SAINT HELENS RFD, OR

Average of Maximum Temperature (Degrees Fahrenheit)

(357466)

File last updated on May 8, 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
1976	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	74.41	b	73.10		64.97		56.67		46.74		63.18	g
1977	44.14	b	54.79		53.71		65.87		63.29		75.93		77.90		84.68		69.97		64.16		50.30		47.58		62.69
1978	46.23		-----	z	59.37	a	60.90		66.20	a	77.67		81.43	a	78.13	a	70.47		69.16		48.77		41.74		63.64	a
1979	37.52		46.67	a	60.73	a	61.85	c	70.77		76.30		82.77		79.35		-----	z	-----	z	52.10		49.97		61.80	b
1980	41.50	a	51.11	a	54.24	f	62.74	c	63.96	c	68.09	h	81.76	f	77.03	b	76.07	a	68.50	e	52.24	a	49.43	c	60.29	c
1981	52.58	e	52.46	d	59.57	c	62.97	a	65.74		70.41	c	76.08	f	86.48	h	76.86	a	62.54	c	55.87	g	47.68	f	62.89	d
1982	43.36	c	49.80	c	56.00	a	58.78	c	69.15	e	78.69	d	77.29	c	79.34	b	74.61	b	64.00		50.90	a	46.96	f	63.81	a
1983	48.17	h	53.31	b	58.04	e	64.64	b	71.47	a	70.63	c	75.60	a	79.36	c	72.00	a	62.79	b	52.15	c	39.72	b	63.61	a
1984	48.93	d	52.11	b	59.00	e	57.43	b	67.92	g	72.52	c	82.38	b	83.50	e	75.23	d	59.67	a	51.63		42.30	a	62.24	a
1985	44.93	b	47.11	a	55.10	a	63.79	a	69.33	d	76.36	b	88.11	c	82.12	f	71.36	e	62.28	b	42.64	e	41.00	e	60.18	a
1986	50.34	b	52.81	b	62.34	b	61.17	f	69.19	d	79.31	d	76.04	e	86.61	c	-----	z	67.58	e	53.10	a	48.00	c	64.53	b
1987	45.73	e	52.63	i	59.18	c	65.69	d	73.10	a	79.67	c	77.48	d	84.74	d	79.89	b	72.81	d	56.37	c	44.79	b	67.22	a
1988	45.50	c	52.65	i	59.04	e	63.08	e	67.00	d	74.50	f	82.57	c	82.48	f	78.96	e	67.88	g	53.08	e	47.18	c	62.05	d
1989	47.55	b	43.67	d	52.56	d	67.62	f	68.81	e	76.52	e	77.07	d	77.52	d	82.88	f	65.00	b	55.04	f	47.38	e	61.79	c
1990	48.90	b	49.22	a	59.94		65.72	e	67.04	c	74.21	a	84.75	c	82.04	d	79.09	g	61.04	f	53.93		39.69	b	62.54	b
1991	48.10	a	58.19	a	57.03	b	62.04	c	65.14	c	71.13	g	83.67	d	82.57	c	83.62	d	70.28	f	54.80	e	47.59	b	64.27	b
1992	49.64	c	58.74	j	65.48	d	66.27	d	79.81	e	81.08	e	83.93	c	83.96	e	78.00	h	67.59	d	52.80	e	44.86	c	67.54	b
1993	43.44	d	51.25	d	60.08	e	60.77	d	73.00	c	72.59	c	73.71	c	81.28	b	81.43	b	67.86	b	47.89	c	46.61	c	63.33
1994	50.10	j	47.25	d	62.12	e	65.93	b	75.81	d	76.33	f	88.73	a	84.13	a	81.11	c	64.18	c	48.75	b	47.75	c	66.58	b
1995	50.97	b	55.93		60.15	e	64.46	b	75.21	b	79.32	b	85.68	f	82.29	g	81.19	d	64.46	g	57.92	e	47.76	f	65.64	d
1996	46.38	b	49.84	d	60.35		63.86	a	66.79	b	78.29	f	88.87	a	87.30	d	73.66	a	63.43	c	52.00	b	48.29	c	63.71	a
1997	47.53	a	55.15	b	56.18	c	63.04	d	76.93	c	74.96	g	82.58	g	87.43	c	78.73	o	63.75	g	57.93	c	46.89	c	61.39	d
