SAN FRAN ACAD OF SCI, CALIFORNIA

Monthly Total Growing Degree Days

(047765)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 195707
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
1951	0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	219.00	q	501.00		568.00		591.07	a	465.00	c	278.50		2403.57
1952	213.79	b	319.54	b	316.41	b	435.50		501.68	a	470.56	c	543.02	a	507.76	b	609.11	b	531.98	c	411.50		320.00		5180.85
1953	398.50		336.00		361.50		349.00		477.50		497.50		478.90	b	569.00		650.00		610.38	b	461.50		398.00		5587.78
1954	317.75	c	356.00		329.50		452.50		453.52	d	489.50		545.00		502.00		599.48	a	589.50		465.00		277.00		5376.75
1955	219.67	b	306.50		401.00		320.00		464.00		458.00		476.00		447.00		499.50		557.00		435.50		376.50		4960.67
1956	330.50		275.00		363.00		379.82	b	513.00		514.66	a	500.77	e	378.00	i	630.50		533.72	a	530.00		350.50		4921.46
1957	235.00		366.00		411.55	b	489.50		519.00		603.00		411.00	i	0.00	z	0.00	z	0.00	z	0.00	z	0.00	z	2624.05


Period of Record Statistics
MEAN	285.87		326.51		363.83		404.39		488.12		505.54		508.74		505.35		592.76		568.94		461.42		333.42		5276.51
S.D.	74.64		33.53		37.66		65.30		27.01		51.74		33.60		43.28		53.52		32.80		39.73		50.39		268.23
SKEW	0.40		-0.33		0.05		-0.02		-0.11		1.22		0.19		0.20		-0.83		-0.03		0.63		0.01		-0.03
MAX	398.50		366.00		411.55		489.50		519.00		603.00		545.00		569.00		650.00		610.38		530.00		398.00		5587.78
MIN	213.79		275.00		316.41		320.00		453.52		458.00		476.00		447.00		499.50		531.98		411.50		277.00		4960.67
NO YRS	6		6		6		6		6		6		5		5		6		6		6		6		4