WATERVILLE TREATMENT PLT, ME

Maximum of Maximum Temperature (Degrees Fahrenheit)

(179151)

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
1895	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1896	-----	z	-----	z	55.00	b	74.00		90.00	b	90.00	a	91.00		95.00	c	88.00		67.00		64.00		43.00		-----	z
1897	55.00		46.00	a	51.00		77.00		77.00	a	86.00	a	96.00	a	86.00		94.00		81.00	a	60.00		54.00		96.00	e
1898	41.00		46.00		55.00		67.00	a	77.00		88.00		96.00		88.00	a	88.00	a	85.00		59.00	a	46.00	a	96.00	e
1899	48.00	e	53.00	a	49.00		81.00	b	84.00		91.00	a	94.00	a	93.00		77.00	m	77.00	y	58.00	i	59.00	b	-----	z
1900	49.00		53.00	b	56.00	c	80.00		84.00		87.00	a	92.00		95.00		93.00		78.00		72.00		-----	z	-----	z
1901	44.00	a	39.00	c	50.00	b	79.00		86.00	a	95.00	a	99.00	a	87.00		90.00	a	73.00		71.00	a	57.00	a	99.00	l
1902	48.00	b	57.00	b	65.00	c	70.00		87.00		82.00		90.00	a	85.00		88.00	b	76.00	a	62.00		48.00	b	90.00	m
1903	43.00	a	50.00		74.00		79.00		92.00	a	83.00		89.00		85.00	b	91.00		-----	z	70.00		51.00	a	-----	z
1904	41.00		45.00		57.00		64.00	a	84.00		-----	z	89.00	d	90.00		82.00		72.00	a	46.00		30.00		-----	z
1905	44.00	b	42.00		58.00	a	74.00		82.00		89.00		90.00		88.00		86.00		75.00		60.00		46.00		90.00	c
1906	53.00		47.00		52.00		68.00		85.00		86.00		88.00		93.00		86.00		73.00		57.00	a	42.00		93.00	a
1907	47.00		42.00		62.00		68.00		75.00		93.00	b	92.00	b	91.00		84.00		69.00		58.00		56.00	a	93.00	e
1908	50.00		51.00		57.00		80.00		83.00		89.00	a	97.00		-----	z	90.00		84.00		56.00		-----	z	-----	z
1909	53.00		49.00		47.00		66.00	a	78.00		91.00		92.00	a	96.00	a	83.00		86.00		65.00		49.00	a	96.00	d
1910	53.00		49.00	a	72.00		78.00		80.00		88.00	a	90.00	a	88.00		80.00		82.00		60.00	a	45.00	a	90.00	e
1911	45.00		46.00		54.00		83.00		98.00	a	88.00	b	101.00		90.00	b	83.00	a	76.00		62.00		61.00	b	101.00	h
1912	44.00	a	48.00		53.00		78.00		83.00		89.00		97.00	b	87.00	a	81.00		82.00		65.00	a	51.00		97.00	e
1913	54.00	a	51.00		67.00	b	87.00		82.00		90.00	b	93.00		96.00	b	92.00	b	78.00		68.00	b	52.00		96.00	k
1914	49.00	a	46.00		56.00		80.00	c	91.00	a	90.00	c	90.00		87.00	b	92.00	a	80.00		65.00	a	60.00	e	92.00	q
1915	53.00	a	51.00	b	55.00	a	77.00		81.00		86.00		89.00	a	86.00		90.00	c	76.00	a	63.00		52.00	a	90.00	j
1916	51.00		48.00		68.00		72.00		81.00	a	84.00		94.00		97.00	a	88.00		82.00		67.00		50.00	a	97.00	c
1917	47.00	a	44.00		58.00	a	68.00		78.00		85.00		97.00	a	95.00		78.00	o	65.00	c	60.00		39.00	e	-----	z
1918	39.00		52.00	d	70.00	a	71.00		88.00	a	91.00	a	94.00		93.00	a	78.00		73.00	c	64.00		51.00		94.00	k
1919	41.00	c	48.00		61.00	a	73.00	c	82.00		98.00	a	97.00	a	85.00		79.00		76.00		60.00	a	58.00	a	98.00	k
1920	37.00		43.00		64.00		72.00		85.00		91.00		89.00		93.00		90.00		76.00		61.00		47.00		93.00
