CHATHAM, MA

Average of Maximum Temperature (Degrees Fahrenheit)

(191386)

File last updated on April 24, 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
1972	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	72.55		69.07		56.71		47.57		43.81		57.94	g
1973	38.23		37.04		45.55		51.00		57.29		68.73		73.26		75.45		69.07		60.84		49.90	a	46.06		56.03
1974	40.35		36.82		43.03		52.13		57.03		66.10		74.16		75.39		68.93		57.00		50.37		43.32		55.39
1975	41.39		38.25		42.42		47.47		59.71		67.50		75.61		75.06		67.10		61.81		54.90		43.26		56.21
1976	36.23		43.10		45.31	b	55.72	a	60.87		69.00		74.81		73.77		68.87		57.03		46.53		38.55		55.82
1977	30.81		36.11		45.35		53.93		61.03		66.57		75.29		75.35		67.33		58.84		51.87		40.52		55.25
1978	36.68		32.89		39.90		49.73		57.81		69.60		71.77		74.90		66.47		57.97		50.87		42.16		54.23
1979	39.61		29.21		44.19		49.60		61.58		67.07		75.03		72.58		67.70		58.23		54.03		44.23		55.26
1980	37.42		34.62		42.26		51.33		59.61		66.63		75.55		76.42		70.60		57.71		48.23		38.77		54.93
1981	30.19		40.75		43.06		53.27		58.71		70.07		76.48		73.26		67.93		56.45		49.17		41.00		55.03
1982	32.94		37.86		43.52		49.93		59.48	b	63.70		74.45		71.90		67.17		59.55		54.62	d	46.26		55.11
1983	40.23	a	40.07	a	44.29		50.13		57.70	a	69.53		77.10		74.55		72.59	a	60.42		53.42	d	41.13		56.76
1984	37.06		42.55		39.13		49.07		61.35		69.80		74.58		76.65		68.03		60.77		51.50		47.48		56.50
1985	35.73	e	39.48	a	45.87		-----	z	60.68		68.77		74.58		74.03		70.27		62.45		53.13		41.13		56.92	a
1986	39.77	a	36.50		46.55		51.00		-----	z	68.83	a	73.39		-----	z	-----	z	-----	z	-----	z	-----	z	52.67	f
1987	38.77		36.00		42.48		50.17		58.68		68.97		72.81		-----	z	68.07	c	59.63	d	-----	z	42.23		53.78	b
1988	35.71		39.93		43.55		50.45	a	58.26		67.77		75.03		76.43	a	68.83		56.58		53.23		40.65		55.54
1989	40.84		36.79		41.33	a	50.66	a	-----	z	69.20		73.39		74.13		69.53		61.19		50.23		31.45		54.43	a
1990	42.19		41.07		43.52		50.27		57.74		66.63		72.77		76.35		68.67		63.10		51.50		46.93	a	56.73
1991	39.42		41.43		45.48		52.89	c	63.96	c	70.90		-----	z	75.68		68.13		60.65		50.96	b	44.31	b	55.80	a
1992	-----	z	38.72		40.13		47.50		57.58		68.43		71.71		-----	z	67.03		57.97		-----	z	42.71		54.64	c
1993	39.26		34.61		41.61		49.20		60.77		68.77		75.84		75.26		68.43		58.48		52.30		41.84		55.53
1994	33.39		35.21		42.55		53.87		58.26		70.70		77.68		74.52		67.45	a	59.52		56.19	c	45.77	a	56.26
1995	-----	z	39.75	d	-----	z	-----	z	56.71		67.43		76.13		75.94		68.53		63.94		50.47		39.29		59.80	c
1996	38.77	a	37.72		42.10		51.50		60.43	a	69.77		73.00		72.61		68.43		62.84		48.77		47.63	a	56.13
1997	37.77	a	42.00		43.77	a	50.52	a	58.94		68.60		76.65		73.71		70.03	a	59.87		49.33		44.43	a	56.30
1998	42.57	a	41.68		44.13		52.60		59.71		66.87		74.80	a	74.77		70.90		59.74		51.73		46.93	b	57.20
