MAUNA LOA SLOPE OBS 39, HI

Average of Minimum Temperature (Degrees Fahrenheit)

(516198)

File last updated on April 18, 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	30.11	d	29.36		28.33	a	33.28	a	33.87		37.52	a	34.37	a	35.60	a	36.39	b	35.19		31.97		32.13		33.18
1956	32.00	c	27.93		30.61		32.63	c	-----	z	35.31	a	32.80	k	35.06		35.07		35.06		33.90		33.32		33.09	b
1957	29.83	a	26.96	c	31.26		33.79	a	35.70	h	37.08	f	38.17	h	37.13	a	37.03		36.39		35.53		32.93	a	33.43	c
1958	31.16		35.71		32.81		35.53		37.06		38.87		36.52		37.52		37.13		37.26		35.70		31.61		35.57
1959	34.10		31.82		33.74		36.27		36.45	k	38.63	k	38.57	a	36.52		36.57		36.68		34.77	d	32.10		35.11	b
1960	32.00		30.21		29.23		31.08	d	35.29	c	36.07		37.29		39.68		39.87		36.74		34.77		32.26		34.54
1961	33.16		34.41	a	33.97		35.63		34.48		39.53		38.87		39.58		37.87		36.81		33.27		32.06		35.80
1962	32.42		29.82		29.84		34.10		33.61		37.13		38.81		38.47	n	37.63	c	37.45		35.30		34.18	i	34.61	b
1963	32.31	b	33.96		32.39		33.97		33.42		35.67		35.32		37.87		38.20		36.94		33.97		35.83	a	34.99
1964	33.00	a	30.10		30.84		33.17		35.45		39.27		37.19		38.61		37.60		36.03		33.40		34.52		34.93
1965	33.74		27.54		30.90		33.10		35.48		38.07		36.58		37.03		36.33		36.35		36.53		33.48		34.60
1966	32.71		33.71		34.35		33.83		37.06		42.47		40.61		39.87		38.93		38.03		35.20		32.48		36.61
1967	30.90		34.39		34.10		32.83		35.03		37.60		38.65		37.94		38.77		37.13		34.00		33.00		35.36
1968	33.87		34.14		36.06		33.77		37.74		39.20		38.87		38.71		36.93		37.39		38.13		34.32		36.59
1969	31.90	b	34.04		30.93	a	34.73		38.03		40.77		38.88	f	37.68		39.73		38.19		36.27		35.06		36.12	a
1970	33.29		32.61		32.71		31.27		35.06		39.87		37.00		38.32		37.77		37.19		34.43		31.29		35.07
1971	29.13		31.61		33.55		33.20		33.16		37.77		37.94		35.74		36.47		37.58		34.07		31.23		34.29
1972	30.71		30.62		34.16		33.23		33.81		38.63		38.55		38.58		38.10		37.35		37.23		35.58		35.55
1973	35.71		33.68		31.16		35.97		36.23		42.57		39.42		40.00		40.13		39.36	c	35.43		33.65		36.94
1974	33.42		31.32		32.50	c	-----	z	34.68		37.10		36.81		38.68		37.70		36.68		33.13		33.00	c	35.00	a
1975	29.39		30.79	i	32.87		34.27		35.84		39.43		36.23		37.26		38.10		37.71		35.07		31.68		35.26	a
1976	29.42		30.52		30.42		31.37		33.74		39.63		38.65		38.68		36.57		36.81		-----	z	34.00		34.53	a
1977	36.32		35.63	a	32.90		33.93		36.85	d	38.63		39.45		39.10		39.10		37.97		36.17		34.77		36.74
1978	33.94		33.93		33.97		33.13		37.94		37.13		37.55		38.26		36.77		37.06		33.80		32.03		35.46
1979	29.64	c	30.52	g	30.77		34.61	b	37.39		38.30		38.81		39.19		39.43		38.40	a	36.77	d	36.39		36.34	a
