GUNNISON RIVER BASIN

375546107412000 IRONTON METEOROLOGICAL STATION NEAR OURAY, CO

LOCATION.--Lat 37°55'46", long 107°41'20", Ouray County, Hydrologic Unit 14020006, 0.8 mi southwest of Ironton, 1.2 mi north of Red Mountain No. 2, and 6.5 mi southwest of Ouray.

PERIOD OF RECORD.--July 1992 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=375546107412000

GAGE.--Weighing-bucket rain gage with satellite telemetry. Elevation of gage is 10,020 ft above NGVD of 1929, from topographic map.

REMARKS.--Unpublished air-temperature and rainfall data for water years 1992 and 1993 are available in district office.

EXTREMES FOR PERIOD OF RECORD.--

AIR TEMPERATURE: Maximum, 29.7°C, Oct. 9, 1997; minimum, -32.4°C, Dec. 17, 18, 1996.

PRECIPITATION: Maximum daily, 2.3 inches, Oct. 3, 1996 and Feb. 10, 2001.

EXTREMES FOR CURRENT YEAR.--

AIR TEMPERATURE: Maximum, 25.5°C, July 11; minimum, -25.7°C, Feb. 7.

PRECIPITATION: Maximum daily, 1.3 inches, Sept. 9.

Temperature, air, degrees Celsius 

WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

DAY	MAX	MIN	MEAN	MAX	MIN	MEAN	MAX	MIN	MEAN	MAX	MIN	MEAN
	OCTOBER			NOVEMBER			DECEMBER			JANUARY
1	8.1	-0.7	2.8	4.2	-2.4	0.5	1.8	-12.9	-5.4	-5.3	-17.0	-10.9
2	7.1	-0.3	1.4	0.7	-7.9	-2.2	4.6	-13.3	-6.0	-0.3	-17.4	-10.8
3	2.1	-7.1	-2.7	1.1	-17.9	-6.5	-1.0	-12.5	-5.1	3.5	-10.9	-5.3
4	4.9	-9.8	-1.9	2.1	-7.5	-2.6	-0.3	-13.7	-8.7	5.3	-9.8	-4.3
5	8.1	-2.8	2.4	0.7	-13.3	-6.6	0.7	-12.5	-7.6	3.9	-9.8	-5.3
6	12.1	-4.9	1.9	8.8	-9.0	-1.6	1.1	-14.1	-7.9	5.3	-10.9	-4.4
7	13.1	-1.7	4.3	8.1	-3.5	0.9	-0.3	-12.9	-8.3	9.2	-10.9	-4.5
8	12.1	-3.1	3.0	0.4	-2.8	-1.5	1.8	-14.1	-8.7	6.7	-8.3	-3.6
9	11.7	-2.4	3.0	1.4	-8.6	-2.2	2.5	-13.7	-8.0	0.7	-9.0	-4.8
10	13.5	-3.8	4.1	-3.5	-15.7	-9.1	3.5	-14.1	-7.3	-1.0	-10.1	-5.5
11	12.1	0.4	6.4	-4.6	-14.5	-8.4	-3.5	-16.2	-11.0	-1.4	-8.6	-5.8
12	9.9	-3.5	2.1	2.1	-17.4	-8.8	-5.7	-12.1	-8.5	-0.7	-15.7	-8.9
13	12.4	-3.1	2.7	5.3	-7.9	-3.1	1.1	-13.3	-7.5	3.5	-11.7	-5.8
14	11.0	-3.8	1.8	-1.0	-11.7	-7.0	8.1	-12.9	-5.1	5.7	-8.6	-3.3
15	11.3	-3.8	1.9	-4.6	-17.0	-10.1	3.5	-10.1	-1.8	-2.4	-14.9	-6.0
16	10.2	-4.6	1.3	0.7	-17.0	-8.9	1.1	-10.1	-5.0	-1.7	-15.7	-9.9
17	12.1	-3.8	2.6	6.7	-9.8	-3.1	-6.0	-12.9	-8.1	-1.7	-14.9	-8.8
18	8.5	-3.8	0.9	1.4	-14.9	-7.7	-7.9	-13.7	-11.2	2.5	-14.5	-7.8
19	9.5	-4.2	1.4	1.8	-12.5	-6.0	-8.3	-18.8	-14.1	7.1	-10.5	-4.7