1998	49.41	b	54.28	c	59.33	d	66.79	b	66.22	h	78.44	c	84.57	h	89.00	d	84.32	h	65.74	h	53.26	g	47.08	g	66.21	f
1999	48.68	c	50.67	a	56.17	b	67.96	d	68.96	c	73.60	e	83.04	e	85.31	e	85.29	i	68.58	e	54.96	f	50.50	c	65.35	b
2000	46.20	a	52.52	d	54.96	d	68.62	d	68.67	d	78.42	d	83.78	d	85.15	d	78.11	b	64.68	i	51.46	d	46.14	c	64.91	a
2001	48.55	b	53.65	b	59.23	a	62.26	c	78.14	i	73.96	d	80.52	f	84.36	c	79.26	g	65.60	f	55.32	h	48.78	h	63.67	f
2002	46.00	k	54.37	i	57.83	m	65.36	b	69.22	d	80.88	d	86.12	g	86.92	g	79.45	j	68.59	i	56.54	b	49.52	d	64.30	g
2003	52.15	e	53.81	b	57.00	g	60.70		71.68	c	82.21	b	89.54	c	86.80	f	80.42	f	67.70	h	55.21	p	46.89	d	65.28	e
2004	44.06	m	54.82	l	63.37	d	71.38	a	71.79	g	81.58	d	89.67	g	85.37	d	74.18	h	66.04	f	51.35	j	49.96	h	75.42	h
2005	48.76	j	56.52	g	62.29	c	64.82	h	73.37	d	74.28	e	84.93	d	86.88	e	76.15	j	64.16	l	51.77		44.93	c	68.35	e
2006	51.00	e	49.91	e	55.57	c	66.50	b	-----	z	77.40	j	80.80	a	79.84		76.75	b	61.38	g	49.30	c	41.69	b	61.26	c
2007	42.88	f	47.48	e	55.27	a	57.22	g	67.97		70.43	b	80.07	a	75.40	a	70.79	b	60.20	a	50.43		43.90		62.19	b
2008	41.68		50.21		50.06		53.93		66.30	d	69.54	d	78.83	g	77.10		74.43		67.12	w	52.89	c	40.07	a	57.62	b
2009	43.48		48.78	a	50.43	a	57.57	b	68.53	a	70.21	b	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	56.50	f
2010	-----	z	-----	z	-----	z	56.97	a	61.50	a	66.00	e	74.54	e	78.58	e	69.90		61.33	a	48.80		45.19		62.53	c
2011	44.77		43.32	c	50.00		52.93	a	60.21	c	67.32	b	72.72	b	76.88	f	76.58	f	57.79	c	48.04	b	42.23	e	53.93	b
2012	44.67	d	47.42	e	48.33	d	57.69	d	64.46	e	66.19	i	74.48	h	79.27	i	74.58	k	60.92	g	51.71	b	43.78	d	51.15	e
2013	39.23	e	47.82	f	53.96	e	59.80	e	64.80	f	71.35	m	79.39	m	78.89	l	67.21	k	60.47	p	48.62	d	38.41	d	48.00	g
2014	44.09	i	43.95	h	54.26	l	57.80	j	66.87	p	70.15	q	78.67	s	84.35	n	77.70		63.10	u	50.95	h	48.62	j	77.70	k
2015	47.58	g	55.47	k	59.87	p	58.87	g	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	46.44		50.81		57.42		62.68		68.99		75.29		81.27		82.16		75.78		64.72		51.85		45.19		63.01
S.D.	3.68		3.58		4.14		4.17		4.47		4.49		4.90		4.02		4.14		3.72		3.34		3.36		0.45
SKEW	-0.45		-0.19		-0.41		-0.41		0.35		-0.30		-0.01		-0.22		0.17		0.19		-0.23		-0.39		-0.00
MAX	52.58		58.19		65.48		71.38		79.81		82.21		89.54		89.00		83.62		72.81		57.93		50.50		63.33
MIN	37.52		43.32		48.33		52.93		60.21		66.00		72.72		74.41		69.90		57.79		42.64		38.41		62.69
YRS	30		28		33		33		31		28		25		28		22		20		30		31		2