MAUNA LOA SLOPE OBS 39, HI

Average of Average Temperature (Degrees Fahrenheit)

(516198)

File last updated on April 23, 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	38.87	e	37.30	a	37.02	a	42.66	b	44.37		48.17	a	44.97	a	45.88	a	46.18	b	44.66		41.57		41.40		42.75
1956	40.16	c	36.50		39.42		42.33	c	-----	z	46.39	b	43.20	k	45.00		45.95		44.66		43.86	a	42.53		42.68	b
1957	39.40	a	35.58	c	41.73		43.40	a	46.11	h	47.94	f	48.59	i	46.88	a	47.63		46.84		45.08		41.97	b	43.17	c
1958	43.03		45.88		41.95		46.32		48.48		50.75		47.65		47.65		48.82		47.21		45.82		42.23		46.31
1959	43.27		41.29		45.05		46.93		47.53	m	50.97	m	49.50	a	47.18		47.32		47.87		44.74	e	41.61		45.48	b
1960	42.11		40.66		39.65		42.33	d	46.39	d	47.33		47.26		48.50		48.93		45.16		43.63		41.40		44.45
1961	42.37		42.09	a	43.18		44.45		43.73		49.13		48.03		48.11		46.41	a	44.16		41.87		40.65		44.52
1962	40.94		38.39		38.69		43.02		42.82		46.82		48.21		48.19	o	47.02	c	46.90		44.07		42.98	j	43.69	b
1963	40.41	b	43.04		39.81		42.03		41.10		44.97		45.02		47.63		47.58		46.05		43.52		44.70	a	43.82
1964	41.08	a	39.45		39.03		41.78		43.69		48.80		46.42		47.31		46.58		45.24		41.18		41.71		43.52
1965	41.56		35.57		39.50		41.93		43.76		47.28		46.03		46.47		45.95		45.74		44.00		41.68		43.29
1966	42.29		40.64		44.19		43.00		46.32		51.72		50.03		48.79		47.60		45.89		43.05		40.81		45.36
1967	39.19		43.36		41.34		41.13		43.44		46.77		47.79		47.16		47.62		45.42		42.03		40.35		43.80
1968	41.42		42.10		43.08		41.45		46.58		47.62		47.52		47.44		45.15		46.21		46.80		42.10		44.79
1969	39.18	c	41.52		39.83	a	43.40		47.08		49.43		48.18	f	46.35		48.75		46.89		44.68		43.45		44.60	a
1970	41.23		42.12		42.06		39.68		43.84		49.05		46.15		47.13		46.55		45.58		42.10		37.87		43.61
1971	36.56		40.73		42.48		40.23		42.47		47.17		46.92		44.97		44.80		46.27		42.15		39.08		42.82
1972	37.84		38.72		42.55		40.65		42.37		47.25		46.84		46.87		46.43		45.73		45.55		43.90		43.73
1973	44.95		42.39		38.66		45.05		44.05		51.50		47.95		48.23		48.57		46.93	c	42.22		40.47		45.08
1974	40.16		39.00		39.82	c	-----	z	42.45		44.95		44.92		47.05		45.53		44.34		40.83		40.30	c	42.67	a
1975	36.23		38.37	i	41.29		42.50		44.39		47.73		44.81		45.89		46.65		45.40		42.87		39.13		43.35	a
1976	36.71		37.12		36.71		39.83		42.34		47.38		46.60		46.55		44.40		44.48		-----	z	41.71		42.17	a
1977	44.44		43.48	a	40.82		41.93		45.00	d	46.67		48.02		47.76		47.10		45.77		44.87		43.35		44.93
1978	42.92		42.75		42.73		41.75		45.74		45.72		45.76		46.24		45.65		45.02		40.62		39.90		43.73
1979	37.46	c	38.00	g	39.89		43.29	b	46.06		46.87		47.47		47.52		47.38		45.85	a	44.98	d	45.03		44.71	a