20	8.8	-5.3	0.5	8.1	-10.9	-3.3	-2.4	-17.0	-10.4	4.9	-10.1	-3.8
21	8.1	-4.6	0.8	8.8	-6.4	-1.1	-4.2	-18.8	-12.9	2.1	-10.9	-5.5
22	6.0	-2.8	0.7	10.2	-4.6	0.7	-4.6	-19.7	-13.5	2.5	-12.5	-6.4
23	4.6	-2.1	0.0	6.4	-6.4	-1.0	-3.5	-15.7	-11.0	5.7	-9.4	-2.7
24	1.8	-4.6	-2.0	2.8	-8.3	-3.0	-4.6	-18.8	-13.3	3.5	-8.3	-3.4
25	3.9	-7.9	-2.2	1.1	-14.9	-6.0	-10.5	-21.1	-15.9	-0.7	-12.5	-5.6
26	1.1	-4.6	-2.1	-0.3	-17.9	-11.4	-6.4	-23.1	-16.4	6.0	-13.3	-5.5
27	3.5	-4.9	-2.3	-0.7	-15.7	-9.5	2.1	-17.0	-9.6	7.8	-7.1	-1.7
28	1.4	-8.6	-3.6	6.4	-12.1	-4.9	7.1	-10.5	-3.5	3.2	-10.5	-3.6
29	-1.7	-10.5	-6.6	7.1	-8.3	-2.7	-0.7	-9.0	-4.6	2.1	-12.1	-5.7
30	2.1	-10.5	-4.0	6.0	-7.9	-1.5	-1.0	-13.3	-9.3	5.3	-10.5	-2.8
31	3.9	-4.2	-0.5	---	---	---	-0.3	-12.9	-5.8	9.5	-8.6	-2.4
MONTH	13.5	-10.5	0.6	10.2	-17.9	-4.6	8.1	-23.1	-8.8	9.5	-17.4	-5.5
	FEBRUARY			MARCH			APRIL			MAY
1	8.8	-4.9	1.8	-5.3	-17.4	-11.4	9.5	-5.3	2.9	6.0	-4.9	0.0
2	0.7	-9.8	-4.0	-2.8	-19.3	-12.6	3.9	-2.8	0.3	8.5	-2.8	3.2
3	-5.7	-16.2	-11.7	2.5	-17.9	-6.5	-1.7	-8.6	-4.8	8.5	-1.7	3.4
4	-6.0	-17.0	-11.3	-4.6	-9.8	-7.1	-0.7	-15.3	-5.8	2.1	-4.6	-1.6
5	-10.1	-18.8	-14.2	-6.0	-12.5	-10	-1.7	-10.5	-5.7	2.5	-6.0	-1.6
6	-10.5	-24.1	-17.9	0.0	-16.2	-6.8	-3.1	-10.5	-7.6	4.9	-6.0	-0.8
7	-8.6	-25.7	-18.2	4.6	-11.7	-3.9	-2.8	-14.9	-8.6	5.3	-2.8	2.0
8	-3.8	-19.7	-13.7	3.5	-10.1	-2.9	7.1	-16.6	-5.0	2.5	-4.2	-0.3
9	-11.7	-20.7	-14.8	6.4	-9.4	-1.6	11.3	-6.0	2.0	5.3	-6.4	-0.9
10	-2.1	-20.2	-11.9	5.7	-6.4	-0.5	11.3	-4.9	2.9	0.7	-9.4	-3.8
11	1.4	-17.0	-8.8	6.0	-8.3	-1.4	11.7	-4.6	3.0	9.9	-7.5	1.3
12	5.3	-11.3	-2.2	7.8	-4.9	0.3	9.5	-3.5	3.0	13.1	-2.4	5.8
13	1.8	-2.1	-0.4	9.9	-3.5	2.2	11.3	-3.5	4.0	12.1	-1.0	6.1
14	-1.0	-9.8	-3.7	7.8	-4.2	1.3	9.5	-3.5	3.4	12.8	0.7	6.5
15	1.1	-12.5	-7.4	7.4	-6.4	0.9	2.8	-4.6	-1.6	7.1	0.7	2.8
16	1.8	-12.1	-3.9	1.8	-7.1	-1.8	8.5	-6.0	0.9	14.6	1.1	7.0
17	0.0	-8.6	-4.0	-0.7	-6.4	-3.7	6.7	-5.3	0.9	15.4	1.1	8.9
18	-5.3	-13.7	-7.9	-4.2	-8.6	-6.5	1.1	-6.4	-3.3	8.8	-0.3	5.1
19	-1.4	-14.5	-8.5	-3.8	-9.0	-6.9	2.5	-8.3	-3.1	12.8	-2.4	4.6
20	0.7	-13.7	-7.7	3.2	-10.1	-3.7	7.1	-8.6	-0.4	12.8	-0.3	6.1
21	-3.5	-14.5	-8.3	-1.7	-9.4	-4.9	6.4	-3.5	0.9	15.0	-1.4	6.8
22	-4.6	-12.5	-8.4	4.6	-13.3	-4.0	2.8	-4.6	-0.4	17.3	0.4	8.8
23	-4.6	-19.3	-10.9	8.5	-6.8	0.1	-3.1	-10.1	-5.2	17.3	1.8	10.0
24	-1.7	-10.5	-5.6	4.6	-6.4	-1.2	7.4	-4.2	0.7	17.3	2.8	9.4