1999	40.81		40.50		-----	z	52.73		60.84		71.27		79.65		74.94		72.00		60.26		53.54	b	45.35		59.26	a
2000	38.28	b	41.14		47.55		52.69	a	60.61		68.40		73.23		72.30	a	-----	z	59.50	a	49.10	a	-----	z	56.28	b
2001	37.87		37.67	v	45.44	o	50.17		60.68		72.38	a	73.35		76.00		69.93		62.42		54.70		47.45		60.50	b
2002	41.93	a	42.25		46.70	a	-----	z	59.34	b	67.80		76.13		77.30	a	70.83		59.68		50.30		41.06		57.58	a
2003	33.16		36.76	k	42.90		45.67		57.03		66.63		76.06		76.87		69.57		59.53	a	51.93		43.42		56.62	a
2004	29.39		36.90		41.57	a	50.00		60.19		67.20		72.97		73.90		-----	z	59.90		52.46	b	44.92	e	53.58	a
2005	35.84		37.21		40.42		50.83		54.52		67.53		74.52		77.55		73.47		60.20	a	53.57		41.03		55.56
2006	43.03		38.26	a	42.52		52.30		59.06		68.68	b	76.65		75.97		69.10		59.90		54.60		48.03	a	57.34
2007	40.29		33.68		43.10		49.20		61.87		68.90		75.00		75.48		70.93		63.55		50.30		40.84		56.10
2008	39.97		40.52		43.71		51.63		58.13		73.17		78.13		75.26		71.38	a	57.26	h	49.07		44.19		56.83	a
2009	33.52		37.54	b	41.45		48.88	m	58.59	d	63.25	b	71.61		75.77		67.70		57.42		53.40		40.26		54.59	a
2010	35.19		36.57		45.17	a	53.93		62.94		70.28	a	78.29		74.90		70.10		60.00		49.77		38.06		56.27
2011	35.23		36.61		42.87		52.10		58.58		68.50		76.03		75.13		69.93		62.42		54.00		46.61		56.50
2012	41.45		42.24		47.10		54.43		60.03		71.00	o	77.87		76.71		69.93		61.61		49.53		45.77		56.97	a
2013	37.32		37.25		42.29		50.13		59.97	b	68.87		76.74		73.87		68.10		58.95	j	49.63		41.94		55.10	a
2014	35.32		36.46		38.97		49.50		59.19		68.43		73.29		72.10		71.00		62.13		50.43		46.81		55.30
2015	37.77		31.68		38.79	b	51.90		62.90		67.23		76.42		77.68		73.63		60.74		55.33		51.55		57.14
2016	40.29		41.45		46.77		50.83		61.10		70.53		78.13		79.45		72.13		62.10		52.03		44.74		58.30
2017	42.45		42.61		41.06		52.73		58.35		68.80		74.74		75.29		69.70		65.65		52.77		39.35		56.96
2018	37.03	b	44.32		42.65	h	50.18	b	60.58		68.43		75.40	a	79.29		71.53		59.84		51.13		41.97		58.16	a
2019	39.26		37.29		41.90		52.60		57.10		67.97		78.31	b	76.68		69.93		60.52		50.17		41.97		56.14
2020	41.19		42.62		45.84		48.30		58.61		69.39	b	77.00		77.48		69.97		62.48		55.10		44.97		57.75
2021	39.32		38.50		44.68		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	40.83	i
Period of Record Statistics
MEAN	37.90		38.42		43.25		51.04		59.44		68.50		75.22		75.24		69.48		60.20		51.60		43.24		56.12
S.D.	3.33		3.23		2.23		2.00		1.84		1.84		1.94		1.75		1.72		2.11		2.27		3.44		0.91
SKEW	-0.71		-0.47		-0.05		-0.13		0.05		-0.28		0.09		0.14		0.50		0.19		0.04		-0.54		0.30
MAX	43.03		44.32		47.55		55.72		63.96		73.17		79.65		79.45		73.63		65.65		56.19		51.55		58.30
MIN	29.39		29.21		38.79		45.67		54.52		63.25		71.61		71.90		66.47		56.45		46.53		31.45		54.23
YRS	47		47		45		44		46		47		47		46		46		46		46		47		30