1980	42.50	j	45.63	b	40.61	l	44.28		45.48		48.15		48.26		47.87		47.23		46.85		46.90		45.97		46.66	b
1981	45.26		42.24	a	43.02		43.48		48.92		49.28		50.16		48.18		47.30		46.19		46.20		44.85		46.26
1982	42.05		41.79	d	40.08		43.93		46.27		49.03		48.26		46.92		45.65		47.89		48.13		44.68		45.39
1983	47.48		45.62		47.34	b	43.33		46.66		47.93		50.66		49.53		47.41	b	46.03		47.83	c	43.48		46.94
1984	41.30	a	41.48		45.61	c	44.66	b	45.92		51.28		47.41	b	49.76	d	46.98		47.97		45.48		42.77		45.89
1985	44.37		42.02		40.68		42.40		45.21		48.40		48.82		48.74		48.82		47.60		46.15		45.29		45.71
1986	47.77		46.38	b	46.24		43.80		47.95		50.22		49.11		50.68		48.43		48.23		46.70		46.90		47.70
1987	43.52		-----	z	43.85		46.60		45.73		46.38		48.16		49.87		48.10		48.69		45.47		44.47		46.44	a
1988	43.18		41.41		42.70	a	43.47		47.16		50.02		47.84		49.02		49.30	e	46.16		44.19	d	41.18		45.47
1989	38.31		39.70		42.55		39.50		42.32		47.98		47.53		48.55		48.63		46.32	a	45.93		43.15		44.21
1990	42.66		40.25		43.05		46.48	b	47.74		50.80		46.02	b	48.85		47.23		46.26		45.65		42.05		45.59
1991	43.91	b	44.04	c	40.95		45.05		47.40		47.47		50.85		47.37		48.48		48.10		47.83		44.13		46.30
1992	44.74		43.66		45.21		47.32		48.85		51.62		48.53		47.95		47.90	i	48.32	i	46.82	k	43.82	i	47.23	d
1993	41.50	m	43.33	h	42.91	h	47.75	h	46.33	k	51.86	h	48.38	k	48.87	l	46.39	h	46.74	j	45.05	j	45.00	j	-----	z
1994	42.65	k	41.58	i	44.13	h	46.12	i	47.38	j	48.84	h	49.42	k	49.09	h	47.48	j	47.98	k	44.95	j	47.05	j	-----	z
1995	47.17	k	42.11	i	45.74	j	46.77	j	47.91	i	52.00	h	49.83	k	48.57	h	51.17	j	48.43	j	45.02	j	45.58	k	-----	z
1996	42.16	l	41.90	i	41.42	k	47.05	h	49.91	i	48.08	j	48.35	h	49.39	i	49.33	j	47.93	i	45.58	k	43.64	j	-----	z
1997	43.88	j	41.81	j	40.36	j	44.52	h	46.36	j	48.81	i	49.93	i	49.31	m	47.48	i	47.91	i	44.29	m	45.02	j	-----	z
1998	47.17	k	47.03	i	46.20	i	45.68	h	47.05	k	51.43	h	49.02	i	48.19	j	47.95	i	47.67	j	45.73	j	44.61	i	-----	z
1999	41.84	l	40.50	i	42.52	h	40.82	h	47.23	k	50.05	h	49.52	j	50.02	i	47.38	i	48.67	k	45.08	j	42.42	k	-----	z
2000	39.17	k	44.02	i	43.20	h	45.73	j	48.36	i	49.50	h	49.02	k	49.33	h	48.42	j	45.98	j	43.24	k	44.30	k	-----	z
2001	45.60	j	41.45	i	42.64	i	43.79	i	46.18	i	46.76	i	48.76	j	49.20	h	48.82	k	47.34	i	47.58	j	45.00	l	-----	z
2002	43.76	j	42.18	k	40.48	j	47.02	h	45.09	i	50.08	j	50.84	i	49.86	i	49.38	j	47.55	i	49.79	k	45.69	j	-----	z
2003	47.00	k	45.53	j	46.14	j	44.14	h	45.43	i	48.48	i	49.43	i	49.48	j	48.57	i	49.43	i	47.72	l	44.64	j	-----	z
2004	43.84	l	45.29	j	41.59	h	42.59	h	45.75	k	49.19	i	48.75	k	50.02	i	47.24	i	44.83	k	44.42	k	43.69	j	-----	z