25	-1.0	-10.1	-5.5	3.2	-6.4	-2.7	11.7	-2.8	4.0	15.4	1.4	7.5
26	-1.7	-10.9	-6.7	6.4	-6.4	0.5	9.5	-2.4	4.0	17.3	0.7	9.5
27	-3.8	-12.5	-8.0	-6.0	-12.5	-9.6	10.6	-2.4	4.1	19.3	3.2	11.5
28	-3.1	-12.9	-9.0	-6.8	-14.5	-11.2	8.8	0.0	4.8	21.7	4.9	12.3
29	---	---	---	-4.6	-21.1	-11.9	7.1	-1.7	2.6	19.7	4.2	11.7
30	---	---	---	---	---	---	4.6	-6.8	-0.4	20.1	5.7	11.9
31	---	---	---	---	---	---	---	---	---	18.1	4.9	9.5
MONTH	8.8	-25.7	-8.3	---	---	---	11.7	-16.6	-0.2	21.7	-9.4	5.2
	JUNE			JULY			AUGUST			SEPTEMBER
1	13.5	3.5	7.4	22.5	6.0	14.9	18.1	6.0	12.0	17.7	0.0	8.9
2	16.5	2.1	9.4	22.5	4.6	14.3	19.3	7.8	12.2	19.7	3.9	11.0
3	16.5	0.0	9.0	22.9	5.3	14.7	17.3	6.4	11.6	15.8	5.3	9.3
4	16.5	0.0	8.7	23.3	4.2	14.4	19.7	4.2	11.7	16.5	3.5	9.2
5	12.4	-1.0	5.8	22.9	4.6	14.3	20.9	5.7	13.3	15.0	3.9	8.1
6	13.9	-1.7	7.0	20.9	7.4	13.8	20.5	7.1	12.3	13.5	2.8	6.8
7	12.1	0.0	6.7	22.9	6.0	14.8	19.7	7.1	12.7	10.6	1.8	5.6
8	16.9	-0.3	8.6	24.6	6.0	15.7	18.9	6.7	12.7	16.1	0.7	8.9
9	15.8	2.8	9.7	23.3	4.6	14.6	21.3	6.4	14.1	8.5	-0.3	3.4
10	15.8	2.1	9.4	24.2	3.5	14.2	22.5	7.8	13.0	5.7	-1.4	0.9
11	16.5	-0.3	9.1	25.5	5.7	15.9	22.1	7.1	13.7	8.1	-2.4	1.6
12	15.8	0.0	8.1	24.6	7.8	16.6	21.3	7.4	13.0	14.3	-2.1	5.1
13	13.5	0.0	5.7	25.1	7.8	16.4	22.9	6.4	13.6	12.1	-3.5	3.3
14	16.5	0.0	8.8	23.8	7.8	15.8	20.9	5.3	12.9	14.3	-5.7	3.5
15	19.7	2.1	11.9	24.2	9.2	16.3	15.4	4.6	9.7	14.6	-1.7	6.7
16	17.7	4.6	10.7	22.9	7.8	13.4	13.1	3.9	7.8	16.9	1.1	8.6
17	16.9	3.5	9.4	23.8	7.4	14.2	14.3	4.9	8.9	15.0	-2.1	8.2
18	15.4	3.2	8.4	25.1	7.1	15.3	18.1	4.9	10.5	10.2	-7.1	1.2
19	12.8	2.5	7.1	23.3	8.1	12.7	20.1	4.6	12.1	---	---	---
20	13.1	1.8	8.0	22.1	7.8	15.6	20.9	5.7	13.1	13.5	-0.7	5.7
21	16.1	-0.7	8.8	22.9	7.4	15.9	21.3	6.0	12.0	14.6	-3.1	5.0
22	17.3	4.6	11.2	23.8	6.4	14.2	20.1	7.4	12.8	17.3	-1.4	6.8
23	16.9	1.4	10.6	20.1	7.8	13.6	18.1	5.7	10.2	17.3	0.7	8.2
24	15.4	2.5	10.8	23.3	7.4	12.8	18.1	4.2	10.6	18.9	0.0	8.3
25	13.1	-1.0	6.2	21.3	7.8	13.7	17.3	5.7	10.8	18.5	2.1	8.8
26	16.1	-2.1	7.1	21.7	7.8	12.9	18.5	4.6	10.2	18.9	-0.3	8.0
27	19.3	-0.7	9.8	21.3	7.8	13.2	17.3	6.0	10.0	18.5	1.1	8.4
28	20.1	2.5	11.8	20.9	4.9	12.1	13.9	5.7	9.4	18.9	1.8	9.2
29	19.7	3.9	12.0	18.5	6.7	11.2	17.7	4.9	9.2	17.7	3.9	10.3
30	22.5	3.9	13.6	21.7	5.7	13.6	15.4	4.9	8.1	18.5	2.5	9.5
31	---	---	---	18.5	7.1	10.9	16.9	2.5	8.6	---	---	---
MONTH	22.5	-2.1	9.0	25.5	3.5	14.3	22.9	2.5	11.4	---	---	---

