OK43 Coop Summary

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Cooperative Observer Station Summary

HULAH DAM (344393)
*	OSAGE County	Climate Division: 3
*	Latitude: 3655N; Longitude: 09606W	Elevation: 743 ft
*	Precipitation Period of Record:	1946/06-1997/04 ( 96%)
*	Temperature Period of Record:	1946/06-1997/04 ( 90%)

	Temperature (deg Fahrenheit)			Precipitation (inches)	Snowfall and Sleet (inches)
Monthly Averages (1971-2000)
	Daily Max	Daily Min	Daily Avg	Monthly Average	Monthly Average
January	NA	NA	NA	NA	NA
February	NA	NA	NA	NA	NA
March	NA	NA	NA	NA	.1
April	NA	NA	NA	NA	.0
May	NA	NA	NA	NA	.0
June	NA	NA	NA	NA	.0
July	NA	NA	NA	NA	.0
August	NA	NA	NA	NA	.0
September	NA	NA	NA	NA	.0
October	NA	NA	NA	NA	.0
November	NA	NA	NA	NA	.3
December	NA	NA	NA	NA	.2
Annual	NA	NA	NA	NA	NA

	Temperature					Precipitation						Snowfall and Sleet
Average Number of Days Per Month (1971-2000)
	Max>100	Max>90	Max<32	Min<32	Min<0	any	meas	0.10"+	0.25"+	0.50"+	1.00"+	any	meas	0.50"+	1.00"+	Glazing
Jan	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Feb	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Mar	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	*	*	*	*	NA
Apr	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	0	0	0	0	NA
May	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	0	0	0	0	NA
Jun	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	0	0	0	0	NA
Jul	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	0	0	0	0	NA
Aug	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	0	0	0	0	NA
Sep	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	0	0	0	0	NA
Oct	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	0	0	0	0	NA
Nov	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	*	*	*	*	NA
Dec	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	1	*	*	*	NA
Ann	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA

Month	Maximum Temperature Higher Than:	Minimum Temperature Lower Than:	Precipitation Less Than:	Precipitation Greater Than:
Exceedence Values (2 in 10 years)
January	74	-4	.45	1.85
February	79	-2	.59	2.07
March	86	10	1.14	3.89
April	92	25	1.95	5.11
May	92	36	2.54	6.56
June	98	48	2.28	6.94
July	105	54	.75	4.59
August	106	51	1.55	5.21
September	102	37	1.56	6.75
October	94	27	.87	4.98
November	83	12	.32	4.32
December	75	2	.45	2.34
Annual	107	-9	29.08	40.53

	Temperature (F) (1946-1997)				Precipitation (inches) (1946-1997)		Snowfall (1946-1997)
Monthly Extremes
	Record High		Record Low		Monthly Max	Daily Max	Monthly Max	Daily Max	Greatest Depth
Jan	80	(25th, 1950)	-21	(30th, 1949)	6.48" (1949)	1.85" ( 3rd, 1971)	13.1" (1949)	6.0" (22nd, 1954)	7.0" (30th, 1979)
Feb	90	(13th, 1962)	-15	( 5th, 1996)	5.11" (1985)	3.23" (21st, 1997)	13.0" (1980)	12.0" ( 8th, 1980)	7.0" ( 1st, 1979)
Mar	92	(12th, 1967)	-3	(11th, 1948)	11.16" (1974)	4.98" (11th, 1974)	16.0" (1970)	10.0" (17th, 1970)	16.0" (17th, 1970)
Apr	101	(13th, 1972)	11	(13th, 1957)	7.95" (1994)	5.06" (11th, 1994)	1.3" (1953)	1.3" (18th, 1953)	1.0" (18th, 1953)
May	95	(21st, 1956)	30	( 1st, 1963)	11.71" (1957)	4.32" ( 8th, 1995)	.0" -	.0" -	.0" -
Jun	103	(27th, 1956)	44	(14th, 1947)	11.29" (1957)	5.46" (11th, 1967)	.0" -	.0" -	.0" -
Jul	113	(14th, 1954)	47	(31st, 1971)	14.28" (1959)	4.78" (15th, 1959)	.0" -	.0" -	.0" -
Aug	115	(16th, 1956)	44	(29th, 1988)	10.72" (1964)	3.53" (20th, 1989)	.0" -	.0" -	.0" -
Sep	110	( 5th, 1947)	30	(29th, 1989)	9.63" (1988)	4.76" (30th, 1986)	.0" -	.0" -	.0" -
Oct	99	( 1st, 1952)	18	(29th, 1952)	10.03" (1984)	5.40" (13th, 1984)	.0" -	.0" -	.0" -
Nov	86	( 1st, 1950)	4	(29th, 1976)	7.40" (1979)	5.85" (21st, 1979)	6.0" (1971)	6.0" (23rd, 1971)	4.0" (23rd, 1971)
Dec	80	( 8th, 1966)	-16	(30th, 1983)	4.25" (1984)	2.35" (20th, 1991)	6.0" (1958)	6.0" (23rd, 1966)	6.0" (23rd, 1966)
Annual	115	(Aug 16, 1956)	-21	(Jan 30, 1949)	14.28" (Jul 1959)	5.85" (Nov 21, 1979)	16.0" (Mar 1970)	12.0" (Feb 8, 1980)	16.0" (Mar 17, 1970)

Probability	24 F or Lower	28 F or Lower	32 F or Lower
First Freezing Temperature in Fall
1 Year in 10	October 29	October 20	October 9
2 Years in 10	November 3	October 26	October 12
5 Years in 10	November 9	November 4	October 22
Last Freezing Temperature in Spring
Probability	24 F or Lower	28 F or Lower	32 F or Lower
1 Year in 10	April 6	April 15	April 23
2 Years in 10	April 1	April 11	April 20
5 Years in 10	March 22	March 30	April 13

Probability	Higher Than 24 F	Higher Than 28 F	Higher Than 32 F
Number of Days in Growing Season
9 Years in 10	213	201	177
8 Years in 10	219	205	180
5 Years in 10	232	217	194
2 Years in 10	248	229	202
1 Year in 10	259	234	211

PERCENT	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANNUAL
Precipitation Quantiles (Inches)
MEAN	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
10%	.31	.37	.62	1.30	1.93	1.70	.33	1.08	.97	.34	.03	.19	25.88
20%	.45	.59	1.14	1.95	2.54	2.28	.75	1.55	1.56	.87	.32	.45	29.08
30%	.56	.79	1.54	2.17	2.83	2.64	1.08	2.05	2.07	1.88	1.11	.81	31.22
40%	.73	1.00	1.83	2.50	3.91	3.22	1.60	2.20	2.81	2.25	1.35	1.04	31.70
50%	.85	1.16	2.20	2.92	4.58	3.48	2.18	2.62	3.35	2.82	1.98	1.14	34.84
60%	1.21	1.48	2.59	3.76	5.16	3.93	2.78	2.83	3.86	3.25	2.67	1.51	37.20
70%	1.49	1.66	3.28	4.51	5.93	5.09	3.73	3.57	5.44	3.85	3.48	1.71	38.06
80%	1.85	2.07	3.89	5.11	6.56	6.94	4.59	5.21	6.75	4.98	4.32	2.34	40.53
90%	2.53	2.75	6.59	6.79	10.31	8.19	7.84	5.78	8.20	6.31	5.21	3.17	46.63