1980	34.14	j	37.78	b	34.21	l	35.07		37.16		39.37		39.90		38.87		39.10		37.58		38.17		37.65		38.06	b
1981	36.45		33.67	a	33.55		34.37		39.81		40.53		41.26		39.58		39.00		37.58		38.03		36.23		37.50
1982	34.42		33.52	c	33.61		35.53		37.16		41.53		40.19		39.58		37.67		39.10		40.20		35.32		37.32
1983	38.61		35.86		38.17	b	35.03		38.42		39.07		42.26		40.84		39.32	b	37.74		39.22	c	35.87		38.37
1984	33.37	a	33.03		37.00	c	36.18	b	37.35		42.87		39.37	a	41.89	d	39.20		39.52		38.30		35.39		37.79
1985	36.03		35.25		33.23		35.00		37.74		40.63		41.06		40.35		40.90		40.00		38.17		37.74		38.01
1986	39.39		38.48	a	38.03		36.57		39.68		41.73		41.23		42.71		41.90		39.94		39.33		38.42		39.78
1987	35.32		-----	z	35.26		38.27		37.97		38.77		39.94		41.81		41.20		41.13		37.67		37.39		38.61	a
1988	35.39		33.03		35.23	a	35.13		38.84		41.67		39.23		41.19		41.44	e	38.16		36.62	d	33.65		37.46
1989	31.16		31.71		34.19		32.73		35.06		39.57		38.68		39.55		40.00		38.53	a	37.73		34.39		36.11
1990	35.23		33.32		34.77		37.96	b	39.19		42.43		38.17	a	41.10		38.90		39.03		39.83		35.74		37.97
1991	36.17	b	37.04	c	34.23		37.00		39.13		39.93		42.87		39.71		40.53		40.74		40.30		36.90		38.71
1992	36.81		35.69		35.61		39.90		40.58		43.30		40.39		40.42		40.09	h	39.50	i	37.42	k	35.64	i	39.09	d
1993	32.50	m	33.70	h	32.96	h	37.77	h	36.75	k	42.68	h	39.90	k	41.11	l	37.91	h	38.19	j	35.45	j	36.24	j	-----	z
1994	33.45	k	33.53	i	35.13	h	36.38	i	38.14	j	39.55	h	40.30	k	39.61	h	38.80	j	38.80	k	36.45	j	37.10	j	-----	z
1995	37.65	k	33.53	i	36.57	j	37.55	j	38.64	i	42.86	h	40.45	k	39.35	h	42.10	j	39.90	j	36.90	j	37.20	k	-----	z
1996	34.26	l	33.95	i	32.45	k	37.68	h	40.55	i	39.20	j	38.87	h	40.18	i	40.65	j	39.09	i	38.11	k	35.14	j	-----	z
1997	35.10	j	32.61	j	33.19	j	34.95	h	37.14	j	39.29	i	39.95	i	39.11	m	37.71	i	38.14	i	35.82	m	35.05	j	-----	z
1998	37.50	k	36.74	i	36.23	i	35.64	h	37.45	k	41.91	h	38.86	i	38.33	j	38.24	i	38.00	j	37.15	j	35.91	i	-----	z
1999	32.42	l	31.74	i	32.35	h	30.95	h	37.70	k	39.59	h	38.76	j	39.77	i	38.14	i	38.70	k	35.50	j	33.60	k	-----	z
2000	30.10	k	34.20	i	33.09	h	35.50	j	38.50	i	40.14	h	39.55	k	40.17	h	39.50	j	37.33	j	34.21	k	34.60	k	-----	z
2001	35.48	j	32.79	i	32.77	i	34.33	i	37.00	i	37.81	i	39.00	j	39.22	h	39.68	k	38.45	i	39.10	j	36.05	l	-----	z
2002	35.24	j	32.06	k	31.29	j	37.45	h	37.27	i	39.60	j	40.45	i	40.05	i	39.55	j	38.50	i	39.74	k	35.95	j	-----	z
2003	36.85	k	34.68	i	36.33	j	34.50	h	35.14	i	39.19	i	39.45	i	39.33	j	39.19	i	39.68	i	38.44	l	36.10	j	-----	z
2004	35.84	l	36.26	j	33.17	h	32.82	h	36.30	k	39.67	i	39.15	k	40.23	i	37.29	i	36.80	k	35.84	k	34.62	j	-----	z