1921	48.00		47.00		72.00	a	82.00	a	91.00	a	88.00	b	95.00		88.00		91.00		73.00		62.00	a	53.00		95.00	f
1922	37.00		51.00		61.00		73.00		86.00		90.00		88.00		90.00		81.00		84.00	g	65.00		51.00		90.00	g
1923	47.00		37.00	a	61.00		78.00		83.00	a	94.00		91.00		89.00		84.00		73.00		65.00		55.00	a	94.00	c
1924	45.00		48.00		54.00		69.00		73.00	a	87.00	a	89.00		92.00	a	89.00		78.00		72.00		50.00		92.00	c
1925	38.00		50.00	a	62.00		76.00	a	77.00		92.00		87.00		91.00		89.00		66.00		59.00		52.00		92.00	b
1926	46.00		43.00		54.00		67.00		85.00		88.00		97.00		86.00		81.00	a	79.00		64.00	a	47.00		97.00	b
1927	47.00		46.00	a	60.00		87.00		75.00		89.00		90.00		83.00		82.00		81.00		73.00		56.00		90.00	a
1928	49.00		44.00		52.00		81.00		81.00		87.00		89.00		95.00		80.00		77.00		65.00		52.00		95.00
1929	54.00		45.00		57.00		73.00		93.00		91.00		92.00		85.00		92.00		73.00		61.00		42.00	b	93.00	b
1930	47.00		54.00		53.00	d	70.00		87.00		92.00		89.00		87.00		87.00		90.00		66.00		53.00		92.00	d
1931	44.00		50.00		59.00		79.00		89.00		92.00	a	93.00		93.00	a	92.00	d	78.00	a	70.00	b	46.00	d	93.00	m
1932	61.00	i	49.00		52.00	b	74.00	a	92.00	c	88.00	c	88.00	g	92.00	d	89.00	g	78.00	h	60.00	b	56.00		-----	z
1933	48.00	a	44.00		53.00		72.00		85.00	b	93.00	b	90.00	a	85.00	c	89.00	c	73.00	a	63.00	c	49.00	a	93.00	q
1934	44.00		40.00		55.00		70.00		83.00	b	91.00		92.00		88.00		83.00		70.00	a	67.00		62.00		92.00	c
1935	42.00	b	45.00	a	55.00		80.00		85.00	a	85.00	b	95.00	a	96.00	d	82.00		73.00	a	67.00		42.00		96.00	l
1936	45.00	b	44.00	a	69.00		78.00		89.00	b	88.00		90.00		92.00	a	88.00		75.00		61.00	a	54.00	a	92.00	h
1937	51.00	a	51.00		47.00		73.00		93.00	a	94.00		93.00		96.00		95.00		78.00	b	62.00		49.00		96.00	d
1938	51.00		41.00		64.00		83.00	a	78.00		93.00	i	89.00	k	91.00	g	80.00		84.00		72.00		56.00		-----	z
1939	48.00		53.00		47.00		69.00	b	87.00	d	-----	z	94.00		87.00		92.00		76.00	b	54.00		54.00	b	-----	z
1940	40.00		45.00	a	52.00		70.00	a	86.00		87.00		92.00		89.00		81.00		75.00	a	60.00	a	45.00		92.00	d
1941	39.00	b	42.00		52.00		82.00		90.00		97.00	a	94.00		92.00		89.00	a	73.00		65.00		54.00		97.00	d
1942	52.00	a	42.00	d	56.00		85.00	a	84.00		94.00		90.00	a	89.00	a	91.00		75.00		64.00	a	52.00		94.00	i
1943	38.00	e	51.00	a	62.00	a	71.00	a	84.00		89.00		92.00		95.00		77.00		75.00	a	64.00	c	46.00	d	95.00	p
1944	50.00	c	44.00	c	57.00	c	70.00	d	91.00	b	96.00	a	95.00	a	98.00	a	82.00	a	77.00	c	67.00	d	45.00	c	-----	z
1945	55.00	b	44.00	a	80.00	a	88.00		74.00	a	92.00	b	92.00		91.00		94.00	a	72.00	c	60.00	c	46.00	e	94.00	s
1946	52.00	d	49.00	b	67.00	d	74.00	b	84.00	c	98.00		96.00	c	90.00	c	87.00	c	83.00	c	70.00	n	53.00	h	-----	z
1947	46.00	d	48.00	c	60.00	d	74.00	d	83.00	j	92.00	a	90.00	c	97.00	b	89.00	d	85.00	b	62.00	a	48.00	b	-----	z