2005	43.22	m	40.37	i	44.83	h	45.95	i	47.45	j	48.82	h	48.83	k	48.87	h	48.81	i	47.88	k	45.20	j	44.38	j	-----	z
2006	42.60	k	40.16	i	41.02	h	44.02	j	46.32	i	51.24	i	49.40	k	48.15	h	48.98	j	46.75	i	45.30	j	46.30	k	-----	z
2007	45.80	k	42.94	k	44.91	o	45.65	m	47.93	i	49.31	i	49.31	j	48.21	j	46.33	l	47.93	h	43.67	j	40.00	k	-----	z
2008	39.67	m	39.52	i	42.86	j	42.05	i	45.45	k	47.95	i	45.32	i	47.64	j	47.71	i	48.02	i	43.92	l	43.52	j	-----	z
2009	40.87	l	39.63	i	38.64	i	42.48	h	47.60	k	49.52	h	47.64	i	48.38	j	50.26	i	47.25	i	43.61	k	43.48	i	-----	z
2010	46.84	l	43.95	i	43.22	h	43.66	h	49.23	k	50.19	i	51.45	k	50.43	i	49.31	i	45.40	j	44.05	j	41.95	j	-----	z
2011	40.60	k	41.24	i	43.67	h	43.57	i	42.76	j	46.45	h	48.48	k	48.67	h	47.67	i	47.64	j	41.20	j	40.19	j	-----	z
2012	42.15	k	41.08	i	40.76	j	42.62	i	44.52	i	46.53	l	48.76	l	47.33	j	47.13	k	48.70	h	44.63	k	43.44	m	-----	z
2013	41.38	j	39.79	i	40.62	j	43.14	h	44.39	i	49.85	j	48.67	k	48.84	i	48.13	k	45.17	j	45.19	l	42.02	j	-----	z
2014	39.50	j	42.05	i	40.67	j	44.50	i	47.11	l	46.83	i	48.98	i	48.50	l	47.33	i	46.41	i	46.56	m	45.25	k	-----	z
2015	45.97	l	44.58	i	42.00	j	44.02	h	46.60	k	48.71	i	48.39	i	47.77	k	46.85	j	48.18	i	46.79	k	45.07	i	-----	z
2016	47.03	l	46.47	j	46.20	h	47.93	i	46.73	k	48.39	h	47.65	k	47.95	i	46.86	i	47.02	j	46.45	k	41.95	k	-----	z
2017	42.10	k	41.61	i	43.39	h	44.00	j	43.60	j	51.77	h	48.55	k	49.39	h	48.00	j	48.93	j	44.76	k	40.92	l	-----	z
2018	42.31	j	41.53	i	41.74	j	45.14	i	48.34	i	49.74	i	49.71	j	48.88	j	48.13	k	46.52	i	44.78	l	44.88	n	-----	z
2019	44.53	l	38.32	i	43.21	j	44.77	h	48.70	i	48.15	j	48.41	i	49.80	i	48.79	k	48.39	i	45.00	l	45.40	k	-----	z
2020	42.85	k	41.58	j	41.77	k	45.05	h	48.52	k	51.02	h	50.66	i	49.70	k	48.67	i	47.38	j	46.67	l	44.34	l	-----	z
2021	42.72	m	39.44	j	38.57	j	42.57	i	45.20	k	49.48	j	50.33	k	48.08	k	48.42	j	46.89	m	45.83	l	40.55	k	-----	z
2022	42.08	k	41.89	i	43.41	h	45.18	h	46.75	i	50.32	h	48.43	i	47.13	e	49.52	i	46.27	k	42.22	n	-----	z	47.13	k
2023	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
2024	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	41.58		41.25		41.67		43.12		45.20		48.28		47.58		47.60		47.14		46.23		44.40		42.40		44.84
S.D.	2.86		2.80		2.47		2.02		2.10		1.83		1.59		1.28		1.24		1.17		2.07		2.07		1.29
SKEW	0.04		-0.27		0.20		0.27		-0.02		0.30		0.11		0.17		-0.23		0.24		-0.10		0.07		0.26
MAX	47.77		46.38		47.34		47.32		48.92		51.72		50.85		50.68		49.30		48.69		48.13		46.90		47.70
MIN	36.23		35.57		36.71		39.50		41.10		44.95		44.81		44.97		44.40		44.16		40.62		37.87		42.75
YRS	37		35		37		37		35		36		35		38		37		37		36		36		26