HUMPTULIPS SALMON HATCH, WASHINGTON

Monthly Total Heating Degree Days

(453826)

Base Temperature = 65 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1987	0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	161.72	a	133.00		185.50		386.97	b	529.50		828.50		2225.18
1988	795.50		608.50		653.00		489.00		415.00		304.50		173.00		177.73	a	281.38	a	367.50		626.50		750.00		5641.61
1989	808.00		851.93	a	723.00		457.00		377.50		219.00		192.50		169.50		192.00		428.50		606.50		719.00		5744.43
1990	706.00		767.00		600.00		459.00		409.00		275.50		108.00		109.00		157.00		521.50		615.00		966.50		5693.50
1991	850.50		523.50		734.00		562.00		448.00		322.50		181.50		159.50		175.00		477.50		600.50		726.50		5761.00
1992	678.50		571.00		535.00		495.00		318.00		204.00		142.50		154.00		303.50		412.50		646.50		858.50		5319.00
1993	938.00		723.00		632.00		521.50		288.00		257.50		223.50		141.50		251.00		416.50		757.00		806.00		5955.50
1994	681.00		739.00		613.50		485.50		387.50		297.50		172.00		138.00		171.00		524.50		780.00		808.50		5798.00
1995	657.50		585.00		653.00		550.00		327.50		254.50		132.50		202.50		120.00		469.50		549.00		711.00		5212.00
1996	778.00		673.50		612.50		485.00		492.50		293.50		142.00		140.00		291.00		495.50		658.50		814.50		5876.50
1997	748.00		636.50		688.00		546.00		327.50		267.00		137.50		86.50		179.00		446.00		539.50		749.00		5350.50
1998	0.00	z	582.50		621.50		558.50		378.50		0.00	z	119.00		127.00		185.00		462.00		578.00		859.00		4471.00
1999	750.72	a	691.50		717.50		611.38	a	497.00		312.50		206.50		125.50		264.50		512.53	a	559.14	a	685.50		5934.27
2000	821.00		661.63	b	708.50		483.89	c	431.50		223.00		168.50		191.50		244.50		500.50		733.50		792.00		5960.02
2001	723.33	a	722.00		657.00		595.50		439.00		335.17	a	205.50		151.90	a	242.50		479.00		618.00		769.50		5938.41
2002	722.00		669.00		719.50		572.00		535.50		245.00		167.50		166.50		282.50		489.00		580.50		710.00		5859.00
2003	607.50		689.50		624.50		545.00		422.00		196.50		125.00		129.50		217.00		404.00		741.92	d	778.00		5480.42
2004	775.50		642.50		626.00		475.00		364.00		214.50		118.50		84.00		300.50		429.00		677.50		736.00		5443.00
2005	759.00		668.00		364.00	i	398.50		254.50		214.00		114.50		94.00		254.50		366.50		609.00		743.50		4476.00
2006	660.50		673.50		639.00		507.50		344.00		0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	2824.50


Period of Record Statistics
MEAN	747.81		667.32		653.19		515.65		392.45		260.95		157.46		141.11		226.18		452.05		631.90		779.55		5685.45
S.D.	79.53		76.52		52.84		53.64		73.54		44.55		34.48		33.22		54.75		50.59		75.43		67.81		249.82
SKEW	0.46		0.35		-0.16		-0.12		0.08		0.12		0.28		-0.06		-0.18		-0.23		0.60		1.04		-0.57
MAX	938.00		851.93		734.00		611.38		535.50		335.17		223.50		202.50		303.50		524.50		780.00		966.50		5960.02
MIN	607.50		523.50		535.00		398.50		254.50		196.50		108.00		84.00		120.00		366.50		529.50		685.50		5212.00
NO YRS	18		19		18		19		19		17		19		19		19		19		19		19		16