1948	39.00	f	49.00	b	61.00	e	70.00	d	78.00	a	86.00		91.00		97.00		90.00		84.00		65.00		50.00		97.00	r
1949	53.00	a	52.00		60.00		75.00		84.00		97.00		97.00		94.00		83.00		79.00	b	60.00		55.00		97.00	c
1950	59.00		42.00	a	61.00	b	67.00		87.00	a	92.00		90.00		89.00		82.00		83.00		73.00		61.00	a	92.00	e
1951	48.00		52.00		60.00		68.00		88.00	a	88.00		90.00		86.00		86.00		73.00		66.00		56.00		90.00	a
1952	47.00		45.00		53.00		72.00		81.00		86.00		97.00		96.00		87.00		72.00		66.00		46.00		97.00
1953	55.00		52.00		68.00		68.00		89.00		90.00	a	94.00		94.00		90.00		78.00		71.00		55.00		94.00	a
1954	44.00		59.00		56.00		79.00		80.00		92.00		85.00		89.00		80.00		84.00		57.00		54.00		92.00
1955	37.00		49.00		54.00	a	68.00		85.00		92.00		98.00		99.00		89.00		78.00		55.00		40.00		99.00	a
1956	48.00		44.00	a	51.00	f	63.00		78.00		95.00		85.00		90.00		85.00		82.00		73.00		48.00		95.00	g
1957	50.00		46.00		56.00		81.00		88.00		92.00		90.00		87.00		86.00		77.00		66.00		57.00	b	92.00	b
1958	45.00		41.00	d	51.00		74.00	a	84.00	b	83.00	b	92.00	d	87.00		83.00		78.00		61.00		44.00		92.00	m
1959	48.00	a	45.00		60.00		71.00		89.00	a	90.00		92.00	b	94.00		88.00		79.00	b	70.00		49.00		94.00	f
1960	48.00	a	49.00		47.00		70.00		85.00		88.00	a	90.00	a	89.00	c	95.00	a	67.00		61.00		48.00		95.00	g
1961	47.00		49.00		54.00	a	68.00	a	88.00	c	92.00		89.00	a	90.00	a	94.00		78.00	a	62.00		48.00		94.00	h
1962	50.00	a	42.00	a	69.00		70.00		93.00		92.00		88.00		85.00		80.00		76.00		57.00		58.00	a	93.00	c
1963	47.00		41.00		63.00		68.00		81.00		94.00		95.00	a	85.00	c	80.00		83.00		63.00		50.00		95.00	d
1964	-----	z	41.00	k	56.00	a	76.00	b	91.00		85.00		93.00		86.00	a	79.00	a	82.00		60.00		55.00		-----	z
1965	43.00	a	47.00		60.00		73.00		83.00		92.00		88.00		95.00	a	92.00		81.00		62.00		45.00		95.00	b
1966	55.00		60.00		56.00		65.00		87.00	a	92.00		93.00		91.00		85.00		79.00		65.00		61.00		93.00	a
1967	46.00		44.00		58.00		69.00		73.00		90.00		86.00		86.00		82.00		75.00	a	67.00		48.00		90.00	a
1968	47.00		43.00		60.00		80.00		82.00		86.00	a	94.00		88.00		85.00	a	84.00		54.00		47.00	a	94.00	c
1969	47.00		48.00		56.00		71.00		88.00		93.00		91.00		89.00		90.00		72.00		62.00		58.00	a	93.00	a
1970	41.00		50.00		57.00		81.00		84.00		89.00		94.00		93.00		86.00		81.00		62.00		55.00		94.00
1971	42.00		48.00		55.00		65.00		84.00		96.00		96.00		88.00	a	90.00		81.00		64.00		50.00		96.00	a
1972	49.00		48.00		54.00		71.00		91.00		83.00		91.00		88.00		87.00	a	70.00		56.00	a	45.00	a	91.00	c
1973	50.00		53.00		62.00		87.00		78.00		90.00		96.00		93.00		90.00		71.00	c	62.00		58.00	a	96.00	d
1974	57.00		51.00	a	68.00		77.00		84.00		91.00		90.00		87.00		84.00	d	75.00	a	72.00	a	55.00		91.00	g