2005	34.72	m	31.37	i	35.26	h	35.38	i	37.05	j	38.27	h	38.45	k	39.48	h	39.33	i	38.00	k	36.05	j	35.10	j	-----	z
2006	33.50	k	30.68	i	34.35	h	33.95	j	37.18	i	40.52	i	39.05	k	38.52	h	40.10	j	38.45	i	36.45	j	36.95	k	-----	z
2007	37.70	k	32.67	j	34.44	o	35.12	m	37.59	i	38.90	i	38.86	j	38.14	j	36.94	l	38.22	h	34.60	j	31.85	k	-----	z
2008	30.33	m	30.80	i	33.38	j	32.62	i	35.65	k	38.24	i	34.05	i	37.24	j	37.19	i	38.59	i	34.89	l	34.71	j	-----	z
2009	31.47	l	30.79	i	30.27	i	33.91	h	37.55	k	39.00	h	38.14	i	39.00	j	40.38	i	37.82	i	33.95	k	34.05	i	-----	z
2010	36.68	l	34.00	i	33.22	h	33.68	h	38.75	k	40.05	i	41.65	k	40.55	i	39.48	i	35.48	j	35.10	j	34.05	j	-----	z
2011	31.80	k	33.21	i	33.74	h	34.71	i	34.19	j	36.77	h	38.45	k	38.43	h	38.38	i	38.05	j	33.35	j	32.24	j	-----	z
2012	32.70	k	32.15	i	31.29	j	32.57	i	34.77	i	36.44	l	39.05	l	37.48	j	37.37	k	39.65	h	35.79	k	34.44	m	-----	z
2013	32.10	j	30.63	i	31.29	j	33.77	h	35.64	i	40.05	j	39.55	k	39.27	i	37.74	k	36.71	j	36.33	l	33.33	j	-----	z
2014	31.10	j	33.58	i	30.57	j	34.81	i	38.00	l	37.10	i	39.14	i	38.79	l	37.90	i	36.86	i	37.29	m	35.20	k	-----	z
2015	35.68	l	35.37	i	32.90	j	34.32	h	36.25	k	38.95	i	39.27	i	39.80	k	38.20	j	38.05	i	38.05	k	35.77	i	-----	z
2016	37.53	l	36.11	j	36.17	h	37.76	i	36.20	k	39.68	h	38.10	k	38.41	i	37.71	i	37.00	j	37.11	k	33.60	k	-----	z
2017	32.40	k	32.21	i	34.04	h	36.20	j	34.38	j	41.55	h	38.55	k	39.91	h	38.80	j	39.62	j	36.26	k	32.74	l	-----	z
2018	33.00	j	33.79	i	34.00	j	36.05	i	39.59	i	39.95	i	40.19	j	39.76	j	39.37	k	38.27	i	34.83	l	35.06	n	-----	z
2019	34.42	l	29.05	i	33.62	j	34.86	h	38.68	i	39.10	j	39.32	i	39.18	i	39.74	k	38.59	i	36.11	l	35.90	k	-----	z
2020	34.25	k	31.32	j	33.20	k	35.95	h	38.50	k	40.77	h	40.23	i	39.75	k	39.71	i	38.38	j	37.50	l	35.21	l	-----	z
2021	33.61	m	29.72	j	30.76	j	33.14	i	35.65	k	39.70	j	40.75	k	37.90	k	38.80	j	37.33	m	36.17	l	32.75	k	-----	z
2022	33.00	k	32.47	i	34.13	h	36.27	h	37.45	i	39.82	h	38.27	i	38.08	e	40.05	i	37.60	k	33.69	n	-----	z	38.08	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	33.31		32.93		33.17		34.53		36.55		39.39		38.76		38.90		38.47		37.75		36.18		34.26		36.36
S.D.	2.61		2.79		2.30		1.92		2.05		2.06		1.88		1.75		1.63		1.38		2.21		2.03		1.58
SKEW	0.29		-0.24		0.12		0.59		0.04		0.07		-0.06		-0.07		0.19		0.52		0.19		0.29		0.15
MAX	39.39		38.48		38.17		39.90		40.58		43.30		42.87		42.71		41.90		41.13		40.30		38.42		39.78
MIN	29.13		26.96		28.33		31.08		33.16		35.31		34.37		35.06		35.07		35.06		31.97		31.23		33.18
YRS	37		35		37		37		35		36		35		38		37		37		36		36		26