OPTIMA LAKE, OK

Average of Minimum Temperature (Degrees Fahrenheit)

(346740)

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
1985	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	19.77	a	19.77	k
1986	22.89	d	25.18		35.71		42.93	c	49.35		60.97	a	66.13	a	63.03	a	57.14	a	42.00		27.36	b	21.80	a	42.87
1987	22.83	b	29.80	c	28.10	b	37.52	a	53.13		60.14	b	63.52		63.55		53.69	a	40.87	a	30.24	a	21.19		42.05
1988	13.28	b	21.00	d	27.35		37.00	a	50.09	h	61.25	b	62.77	a	64.68		54.00	a	39.77	a	29.92	d	20.80	f	41.10	b
1989	19.78	d	15.08	b	28.54	c	42.14	a	52.67	a	56.54	b	62.20	a	63.55		51.63		39.20	a	26.79	a	15.07	a	39.43
1990	19.29	c	23.37	a	31.65		40.83	a	48.74		62.60		64.32		63.19		58.70		-----	z	33.00	h	15.34	b	42.80	b
1991	17.97	a	26.07	a	32.72	b	42.03	a	53.42	e	61.36	b	64.42		63.62	b	54.04	c	41.52		25.62	a	25.77		42.38
1992	24.77	e	29.86	a	33.93	a	42.11	b	48.92	e	57.23		63.82	c	58.97		55.23		41.78	h	26.90	a	18.58		41.85	a
1993	18.43	a	20.11	a	30.65		37.90		50.24	b	60.13		66.19		63.37	a	51.38	a	39.53	a	22.04	g	22.42		41.85	a
1994	17.55		13.65	k	29.52	h	37.83	l	53.39	c	64.81	d	63.03	b	62.61		53.46	b	43.23		-----	z	-----	z	51.16	e
Period of Record Statistics
MEAN	19.64		23.81		31.08		40.31		51.23		60.56		64.05		62.95		54.36		40.87		27.81		19.99		41.68
S.D.	3.47		5.04		2.98		2.43		2.11		2.53		1.40		1.60		2.37		1.47		1.86		3.62		1.54
SKEW	-0.23		-0.34		0.19		-0.39		-0.08		-0.13		0.46		-1.87		0.55		0.35		0.40		-0.02		-0.99
MAX	24.77		29.86		35.71		42.93		53.42		64.81		66.19		64.68		58.70		43.23		30.24		25.77		42.87
MIN	13.28		15.08		27.35		37.00		48.74		56.54		62.20		58.97		51.38		39.20		25.62		15.07		39.43
YRS	9		8		8		8		8		9		9		9		9		7		6		8		4