1975	46.00		48.00		54.00		69.00	a	88.00	a	94.00	a	92.00		101.00		77.00		75.00	a	69.00		58.00	a	101.00	e
1976	48.00		57.00		59.00		89.00		85.00		94.00		91.00		94.00		82.00		73.00		56.00		51.00	a	94.00	a
1977	43.00		46.00		75.00		81.00		98.00	b	88.00		96.00		93.00		84.00	a	71.00	a	66.00		48.00		98.00	d
1978	55.00		40.00		55.00		65.00		92.00		86.00		94.00	a	92.00		91.00		74.00		66.00	c	50.00		94.00	d
1979	51.00		51.00		70.00		73.00		92.00		93.00		92.00		91.00		88.00		83.00		68.00		57.00		93.00
1980	55.00		50.00		56.00		67.00		85.00		93.00	b	91.00	a	90.00		90.00		70.00		55.00		51.00		93.00	c
1981	47.00		61.00		75.00		71.00		88.00		85.00		95.00	a	89.00	b	80.00		69.00		66.00		46.00		95.00	c
1982	50.00	a	44.00		56.00	a	77.00		87.00		82.00	a	95.00		87.00		85.00	a	76.00		65.00	a	67.00	b	95.00	g
1983	57.00	a	51.00		55.00		77.00		75.00		93.00	a	95.00		90.00		90.00		84.00	a	62.00		52.00		95.00	c
1984	43.00	a	57.00		54.00		77.00		82.00	a	95.00		90.00	a	93.00	a	83.00	a	78.00	a	64.00		48.00		95.00	f
1985	37.00		47.00		64.00	d	80.00	a	83.00	c	83.00		88.00	b	98.00	a	89.00	a	76.00	a	60.00	a	52.00		98.00	n
1986	55.00	a	45.00		72.00	a	76.00		89.00	c	85.00	b	90.00	a	84.00	b	80.00		78.00		57.00	a	53.00	c	90.00	n
1987	51.00	a	48.00	b	68.00	a	78.00	b	91.00		92.00	c	92.00	c	95.00	b	81.00	c	70.00	c	67.00		48.00		95.00	t
1988	47.00		47.00	a	63.00		63.00		89.00		96.00		95.00		94.00		82.00		80.00		65.00		52.00		96.00	a
1989	46.00		58.00		67.00		64.00		87.00		90.00		96.00		87.00		88.00	a	79.00		65.00		31.00		96.00	a
1990	57.00	a	57.00	a	60.00		92.00	b	80.00		86.00		90.00		91.00		85.00		84.00		73.00	a	56.00		92.00	e
1991	46.00		58.00		59.00	a	75.00		90.00		94.00	a	96.00		90.00		86.00		74.00		70.00		49.00	c	96.00	e
1992	51.00	a	48.00		55.00	a	78.00		96.00		88.00		87.00		89.00		86.00		75.00		64.00	a	44.00	a	96.00	d
1993	54.00		38.00		70.00		69.00		83.00	a	90.00		95.00		94.00		86.00	b	69.00	b	58.00		51.00		95.00	e
1994	48.00		57.00	a	55.00		73.00		84.00	a	91.00		94.00		88.00		82.00	a	73.00		68.00		58.00		94.00	c
1995	54.00		45.00		57.00		64.00	a	78.00		96.00		96.00	a	93.00		84.00		80.00		59.00		40.00		96.00	b
1996	54.00		51.00		59.00		77.00		82.00		89.00		87.00	a	88.00		87.00		69.00		64.00		53.00		89.00	a
1997	46.00		48.00	a	55.00	c	68.00		78.00	b	91.00	b	90.00		88.00		78.00		79.00		63.00	a	46.00		91.00	i
1998	50.00	b	47.00		72.00		84.00		89.00		84.00	b	92.00		91.00		89.00		73.00		54.00	a	65.00		92.00	e
1999	51.00	a	50.00	b	56.00		65.00		86.00		92.00	a	96.00	d	93.00		95.00	a	69.00		67.00		54.00	a	96.00	j
2000	49.00	a	55.00	a	66.00		75.00		79.00	a	89.00	a	85.00	a	86.00		90.00		78.00		62.00	e	59.00		90.00	j
2001	40.00	a	47.00		53.00		76.00		91.00	d	93.00		92.00		96.00	a	91.00		81.00	a	70.00		62.00		96.00	g
