CHIGNIK, ALASKA

Monthly Total Heating Degree Days

(501716)

Base Temperature = 65 F

File last updated on Jun 7, 2013
*** Note *** Provisional Data *** After Year/Month 197805
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.
Months with 5 missing days or less use mean for missing day(s)
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
1967	0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	324.00	k	847.16	b	824.48	a	1118.00		2789.64
1968	1181.00		1158.00		1070.03	b	965.00		669.00		512.88	d	0.00	z	0.00	z	0.00	z	799.00		0.00	z	0.00	z	6354.92
1969	1149.50		1082.00		971.50		895.50		721.50		498.00		395.00		392.50		466.50		646.00		945.00		932.50		9095.50
1970	1337.00		938.50		930.50		961.00		691.50		519.50		0.00	z	413.50		496.00		762.50		787.50		1142.00		8979.50
1971	1421.00		1111.00		1392.42	a	1104.00		907.00		600.00		405.50		311.50		582.00		774.50		1037.00		987.50		10633.42
1972	1176.00		1252.00		1455.50		1064.50		799.00		607.00		395.50		359.00		465.00		743.48	a	880.50		1067.50		10264.98
1973	1391.00		952.50		1152.50		926.50		839.50		467.50		416.00		420.00		532.50		837.00		869.00		1069.00		9873.00
1974	1097.50		1340.00		1058.50		875.50		659.50		449.00		322.00		300.00		433.97	a	723.50		994.50		1294.00		9547.96
1975	1231.00		1146.50		1156.50		880.50		835.00		526.50		330.50		308.50		509.00		855.00		1294.00		1290.50		10363.50
1976	1329.00		0.00	z	0.00	z	0.00	z	776.19	e	389.50		216.00		301.00		569.00		861.00		0.00	z	0.00	z	4441.69
1977	0.00	z	813.00		988.00		0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	648.00	h	992.50		1214.88	b	4008.38
1978	952.50		978.50		988.50		757.50		646.50		0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	4323.50


Period of Record Statistics
MEAN	1226.55		1077.20		1116.40		936.67		754.47		507.76		354.36		350.75		506.75		784.91		958.28		1123.99		9963.06
S.D.	145.26		158.62		178.88		104.00		89.73		68.94		71.32		51.99		52.07		69.03		151.10		125.88		571.65
SKEW	-0.35		0.01		0.94		0.07		0.28		-0.06		-1.09		0.29		0.17		-0.65		1.15		0.02		-0.39
MAX	1421.00		1340.00		1455.50		1104.00		907.00		607.00		416.00		420.00		582.00		861.00		1294.00		1294.00		10633.42
MIN	952.50		813.00		930.50		757.50		646.50		389.50		216.00		300.00		433.97		646.00		787.50		932.50		9095.50
NO YRS	10		10		10		9		10		9		7		8		8		10		9		9		6