Precipitation, total, inches 

WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

DAILY SUM VALUES

DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP
1	0.2	0.0	0.1	0.4	0.0	0.0	0.0	0.0	0.2	0.0	0.0	0.0
2	0.7	0.0	0.0	0.0	0.1	0.0	0.0	0.0	0.0	0.0	0.1	0.0
3	0.7	0.0	0.0	0.0	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0
4	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.3	0.0	0.0	0.0	0.0
5	0.0	0.0	0.0	0.2	0.0	0.2	0.1	0.1	0.0	0.0	0.0	0.3
6	0.0	0.0	0.0	0.0	0.0	0.0	0.4	0.0	0.0	0.0	0.0	0.1
7	0.0	0.0	0.0	0.0	0.0	0.0	0.4	0.0	0.0	0.0	0.0	0.2
8	0.0	0.3	0.0	0.0	0.0	0.0	0.0	0.1	0.0	0.0	0.1	0.0
9	0.0	1.2	0.0	0.1	0.1	0.0	0.0	0.0	0.0	0.0	0.0	1.3
10	0.0	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.1
11	0.0	0.2	0.0	0.2	0.0	0.0	0.0	0.0	0.1	0.0	0.0	0.1
12	0.0	0.0	0.0	0.0	0.1	0.0	0.0	0.0	0.0	0.0	0.2	0.0
13	0.0	0.0	0.0	0.0	0.3	0.0	0.0	0.0	0.1	0.0	0.9	0.0
14	0.0	0.0	0.0	0.0	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0
15	0.0	0.6	0.0	0.0	0.0	0.0	0.4	0.2	0.0	0.0	0.2	0.0
16	0.0	0.0	0.0	0.0	0.0	0.1	0.0	0.0	0.0	0.1	0.1	0.0
17	0.0	0.0	0.7	0.0	0.3	0.0	0.0	0.0	0.1	0.0	0.1	0.0
18	0.0	0.0	0.5	0.0	0.4	0.3	0.1	0.0	0.0	0.0	0.0	0.0
19	0.0	0.0	0.1	0.0	0.1	0.0	0.0	0.0	0.2	0.3	0.0	0.0
20	0.0	0.0	0.0	0.0	0.0	0.2	0.0	0.0	0.1	0.0	0.0	0.0
21	0.0	0.0	0.0	0.0	0.1	0.1	0.1	0.0	0.0	0.3	0.0	0.0
22	0.0	0.0	0.0	0.0	0.1	0.0	0.3	0.0	0.0	0.0	0.0	0.0
23	0.3	0.0	0.0	0.0	0.0	0.0	0.2	0.0	0.0	0.0	0.4	0.0
24	0.1	0.0	0.0	0.0	0.1	0.4	0.0	0.0	0.0	0.2	0.0	0.1
25	0.0	0.1	0.0	0.0	0.3	0.0	0.0	0.0	0.0	0.0	0.0	0.0
26	0.2	0.0	0.0	0.0	0.0	0.1	0.0	0.0	0.0	0.2	0.2	0.0
27	0.3	0.0	0.0	0.0	0.1	0.6	0.0	0.0	0.0	0.1	0.2	0.0
28	0.0	0.0	0.0	0.0	0.3	0.0	0.0	0.0	0.0	0.3	0.2	0.0
29	0.3	0.0	0.0	0.0	---	0.0	0.0	0.0	0.0	0.2	0.1	0.0
30	0.0	0.0	0.1	0.0	---	0.0	0.0	0.0	0.0	0.0	0.3	0.0
31	0.0	---	0.3	0.0	---	0.0	---	0.2	---	0.1	0.0	---
TOTAL	2.8	2.5	1.8	0.9	2.6	2.0	2.0	0.9	0.8	1.8	3.1	3.2
CAL YR 2002   TOTAL 20.0
WTR YR 2003   TOTAL 24.4