2002	47.00		52.00		55.00	a	72.00	a	81.00	a	87.00		96.00		96.00		96.00		80.00		67.00		43.00		96.00	c
2003	39.00		48.00		57.00		78.00		86.00		92.00		89.00		89.00		83.00		76.00		72.00		54.00		92.00
2004	40.00		44.00	a	51.00		73.00		87.00	b	90.00		84.00	b	89.00		78.00		73.00	a	65.00	b	56.00		90.00	h
2005	56.00		52.00		53.00		75.00		72.00	a	96.00		91.00	b	92.00		84.00		77.00		67.00		55.00		96.00	c
2006	57.00		54.00		64.00		71.00		86.00		87.00		92.00	a	90.00	a	80.00		77.00		66.00		51.00		92.00	b
2007	57.00	b	40.00		57.00		82.00		92.00		93.00		90.00		93.00	a	91.00	a	81.00		62.00		52.00		93.00	d
2008	58.00		50.00		53.00		82.00		83.00		90.00		89.00		83.00		87.00		71.00		64.00		55.00		90.00
2009	35.00		49.00		55.00		87.00		90.00		82.00		85.00		91.00		81.00		66.00		64.00		63.00		91.00
2010	50.00		48.00		68.00		76.00		92.00		88.00		92.00		92.00		94.00		75.00		61.00		55.00		94.00
2011	49.00		47.00		64.00		70.00		85.00		88.00		95.00		86.00		82.00		84.00		66.00		57.00		95.00
2012	44.00		46.00		84.00		80.00		85.00		93.00		91.00		90.00		84.00		73.00		65.00		53.00		93.00
2013	56.00		57.00		55.00		70.00		83.00		93.00		92.00		87.00		89.00		77.00		65.00		42.00		93.00
2014	53.00		47.00		50.00		70.00		79.00		87.00		90.00		87.00		85.00		77.00		59.00		51.00		90.00
2015	48.00	a	35.00		52.00		70.00		87.00		85.00		88.00		90.00		90.00		72.00		65.00		54.00		90.00	a
2016	53.00		54.00		62.00		75.00		88.00		85.00		93.00		95.00		90.00		77.00		62.00		49.00		95.00
2017	52.00		57.00	a	50.00		80.00		92.00		91.00		87.00		89.00		88.00		77.00		63.00		54.00		92.00	a
2018	53.00		59.00		56.00		72.00		87.00		86.00	b	94.00		92.00	b	91.00		82.00		60.00	a	57.00	a	94.00	f
2019	51.00		56.00		50.00		70.00		75.00		86.00		92.00		87.00		81.00		65.00	b	68.00	a	54.00	a	92.00	d
2020	54.00		53.00	a	60.00		64.00	c	88.00	b	95.00		92.00		91.00		85.00	a	73.00		71.00		60.00		95.00	g
2021	41.00		45.00		67.00		77.00		91.00		92.00		91.00		91.00		83.00		76.00		64.00		54.00		92.00
2022	41.00		63.00		66.00		64.00		91.00		90.00		91.00		93.00		84.00		76.00		75.00		55.00		93.00
2023	53.00		56.00	a	54.00		76.00		91.00	a	92.00		92.00		84.00		90.00		84.00		57.00		61.00		92.00	b
2024	50.00		55.00		55.00		66.00	f	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	48.02		48.50		59.00		74.20		85.03		89.92		91.94		90.49		86.21		76.52		63.71		51.55		93.61
S.D.	5.42		5.33		7.11		6.26		5.35		3.71		3.26		3.79		4.60		5.00		4.90		6.18		2.28
SKEW	-0.24		0.26		0.89		0.39		-0.21		-0.09		0.01		0.27		-0.00		-0.05		-0.23		-0.48		0.09
MAX	59.00		63.00		84.00		92.00		98.00		98.00		101.00		101.00		96.00		90.00		75.00		67.00		99.00
MIN	35.00		35.00		47.00		63.00		72.00		82.00		84.00		83.00		77.00		65.00		46.00		30.00		89.00
YRS	125		127		128		128		127		125		126		126		125		124		126		125		67