.00		45.74		48.52		46.13		36.65		40.63		32.60	a	37.81
1950	14.86	c	31.68		36.32		35.37		38.23		47.83		46.61		48.42		43.27		41.16		35.71	b	39.68		38.26
1951	30.37	a	32.19	a	31.29		32.60		40.27	a	43.93		47.57	a	45.29		44.47		40.93	a	36.13		31.34	b	38.03
1952	30.81		33.07	a	34.00		34.33		39.97		42.33		47.38	g	49.58		46.17		44.32		32.97		35.10		38.42	a
1953	39.74		34.29		35.90		37.77		42.42		46.53		49.23		48.94		45.23		42.06		39.70		35.10		41.41
1954	31.10	a	34.89		28.13	a	37.20		40.19		43.17	a	45.87	a	48.74		46.63		37.69	b	40.62	a	33.80	a	39.00
1955	31.55		29.54		28.45		33.17		38.94		46.00		48.65		44.23		42.57		40.74		29.13		29.42		36.86
1956	30.23		26.93		32.00		33.67		41.71		46.00	a	48.52		48.23		41.00	s	41.65	h	32.86	b	35.06		37.52	b
1957	21.97	a	30.79		36.45		39.70		45.84		48.14	h	48.48		47.55	k	45.27		39.90		34.27		37.55		38.02	b
1958	37.17	a	40.21		33.61		37.46	d	44.97	b	51.03		51.93	d	47.91	h	47.00		42.81		34.11	b	39.45	i	42.03	b
1959	34.57	a	34.25		37.00		38.55	a	41.77		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	37.23	g
Period of Record Statistics
MEAN	30.51		31.79		33.80		37.23		41.71		46.04		48.12		48.08		44.80		40.98		35.64		33.63		39.19
S.D.	6.05		3.36		2.50		2.65		2.26		2.22		1.65		1.79		1.85		2.09		3.11		3.20		1.37
SKEW	-1.08		0.00		-0.53		-0.43		0.61		0.40		0.67		-0.38		0.02		-0.55		0.05		-0.43		0.23
MAX	39.74		40.21		38.00		41.83		47.19		51.03		51.93		51.55		48.79		44.61		40.70		39.68		41.41
MIN	14.86		24.07		28.13		32.38		38.06		42.33		45.58		44.23		41.67		36.65		29.13		27.70		36.86
YRS	25		25		24		23		25		25		23		23		24		23		25		23		16